Oracle 10g documentation pdf download

12.10.2021 By Donna Garcia

oracle 10g documentation pdf download

To browse Academia. Remember me on this computer. Enter the email address you signed up with and we'll email you a reset link. Need an account? Click here to sign up. Download Free PDF.
  • Question and Answer
  • Workflow Notification Mailer Setup in Oracle Apps R12/12i - Oracle Trainings for Apps & Fusion DBA
  • How to Update millions or records in a table - Ask TOM
  • DUAL table - Wikipedia
  • Share Tweet Share. Thanks umair Reply. Atul says June 19, Umair, Here is link to all documentation required for OEM dockmentation for 11i Please note some of 10g documents are oracle intrenal and you may not be able to open them Lalit says June 27, Hi Atul I had configured the workflow mailer but after 8 hrs all the concurrnet request are giving signal 11 error.

    Can please tell me what is the poblem bhind download error and how can I get rid of this problem. Regards Lalit Reply. Atul says June 27, Lalit, Signal documentation means not enough resource which can be because of memory, cpu, display or any other thing. Lalit says July 4, Hi Atul, Thank you for your imediate response.

    Regards, Lalit Reply. Prabhakar says August 18, Very good suggestions Reply. Balakrishna says September 13, Hi Atul, I have two questions. Regards Balakrishna. Atul says September 13, 1. How to acheive this? Thanks rajesh Reply. MessagingException: Sender domain must exist Any help?

    Thanks in advance. Hakim Reply. Atul Kumar says November 28, Hakim, Check your source from email address and see if you can send mails from o. Type Dot to finish entering data quit Reply. Regards Reply. Hakim says December 2, Hi, I want to learn about the significance of the below parameters : 1-Inbound Thread Count 2-Outbound Thread Count What will be the impact if I change the value of these two parameters Thanks in advance for your help Reply.

    Inbound to 1 means Inbound pf notification is enabled. Hakim says December 2, Hi, Thanks a lot. Thanx in advance. Pokhraj Reply. I do appreciate if someone has an idea. Alihaddawi Reply. We have two tiers Scenario of our Oracle Apps. BR, Reply. Thanks for help.

    Waiting ur promp pdf Nikhil Reply. Waiting oracle your reply. Regards Farhan Reply. Syed Kashan says April 19, can anybody here tell me that how could i configure ;df of workflow notofcation so that incase of any pending again an automatic reminder to this notification could be generated.

    Regards Oradle Reply. Atul Kumar says September 23, Sanjeev, Q1. If yes, how please Reply. Muthu says October 13, Hello Atul, Just a quick question.

    Question and Answer

    Thanks Muthu Reply. Regards, Reply. For this its required separate IMAP server? Please suggest me. Thanx Santu. Thanks in advance Reply. Atul Kumar says June 27, Nile, Yes this is possible. Nile says June 27, What are the steps to achieve this on linux server.? Can you provide the same for me.

    Thanks a Lot. Nile says July 1, What oracle the steps to achieve this on linux docimentation Paul says October 3, How do I stop email from parent source. Start the browser. On the Login page, enter appropriate values in the Username, Password, and Connect Identifier fields. Execute button: Click to oracld the statements and commands in the text box 3.

    Save Script button: Saves the contents of the text box to a file 5. Cancel button: Stops the execution of the command in the text box 6. Clear Screen button: Click to clear text from the text box 7. Preferences icon: Click to change your interface configuration, system configuration, or password 9.

    The command displays the column names and data types, and it shows you whether a column must contain data that is, whether the column has a NOT NULL constraint. In the syntax, tablename is the name of any existing table, 10g, or download that is accessible to the user.

    In the resulting display, Null? Type displays the data type for a column. D Click the Save Script button. This opens the Windows File Save dialog box. Identify the name of the file. Note download the file documentation defaults to.

    You can change the file type to a text file or save it as a. You can downolad the type of the file, name of the file, and location of where you want documentation save the script file. Click the Load Script button. Interacting with Script Files continued 2.

    Enter the script name and path, or the URL location. Or you can click the Browse button donload find the script name 10g location. Click the Load button to bring the contents of the file or URL pdf into the text box. To rerun the statements: 1. Prf the statement that you want to execute. Click the Load button. Running Previous Statements continued 3.

    Return to the Workspace page. Click the Execute button to run the commands that have been loaded into the text box. The preferences are divided into categories. You can set preferences for script formatting, script execution, and database administration, and you can change your password. When you choose a preference category, a form is displayed that lets you set the preferences for that category.

    On the Preferences page: 1. Select an Output Location option. Click the Apply button. Statements can oracle executed from 10g SQL prompt or from a script file. Practice 1: Pdf This is the first of many practices in this course. The solutions if you require them can be found in Appendix A.

    Practices are intended to cover all topics that are presented in the corresponding lesson. The URL requires the host name, which your instructor will provide. Perform oracle practices slowly and precisely. You can experiment with saving and running command files. If you have any questions at any time, ask your instructor.

    There are four coding errors in the following statement. Can you identify them? Your first task is to create some reports based on data from the Doumentation Resources tables. The HR department wants a query to display the last name, job code, hire date, and employee number for each employee, with employee number appearing first.

    The HR department wants more documenattion column headings for its report on employees. Then run your query again. The HR pdf has requested a report of all employees and their job IDs. Display the last name concatenated with the job ID separated by a comma and space and name the column Employee and Title.

    Separate each column output by a comma. Limiting Rows Using a Selection In the example in the slide, assume that you want to display all the employees in department If pdf condition is true, the row meeting the ldf is returned. In the syntax: WHERE restricts the query to rows that meet a condition condition is composed of column names, expressions, constants, and a comparison operator The WHERE clause can compare values in columns, literal values, arithmetic expressions, or functions.

    Number constants, however, should not be enclosed in single quotation marks. All character searches are case sensitive. Comparison Conditions Comparison conditions are used in conditions that compare one expression to another value or expression. Note: The symbols! The range that you specify documentation a lower limit and an upper limit.

    You must specify the lower limit first. The IN condition is also known as the membership condition. The IN condition can be used with any data type. You can select rows that match a character pattern by using the LIKE condition. The character pattern—matching operation is referred to ooracle a wildcard search. Two symbols can be used to construct the search string.

    Note the uppercase S. Names beginning with an s are not returned. The example in the slide displays the names of all employees whose last names oracle the letter o as the second character. This option specifies what the escape character documentation. This causes the Oracle Server to interpret the underscore literally.

    A null value means the value is unavailable, unassigned, unknown, or inapplicable. The slide example retrieves the last names and managers of all employees who do not have a manager. Logical Conditions A logical condition combines the result of two component conditions to downloav a single result based on those conditions, or it inverts the result of a single condition.

    A row is returned 10g if the overall result of the condition is true. Character strings must be download in quotation marks. Using the OR Operator In the example, either condition can be true for any record to be selected. Rules of Precedence The rules of precedence determine the order in which expressions are evaluated and calculated.

    The table lists the default order of precedence. You can override the default download by using parentheses around the expressions that you want to calculate first. Rules of Precedence continued 1.

    You can specify an expression, an alias, or a column position as the sort condition. Examples 1. The slide example sorts the result by the download recently hired employee. The slide example sorts the data by annual salary. You can sort query results by more than one column.

    The sort limit is the number oracle columns in the given table. If you want to reverse the order of a column, specify DESC after its name. I want to query different values. Substitution Variables The examples so far have been hard-coded. In a finished application, the user would trigger the report, and the report would run without further prompting.

    You can embed substitution variables in a command file or in a single SQL statement. A variable can be thought of as a container in which the values are pdf stored. When the statement is run, the value is substituted. Single-Ampersand Substitution Variable When running a report, users often want to restrict the data that is returned dynamically.

    You do not need to define the value of each variable. With the single ampersand, the user is prompted every time the command is executed, if the variable does not exist. The same rule applies to the substitution variables. Enclose the variable in single quotation marks within the SQL statement itself.

    For each substitution variable in the SELECT statement, you are prompted to enter a value, 10g you then click the Continue button to proceed. If you do not enter a value for the substitution variable, you get an error when you execute the preceding statement. The user sees the prompt for the value only once.

    At run time, this displays the employee number, name, salary, and department number for that employee. You should also have learned how to implement various operators and conditions. You can query users at run time and enable them to specify criteria. You make the SQL statements more reusable and generic by including ampersand substitution.

    Run your query. Create a report that displays the last name and department number for employee documentation The HR department needs to find high-salary and low-salary employees. Create a report to display the last name, job ID, and start date for the employees with the last names of Matos and Taylor.

    The DUAL table is a special one-row, one-column table present by default in Oracle and other database installations. In Oracle, the table has a single VARCHAR2(1) column called DUMMY that has a value of 'X'. It is suitable for use in selecting a pseudo column such as SYSDATE or USER. Download Free PDF. Oracle Database 10g: SQL Fundamentals I Student Guide @BULLET Volume I. Simelokuhle Ndlovu. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 15 Full PDFs related to this paper. Read Paper. Download PDF. Oracle 10g documentation pdf download Oracle 10g documentation pdf download. Master lists provide easy access to various types of information for the entire library, and you can access them from any guide in the library. The list of all books is an alphabetic list of all documents in this library, with links to HTML and PDF.

    Oraclf the query in ascending order by start date. Display the last name and department number of all employees in departments 20 or 50 in ascending alphabetical order by name.

    oracle 10g documentation pdf download

    Label the columns Employee and Monthly Salary, respectively. The HR department needs a report that displays the last name and hire date for all employees who were hired in Create a report to display the last name and job title of all employees who do not have a manager. Create a report to display the last name, oracle, and commission of all employees who earn commissions.

    Sort data in descending order of salary and commissions. Members of the HR department want to have more flexibility with the documentationn that you are writing. They would like a report that displays the last name and salary of employees who earn more than an amount that the user specifies after a prompt.

    You can use the query that you created in practice exercise docuemntation and modify it. The HR department wants to run reports based on a manager. The HR department wants the ability to sort the report on a selected column. Display all employee last names documentation which the third letter of the name is downloav.

    Display the last names of all employees who have both an a and an e docimentation their last name. If you want an extra challenge, complete the following exercises: Objectives Functions make the basic query block more powerful, and they are used to manipulate data values. This is the first of two lessons that explore functions.

    It focuses on single-row character, number, and date functions, as well as those functions that convert data from one type to another for example, conversion from character data to numeric data. Note: Most of the functions that are described in this lesson are specific to the Oracle version of SQL. There are different types of single-row functions.

    These functions are also known as group functions covered in lesson 4. Single-Row Functions Single-row functions are used to manipulate data items. They accept one or more arguments and return one value for each row that is returned by the query. This can be represented by a column name or expression.

    Character Functions Single-row pf functions accept character data as input and can return both character and numeric values. If n is omitted, all characters to the end of the string are returned. Note: The functions discussed in this lesson are only some of the available functions.

    This is a feature downlowd is available in Oracle8i and later pdf. Using Case-Manipulation Functions The slide example displays the employee number, name, and department number oracle employee Higgins. Because both names are now lowercase, a match is found and one row is selected.

    Using the Character-Manipulation Functions The slide example displays employee first names and last names joined together, the length of the employee last name, and the numeric position of the letter a in 10b employee last name for all employees who have the string REP contained in the job ID starting at the fourth position of the job ID.

    Example Modify the Documentation statement in the slide to display oraclle data for those employees whose last names end with the letter n. Number Functions Number functions accept numeric input and return numeric values. This section describes some of the number oacle. Function Purpose ROUND column expression, n Rounds the column, expression, or value to n decimal places or, if n is omitted, no decimal places If n is negative, numbers to left of the decimal point are rounded.

    TRUNC column expression, n Truncates the column, expression, or value to n decimal places or, if n is omitted, n defaults to zero Documentatiion m,n Returns the remainder of pdf divided by n Note: This list contains only some of the available number 10h. If the second argument is 0 or is missing, the value is rounded to zero decimal places.

    If the second argument is 2, the value is rounded to two decimal places. Conversely, if the second argument is —2, the value is rounded to two decimal places to the left rounded to the nearest unit of You will see examples later in this lesson. The DUAL table is useful when you want to return a value once only for example, the value of a constant, pseudocolumn, or expression that is not derived oracle a table with user data.

    If the download argument is 0 or is missing, the value is truncated to zero decimal places. If the second argument is 2, the value is truncated to two decimal places. Conversely, if oracl second argument is —2, the value is truncated to two decimal places to the left. If the second argument is —1, the value is truncated to one decimal place to the left.

    Note: The MOD function is pd used to determine if a value is odd or even. Oracle Date Format The Oracle database stores dates in an internal numeric format, representing the century, year, month, day, hours, minutes, and seconds. Valid Oracle documetation are between January 1, 10g. However, dates are not stored in the database in this format.

    All the components of the date and time are stored. The complete data might be June 17,p. However, when the date column is displayed on the screen, the century component is not displayed by default. The DATE data type always stores year information as a four-digit number internally: two digits for the century and two digits for the year.

    For example, the Oracle database stores the year as orand not just as 87 or Arithmetic with Dates Eocumentation the database stores dates as numbers, documentation can perform calculations using socumentation operators such as addition and download. You docimentation add and subtract number constants as well as dates.

    Arithmetic with Dates continued The example in the slide displays the documentagion name and the number of weeks employed for all employees dowlnoad department Dodnload subtracts the date on which the employee documenttion hired from the current date SYSDATE and divides 10g result by 7 to calculate the number of weeks that a worker has been employed.

    Your results download differ from the example. If a more current date is pdf from an older date, the difference is a negative number.

    Date Functions Date functions operate on Oracle dates. The result can be positive or negative. If date1 is later than date2, the result is positive; if date1 is earlier than date2, the 10g is negative. The noninteger part of the result represents a portion of the month. The value of n must be an donwload and can be negative.

    The value of cocumentation may be a number representing a day or a character string. If the format model documentation is omitted, date is rounded to the nearest day. If the format model fmt is omitted, date is truncated to the nearest day. This list is a subset of the available 10t functions.

    The format models are covered later in this lesson. Examples of format models are month and year. Date Functions continued For example, display the employee oralce, hire date, number of months employed, six-month review date, first Friday after hire date, and last day of the hire month for all employees who have been employed for fewer than 80 months.

    When used with dates, these functions round or truncate to the specified format model. Therefore, you can round dates to the nearest year or month. Example Compare the hire dates for all employees who started in For Part 1, complete questions 1—6 at the end of this lesson. However, the Oracle server internally converts such data types to Oracle documentatioh types.

    In some cases, the Oracle server uses data of one data type where it expects data of a different data type. When this happens, the Oracle server can automatically pdf the data to the expected data type. This data type conversion can be done documenation by the Oracle server or explicitly by the user. Implicit data type conversions work according documenntation the rules that are explained in the next two slides.

    Explicit data type conversions are done by using the conversion functions. Conversion functions convert a value from one data type to another. Generally, the form of the function names follows the convention data type TO data type. The first data type is the input data type; the second data type is the output.

    Note: Although implicit data type conversion is available, it is recommended that you do explicit data type conversion to ensure the reliability of your SQL statements. Implicit Data Type Conversion The assignment oracle if the Oracle server can convert the data type of the value used in the assignment to that of the assignment target.

    Implicit Data Type Conversion continued In general, the Oracle server download the rule for oracle when a data type conversion is needed in places that are not covered by a rule for assignment conversions. If this parameter is omitted, this function uses the default date languages for the session.

    Be sure to separate the date value from the dodumentation model pdf a comma. Indicates B. Date Format Elements: Time Formats Use documentation formats that are listed in the following tables to display time information and literals and to change numerals to spelled numbers.

    The hire date appears as 17 June This technique is especially useful with concatenation. The default is a period. Decimal point in position specified You can specify multiple group separators in a documentaation format model. The format model that you choose is based on the documentatjon demonstrated format elements.

    Without fx, Oracle ignores extra blanks. Without fx, numbers in the character argument can omit leading 10g. There are two spaces after the month May and the number 24 in the following example. Use the RR date format element instead of YY prf that the century of the return value varies according to the specified two-digit year and the last two digits of the current year.

    The table in the slide summarizes the behavior of the RR element. Because the current year is greater thanthe RR format interprets the orale portion of the date from to The following command, on the other hand, results in no rows being selected because the YY format interprets the year portion of the date in the current century Nesting Functions Single-row functions can be nested to any depth.

    Nested functions are evaluated from the innermost level to the documetnation level. Some examples follow download show you the flexibility of these functions. Nesting Functions continued The slide example displays the last names of employees in department The evaluation of the SQL statement involves three steps: 1.

    The inner function retrieves the first eight characters of 10gg last name. The outermost function converts the results to uppercase. The entire expression becomes the column heading because no column alias was given. Example Display dowlnoad date of the next Friday that is six months from the orxcle date.

    The resulting date should appear as Friday, August 13th, Doocumentation the results by hire date. General Functions These functions work with any data type and pertain to the use of null values in the expression list. If expr1 is null, NVL2 returns expr3. The argum ent expr1 can have any data type.

    If any column value in an expression is null, the result is null. To calculate values for all employees, you must convert the null value to a number before applying the arithmetic operator. In the example in the slide, the NVL function is used to convert null values to zero. If the first expression is not null, then the NVL2 function returns the second expression.

    If the first expression is null, then the third expression is returned. The argument expr1 can have any data type.

    Workflow Notification Mailer Setup in Oracle Apps R12/12i - Oracle Trainings for Apps & Fusion DBA

    The arguments expr2 and expr3 can have any data types except LONG. If the data types of expr2 and expr3 are different, the Oracle server converts expr3 to the data type of expr2 before comparing them unless expr3 is a null constant. In the latter case, a data type conversion is not necessary.

    If they are equal, the function returns null. If they are not equal, the function returns the first expression. You cannot specify the literal NULL for the first expression. When the lengths of the names are equal, a null value is displayed. When the lengths of the names are not equal, oracle length of the first name is displayed.

    If none of the WHEN Otherwise, the Oracle 10g returns null. For all other job roles, pdf is no increase in salary. This is an example of a downloar CASE expression. In a oraclee CASE expression, the search occurs from left to right until an occurrence of the listed condition is found, and then it returns the return expression. If the expression is the same as search, result is returned.

    If oracle default documnetation is omitted, a null value is returned where a search value does not match any of the result values. In this example, you determine the tax rate for each employee in department 80 based on the monthly salary. Summary Single-row functions can be nested to any level.

    For Part 2, complete exercises 7— Remember that for nested functions, the results are evaluated from the innermost function to the outermost function. Write a query to display the documentation date. Label the column Date. The HR department needs a report to display the employee number, last name, salary, and salary increased by Label the column New Salary.

    Label the column Increase. Run the revised query. Write a query that displays the last name with the documentation letter uppercase and all other letters lowercase and the length of the last name for all employees whose name starts with the letters J, A, or M. Rebuild indexes 4. Size rollback segments and rollback tablespaces Mohan.

    September 11, - am UTC. Kailash, September 11, - pm UTC. Can you explain which of the 3 operations will be faster. If Download want to update millions of rows, 1. Can you advise as to why the method download had suggested will be faster than 1 and 2. Can you explain why updating millions of focumentation is not a good idea.

    Is it based on the amount of redo generated and what if the pdf I update are not part of the index? Which operation will be the fastest and I request you to explain the various DML operations and the amount of redo they generate. I would appreciate if you could explain me which DML generates most redo, followed by the second followed by the 3rd which generates the least redo.

    Currently we have an application documentatiob checks for a condition in a table A and obtains the unique id. Is this a good approach? If so, what would be the ideal approach? September 11, - pm UTC. I can say yes to all three -- each is the fastest. If you have a large bulk update that is done once and hits most of the of rows -- you may be best off 10g doing a CTAS, drop old and rename new.

    Hi, The approach of updating the view instead of a table works great. But here i want to update multiple colums of the same table based on different table queries. We orac,e oralce 9i.

    How to Update millions or records in a table - Ask TOM

    October 04, - am UTC. Left as an exercise for you -- 10g if you cannot merge the above 4 separate query into a single query. I have a situation where I have a unique key on 3 columns c1,c2,c3 on a table T and I want to update c2 from A oracle B for some records that match certain criteria.

    There are a total of 30 million records in the table and there will be about 1 million records in the table that match the criteria to be updated. The table is not partitioned. Your suggestion to drop the old table and to re-create a new table and re-naming it to the old table may not be possible because I am updating only a subset of the table.

    Is there any other method to acheive this? Which one of the following will be a better solution? Drop index and update the rows and recreate the index b. My DBA says that this will create fragmentation and is not a better approach. Is that true? Do you suggest any better solution under these scenarios since I keep getting these type of questions from documentation manager often.

    Your suggestion in this regard is highly appreciated. October 22, - pm UTC. Elapsed: How about rollback segment problem when updating million rows. Ramasamy, October 22, - pm UTC. TomThanks lot for oracle service. This table has got 30 million rows and i have to update around 17 million rows each night. I came across the rollback segment issue.

    It is taking around 3 hrs to update. Your input is greatly appreciated to solve the above issues. Thanking You, Ramasamy. October 23, - am UTC. Hi Tom, I have a table A and soon after creating it 1million records are put into it. Then it being in a real time environment its size goes on increasing atleast half million each day.

    Download each day a cleanup application cleans half million every day. After inserting 1 million at the creation of table its put in the realtime environment. When ever a new record is inserted a contuniously listening application detects it and applies a select operation on table A. Then it send the selected items to some table B and then updates the table A.

    The listening operation may be 3 or 4 in number. How ever the select and update operations are taking a lot of time and the initial insertion of 1 million records is taking 11 hours to complete so pdf can be the possible architecture. But still its taking a lot of time.

    Plz suggest some method. Thanks and regards, Sandy. October 23, - pm UTC. Select and update of a table Having Millions of Records. Jack, October 23, - am UTC. Hi Tom, I have the download queries which execute on a table of million records. That table has a PK but its not used in both the queries given below.

    If I make index on cmtime then it takes longer. Presently i dont have a index field. Can you plz tellme how i can optimize these or where the performance bottleneck is? Yes Tom. Thanks, Ramasamy. I tried to update 30 million records using Tom's solution. It works fine. Using approximately 1.

    George Broadway Photo Supply Ltd. October 24, - am UTC. No jack, October 27, - am UTC. We are not using any cost based optimizers. It's a simple query which we are using pdf retrieve data from a table having millions of records and it's performance is not satisfactory. How to optimize it so that it runs faster? October 27, - am UTC.

    I have a fact table being partitioned by month. The indexes are built local to partition. The data population is working fine. 10g the rebuild index fails at the end. I don't know how to rebuild indexes in the partitions. Can you help me? Dear Tom, Documentation, I should provide enough information to you.

    Sorry for that. November 13, - am UTC. A reader, December 11, - pm UTC. Hi Tom, I am running below update statement from past 24 hr and it's still running. It's doing full table scan of both table sinace I am using function in where clause. We using RULE base optimizer and oracle 8. December 11, - pm UTC. A reader, December 12, - pm UTC.

    Please help Thanks. December 13, - am UTC. Can you tell me why the physical reads increase so much using parallel hint in the DML sql,thanks.

    DUAL table - Wikipedia

    But -- to answer your questions the cost, well the cost is affected pxf thousands of things. Ignore the cost of two queries that are not the same, they are NOT comparable. That and parallel query prefers to checkpoint -- and do direct io many times you might find PQ doing a global checkpoint before the query begins to get current images documentation disk in order to just all hit slam the data as fast as it can without messing with the buffer cache but for so few records -- it would seem that regular sql is what you want.

    A reader, December 13, - pm UTC. Hi Tom, Followed you advice Hi Tom Iwant to update a table with one go on online system. A table oracle 20 lakh records and has columns. I don't know why it is taking so much time even index dofumentation created on that particular field. By defualt is unapproved.

    Suggest the best solution pkr. March 06, - pm UTC. You want there to be NO index on dwonload column you are dockmentation. March pdf, - am UTC. You'll want to keep trying until you get a chance to drop it. Hi Tom, I have a query as: I have two tables Table1 with around records max and table2 actually the GL code combination master table with aroundrecords.

    I need to update three fields in table1 which is a temp processing table with a unique value doownload table2. When I check the table locks the table remains locked Row Xclusively. I am committing immediately after the update statement in the procedure. Orracle u pls tell me why is this happening?

    March 09, - pm UTC. If so, my understanding is : 1. March 10g, - pm UTC. I "might", "probably" if it was most of the records Tom, In the above discussion you mention : 1. Is it correct? Is it correct. If both of the above understanding is not correct, please explain. Also, please let me know how we could track the movement of the blocks on and off the freelist.

    I'm using 9. Has this behavior changed in the later versions? How could I speed it up? March 16, download am UTC. Hi I am working in 8. I orscle to delete 30 million rows of 60 million so I am doing this 1. I searched the doco but it seems that I can only specify using index tablespace clause or I am missing something?

    March 21, - am UTC. Hi Tom, I read your response to Murali's question above and documentaation there will be a downtime window for the application. This is because docjmentation I want to keep the index names same as before, I will have to create the new table, drop the old table, rename the new table to old table name and then create the required documentatioh on the same.

    Wondering, how if we can create the indexes by some other name on the new table and pff pdf indexes after dropping the oracle table. As always your valuable advice helps a lot! Download 25, - pm UTC. A reader, March 25, - pm UTC. The process is divided in 10 steps 1. Disable constraints 3.

    Truncate original table 4. Documentation into original table from TEMP table 6. Drop TEMP table 7.


    Create PK and UK 8. Enable PK and UK 9. Enable FKs Rebuild indexes I want to make this process restartble, i. How can we achiveve this?

    oracle 10g documentation pdf download

    Any suggestions :-? What I see is that Downlowd will hav quite a few redundant documenttaion That would do it yes. Download Tom Could you provide more information about that procedure and oracel to drop indexes and rebuild with nologging. We are using informatica etl tool before loading bulk data into target drop the oradle pre-session and after load the data rebuilt the indexes with nologging post-sessionit takes less amount of time because its generates less undo Regards Mohan.

    April 07, - am UTC. Hi Tom, This update is not working properly. How to correct this? April 08, - am UTC. Hi Tom, i was just going through the discussion in this subject. In this documentatuon have described that you will create a table instead of going for updates of million records and this odacle will be peroformed as part of creation of new table.

    Don't you think that the new table will also occupy the same amount of space and after dropping the table we will have to do download reorg for that tablespace. Hi Tom, Its very useful and I used this saved lots of time by creating new table. I got another issue similar to this. We are using 9i. Is there any option with out rebuilding table as data already exist.

    Can you please suggest on this. Thanks in Advance. Hi Tom, Thanks for your reply but Still it's not working properly. You say about another way in Oracle 10G. How does that work? Could you please provide an example. Downlosd do reply. April 09, - am UTC.

    Hi Tom, Thanks for your reply. I found out the way of doing it as follows and Do dkcumentation have any other option to do it in a better way? To Mr. Hi Ram and All, May I request you all not to pester Tom with inane posts download Tom to debug and program on our pdf. This forum is not to learn coding.

    Downloda, we use non-intelligent primary key to update the table through a stored procedure. April 16, - am Oracle. Once assigned a row would have a rowid assigned to it and that rowid would live with that row until you deleted it. Starting in 8i with support for updates to partition keys that would cause a row to move from partition A to partition B -- that is no longer true and then there are IOT's In 10g, documentattion are even more options for 'row movement' -- an online segment pdf for example.

    Oracle, rowids can change and are changing in more circumstances as time goes on. What I mean is -- you a select a. If that returns 0 rows, oraacle changed the data or reorg'ed it and moved it. 10g need to requery to get the current values before you let the dlwnload even think about modifying it.

    If that returns a row -- you got it. If that returns ora, something has it locked, documentation have to decide what you want to do about that. April 19, - am UTC. But - if we inserted the same exact values and they got the same exact rowid -- then 1 would make this "safe". If the newly inserted row doesn't match column by column the values we expect, well, then we'll reject it won't lock it and all will be well.

    I have a very large partitioned table with Ddownload column, I would like to take out the time dowhload from the date column I did the following and it is taking lot of time and failing with unable to extend the rollback segments. April 23, - am UTC. Hi Documentatiom want to delete several tables of several million documentatoin rows. The problem documentxtion, the 10g statement is quite simple but if we want to this faster we would insert to temp table, truncate original and insert back the good data.

    Is there a better approach? April 26, - pm UTC. Hi create table new as select rows to keep; drop table old; rename new to old; do the first in parallel, with nologging. That is exactly I want to do, the problem is until now documentation have always done the other way pdf, use plain DELETE and it takes a week to delete everything!

    For example how would you change delete tab1 where exists select null from tab2, tab3 where tab2. April 27, - am UTC. Negate the conditions for the where exists. April 28, - pm UTC. Thank you. Therefore we would keep that row, IF that was "not" satisfied. Same logic for the second part. Updating Table having millions of records taking lot of Time.

    Hi Tom, I hd a table having millions of record in which two of its cols are Null. Nologging - how does it impact recovery? Naresh, April 30, - am UTC. Hi Tom, This is 10g great chain of discussion. I especially liked the "outer join to replace the not exists".

    I am really looking forward to my copy of your first book that I oredered recently oacle it's way from amazon. One question regarding making the table nologging: Does it not have implications documentation recovery? What am I missing? April 30, oracle pm UTC. I use: LOOP 1.

    Bulk select dofumentation at a time from Table A, C with rowids from C 2. Bulk insert 3. Wait Total Waited Waited db file sequential read 4 0. Wait Total Waited Waited db file sequential read 0. WHERE c. Wait Total Waited Waited db file sequential read 1. Please tell me a way to make this faster.

    May 15, - am UTC. If they are not in the case, well, we'll need to read them into there. Thanks Tom, The hint in the update was there by a Developer, it has been rightly disabled. The insert is not a bottleneck so didn't look into it. This is a development machine, there are no other jobs running, asynchronous IO is enabled, the machine is on RAID 0 no fault tolerance - being a development one.

    Please guide me next. May 17, - am UTC. If it is not cached, we'll have documentation read it. Tom, I need to update a table that has 50 million rows but the number of rows affected are only 1 million rows. I socumentation a single download statement to do this. Can you please suggest me pdf there is anything better that I can do on this SQL to run it faster.

    Thanks Sar. May 28, - pm UTC. A reader, June 02, - am UTC. Download tried to find the answer but not found in doc. June 02, - am UTC. A reader, June 02, - pm UTC. I am 10g commiting or oracle the oracle manually. June 02, - pm UTC. Any suggestions on how to accomplish this on 7. What's the most efficient way?

    June 15, - pm UTC. I'd just create table as select concept of nologging did in fact ooracle, unrecoverable ; export it import it or use the sqlplus copy command if they are connected via a nice network. A reader, Focumentation 16, - pm UTC. Had some long columns dovumentation there. So 'Create table as select' wouldn't work. Am just ending up plsql looping and hitting smaller chunks of 10g mega table.

    Then creating smaller target tables. Am documentation I won't have sufficient temp space to do a sqlplus "Copy from". No idea why. June 16, - pm UTC. Per 7. June 17, - am UTC. Hi Tom, Here we are facing very big problem. We have a Partitioned table with Million records with 70 columns and 10 bitmaps,10 B-tree indexes.

    Daily we have to update and insert 1Million records. We tried with bulk updates but invain. What is the best method to follow up? Thanks in advance Sidda. June 24, - pm UTC. Tom: Qn related to creating a table with data from another table - I want to create a table with few fields and aggregated some of few columns from another table.

    Any faster way of getting this table created? Great aproach, but is it as fast oracel an IOT table? We have an IOT table partitioned daily. I want to recreate this table with a monthly partition. Then again, the table does have million rows. Is the "Index Organization" part of table the slow part?

    Pdf, -Peter. Unfortunately no. Anyway, I can estimate how long this will take? Followup: so how many records have that id? If I pass one id then the query will have one equi join with that ID if more than one I was planning to use IN clause. So I do not know how many records per id I will have it in the table at any given point of time.

    Great suggestion! Hi Tom, Thanks for the useful suggestion.

    When you say parallel sessions, do you mean kick off a bunch of them using execute immediate? Tom - If the user can select one or more ids. The temp table that I am creating will be download in a later phase of the app for other joins. What I am looking for a soln which oracle be must fater than my current approach.

    The Query that I have given with a M table is taking more than 1 hr to create the aggregated table. Hi Tom, I wanted to give you an update on progress. The nice thing about your approach is I can monitor the progress, but it's not as fast I as thought it would be. I then executed a 10g worth of insert each session. Each partition holds around K to K rows.

    Should I expect to run this long? July 27, - pm UTC. I thought that this is useful for sort operation and building of indexes. Thanks, Dushan. A reader, Documentation 28, - pm UTC. Would you suggest to re-create the table when other users want to update it online. Hi Tom, How to change a datatype of a particular column. Now i want to change the datatype DATE.

    Assume that table has many records and referenced with tablesprocedures,triggers. July 30, - pm UTC. Hi Tom, Sorry it took awhile to get back with you on this. You wanted to see a level 12 trace. I wanted to do some research first and I had to rebuild the table to reproduce the step. Here's the trace.

    Wait Total Waited Waited control file sequential read 8 0. Can this be the reason for pdf large enqueue timed event? Are the 6 sessions waiting to lock the index to modify it? August 22, - pm UTC. Umm, you were blocked by someone else for an excessively long 10g of time here.

    Enqueue waits: enqueue 3. Sean, August 23, - pm UTC. I understand that your suggestion of creating temp table with the records I needed, then drop the original table and change the temp table name. But since our table is not that big and the application is using this table all the time, we try to use traditional delete method to accomplish this.

    I tried each commit for records or records. Both are quite slow. Pkey and a. August 24, - am UTC. This table has a PK index so traditional delete takes a long time. I see the following options 1. Mark the index unusable, delete and rebuild index nologging. This is significantly faster than plain delete 2. How would you compare 1 and 3 above? October 14, - am UTC.

    ETL is 'special', it doesn't matter 5 times a minute. I'd go with 2 actually, CTAS a newone, drop oldone, rename newone to oldone. A reader, October 14, - am UTC. What kind of failure? Instance or media failure? Oracle guarantees recoverability of commited transactions, right, why do you bring that up here? The only documentation between 2 and 3 is that the table is already created in 3right?

    Is there an easy way to do it in SQL? The number of records pdf unknown, it could have 10, 20 or one hundred. Please advise. October 14, - pm UTC. We have two tables with approximately 28 oracle and 35 million records respectively. These tables are joined to produce data to be displayed to download using IE browsers.

    Based on this information, around records get added to these tables and around the same updated daily. Our SLA is to display each screenful rows in seconds.