Original: Exception handling in T-SQL Programming-exception capture (try catch) and throw exception (throw)The source of this article: http://www.cnblogs.com/wy123/p/6743515.htmlT-SQL programming, like applications, has exception handling mechanisms,
SQL SERVER2012 implements a throw statement that resembles C # throws an exception. It is a small improvement to use the @ @ERROR before SQL Server2005, and to throw an exception after SQL Server2005 using RAISERROR ().1.SQL server2005/2008, use
SQL Server 2012 begins by introducing a throw clause to replace the RAISERROR that has been used since SQL Server. Since the function is the same, it is all in try ... What is the difference between catch code blocks that do not catch errors and
The Throw command does not have the exception severity parameter, the exception severity is always set to 16.Raises an exception and transfers execution to a CATCH block of a TRY ... CATCH construct in SQL Server 2012.[ {error_number |
Any error is called an exception. When an exception occurs, the execution unit must take control of the delivery. This is a process in which the meat Steamed Stuffed Bun hits the dog.PL/SQL engines treat system exceptions, user exceptions, or
Throw new exception
I have seen some people use throw new to participate in business logic in simple functions. For example, the following code:
Catch (exception ex){String error = ex. message;}
Public object dosomething (string username){Try{If (
The following code: {code...} generates the following SQL statement, and {code...} executes the preceding statement in PHP. No exception is thrown if an error occurs. If the pdo throw exception mode {code...} is enabled, the following error occurs
Throw out a function compared to the higher paging class (for php5.x)
Workaround
Fear level is not high, so never let go of any code, this class I have used for a long time, recently with object-oriented method rewrite, apply to php5.x, specially
First create a procedureAn exception is reported when the value entered is not between 0-100Create procproc_x@a int as begin if(@a0 or @a> -) RAISERROR('the passing line must be between 0~100 .', -,1) Else Select @aEndGoTo test,
Multiple update operations in a stored procedure, followed by an exception to the update operation, if you do not manually rollback the previously modified data is not automatically revoked! BEGINTRYBEGIN TRAN-- ..... COMMIT
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