Questions On Sql Server

What is difference between SUBSTR and INSTR in the SQL? affix by: Tripati_tutu The SUBSTR causality returns a specific portion of a string font: SUBSTR(DotNetFunda,6) The root go outing be: DotNet The INSTR function provides character pip in a pattern of string. event: INSTR(Dot-Net-Funda,-,2) The result will be: 8 (2nd occurrence of -) What is a Database Trans save? stick on by: Tripati_tutu A Database Transaction is a logical unit of measurement of database operations and a unit of work in database vigilance system. These be highly important to use works when work with databases. In this the SQL statement is treated as a transaction and will be automatically committed immediately after(prenominal) it is successfully executed. For this successful transaction that is from begin to end transaction, it follows the enclosure corrosive (Atomicity, Consistency, Isolation, Durability). To implement Database Transaction we have to follow the pursuance 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 other(a) schedule language like JAVA, C# etc. Example: get under ones skin TRY RAISERROR (A c aper is raised, 16,1) END TRY BEGIN CA! TCH SELECT ERROR_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 pull of the stored procedure or trigger where the error occurred....If you want to hang around around a full essay, order it on our website: OrderCustomPaper.com

If you want to get a full essay, visit our page: write my paper