Questions On Sql Server

What is difference between SUBSTR and INSTR in the SQL? affix by: Tripati_tutu The SUBSTR king returns a specific portion of a string ideal: SUBSTR(DotNetFunda,6) The root entrusting be: DotNet The INSTR function provides character piazza in a pattern of string. congressman: INSTR(Dot-Net-Funda,-,2) The result will be: 8 (2nd occurrence of -) What is a Database Transactiveness? stick on by: Tripati_tutu A Database Transaction is a logical social unit of database operations and a unit of work in database perplexity system. These be highly important to use achievements when workings with databases. In this the SQL statement is treated as a transaction and will be automatically committed immediately later it is successfully executed. For this successful transaction that is from begin to end transaction, it follows the boundary corrosive (Atomicity, Consistency, Isolation, Durability). To implement Database Transaction we have to follow the pastime stairs i.e. beginTransaction(); setTransactionSuccessful(); endTransaction(); What is misapprehension handling in stored procedures of SQL Server 2008? Posted by: Tripati_tutu In previous versions of SQL Server you would handle censures by checking the @@ defect global variable immediately after an INSERT, modify or DELETE, and then perform some corrective action if @@error did not equal zero.

SQL Server 2005 provides structured exception handing through with(predicate) TRY CATCH block as early(a) schedule language like JAVA, C# etc. Example: make TRY RAISERROR (A caper is raised, 16,1) END TRY BEGIN CATCH SELECT E! RROR_NUMBER() as ERROR_NUMBER, ERROR_SEVERITY() as ERROR_SEVERITY, ERROR_STATE() as ERROR_STATE, ERROR_MESSAGE() as ERROR_MESSAGE END CATCH ERROR_NUMBER() returns the number of the errors. ERROR_SEVERITY() returns the severity. ERROR_STATE() returns the error state number. ERROR_PROCEDURE() returns the crap of the stored procedure or trigger where the error occurred....If you want to bum around a full essay, order it on our website: OrderCustomPaper.com

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