Using select query in case statement in sql

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  http://docs.oracle.com/cd/A97630_01/appdev.920/a96624/04_struc.htm
If you are comparing a single expression to multiple values, you can simplify the logic by using a single CASE statement instead of an IF with several ELSIF clauses. COMMIT; WHEN OTHERS THEN NULL; END; In IF statements or other places that require at least one executable statement, the NULL statement to satisfy the syntax

Inserting multiple rows in one SQL statement

  http://blog.bflarsen.com/?p=7
Updating indexes is often the slowest part of inserting rows into a table, and inserting several at one time only rebuilds the index once (after all the rows are added) rather than once per row. Why I used UNION ALL instead of UNION UNION ALL will offer significantly better performance than UNION, because the UNION command assumes that if there are duplicates they should be removed (mathematically speaking, the union of two sets includes only one copy of the overlapped region.) If you use UNION ALL, it keeps both copies of the overlapped region

  http://oracle.ittoolbox.com/groups/technical-functional/oracle-sql-l/how-to-transpose-column-data-into-rows-using-select-statement-3391813
No spaces please The Profile Name is already in use Password Notify me of new activity in this group: Real Time Daily Never Keep me informed of the latest: White Papers Newsletter Jobs By clicking "Join Now", you agree to Toolbox for Technology terms of use, and have read and understand our privacy policy. I would group the main query based on the grouping point and then use either a series of decodes or a series of case statements based on the rank number to concat the rows into a single row (there may be a better way to do this last part but I don't have time to look into it)

  http://blog.skufel.net/2012/01/how-to-use-sql-server-to-query-active-directory/
Since I am able to bring in one record at a time, is it possible to create a sql user function to pull in multiple records for say, an SSRS report? Reply 4-18-14 Sri says: Enjoy.. We manage our SSRS folder permissions using AD and it would be a huge benefit to be able to query AD to get a list of who has permissions to folders and reports on our SSRS

Performance Tuning SQL Server Cursors - SQL Server Performance

  http://www.sql-server-performance.com/2007/cursors/
The greater the number of rows being modified, the greater the locks, and the higher the likelihood of lock contention on the server, hurting performance. LOCAL cursors are more secure as they cannot be referenced outside the procedure or trigger unless they are passed back to the calling procedure or trigger, or by using an output parameter

  http://www.bennadel.com/blog/939-using-a-sql-join-in-a-sql-delete-statement-thanks-pinal-dave.htm
Ben Nadel May 27, 2009 at 8:26 AM 12,304 Comments @BabyMilo, It won't update all records that contain "aa"; it will only update records that have exactly "aa;bb;cc". I tried a: DELETE FROM tablex WHERE id NOT IN (SELECT id FROM tabley LEFT OUTER JOIN...)Good thing: It worksBad thing : It is SLLLOWWW when your table has a lot of records

  http://www.bennadel.com/blog/938-using-a-sql-join-in-a-sql-update-statement-thanks-john-eric.htm
OR GIVE ME A EXAMPLE TO KNOW HOW TO DOTHANK YOU VERY MUCH!! Dave Oct 27, 2009 at 9:50 PM 1 Comments Hi J.D,If you can join ECRPYHS and ECRHDHS, it should be easy to join PAYINFO as well. It doesn't happen all that often (most of my SQL is fairly simple), but every now and then someone shows me something that just rocks my world, whether it be the power of Indexing or just something as simple as using UNION ALL instead of UNION

SQL SELECT Statement

  http://www.w3schools.com/sql/sql_select.asp
Below is a selection from the "Customers" table: CustomerID CustomerName ContactName Address City PostalCode Country 1 Alfreds Futterkiste Maria Anders Obere Str

  http://oracle.ittoolbox.com/groups/technical-functional/oracle-dev-l/count-function-using-case-statement-in-sql-query-841539
No spaces please The Profile Name is already in use Password Notify me of new activity in this group: Real Time Daily Never Keep me informed of the latest: White Papers Newsletter Jobs By clicking "Join Now", you agree to Toolbox for Technology terms of use, and have read and understand our privacy policy. Simone Isabela replied Apr 16, 2010 For me this work very well: select dptno, sum (case when condition1 then 1 else 0 end ) as cnt1, sum (case when condition2 then 1 else 0 end ) as cnt2, sum (case when condition3 then 1 else 0 end ) as cnt3, from emp group by dptno Using sum like thanhtt says works fine

  http://blog.sqlauthority.com/2007/06/08/sql-server-insert-multiple-records-using-one-insert-statement-use-of-union-all/
you need to have one table that stores personal details, lets say TableA Another table that stores Test results, lets say TableB Another table that stores Medicines, lets Say TableC And one common key that joins these tables, meaning implementing one to many relation ship, by creating foreign key constraints on tables. On the same DB I m running another insert query using Union all to insert data in 11 columns this is taking 1 sec for 1000 records but other query which is inserting data in 20 columns taking 5 sec

  http://blog.sqlauthority.com/2007/07/17/sql-server-case-statement-in-order-by-clause-order-by-using-variable/
And it take around 3-4 second to load records But if i put fixed order by with direction then it will not 1 second so can you please help me to optimize my query. Fill in your details below or click an icon to log in: Email (required) (Address never made public) Name (required) Website You are commenting using your WordPress.com account