我之所以没有立即指出,是因为这是一个很容易犯的错误,尤其是习惯了.NET Exception Handling的人更容易犯这样的错误。我们知道在.NET Application中,如果出现一个未处理的Exception,程序将立即终止,后续的程序将不会执行,但是对于上面的SQL则不一样,虽然我们通过RAISERROR将Error抛出,但是SQL的指定并不会被终止,INSERT...
我之所以没有立即指出,是因为这是一个很容易犯的错误,尤其是习惯了.NET Exception Handling的人更容易犯这样的错误。我们知道在.NET Application中,如果出现一个未处理的Exception,程序将立即终止,后续的程序将不会执行,但是对于上面的SQL则不一样,虽然我们通过RAISERROR将Error抛出,但是SQL的指定并不会被终止,INSERT...
If we are not clear about the basics of Exception handling in Sql Server, then it is the most complex/confusing task, it will become nightmarish job to identify the actual error and the root cause of the unexpected results. In this blog post I will try to make sure that all the ...
The MSSQL server supports multiple result sets as output of a stored procedure. However, if an exception occurs on the SQL side after the first result set is generated, no exceptions are generated on the client side in the pymssql code. To Reproduce Create the following stored procedure on M...
By default, any error encountered in a PL/SQL program stops execution of the program. You can trap and recover from errors by using an EXCEPTION section.
ADO.NET Exception Handling SqlException InfoMessage 一、@@ERROR @@ERROR是我们经常使用的系统函数,其返回类型为INT,用以表示上一个语句的执行是否遇到错误,0便是语句正常执行,非0则以为着某个错误的产生。比如下面的一个例子:我在SQL Server Management Studio中执行下面一段简单的SQL: ...
Every exception has an error code and an error message associated with it. Oracle Database provides functions for retrieving these values when you are handling an exception (seeTable 1). Table 1:Where to find error information in PL/SQL applications. ...
在这篇文章中,我将会介绍我对于基于Database编程中Exception Handling的一些粗浅的认识:在编写Stored Procedure时,如何抛出一个可预知的Exception,ADO.NET如何处理从Database抛出的Exception,如何保存基于Database Exception的Error Message,如何在Database和.NET Application之间进行消息的传递[注:这里的Database主要指SQL ...
在SQL Server中我们通过BEGIN TRY/END TRY和BEGIN CATCH/END CATCH这样的结构来进行Exception Handling。 通过TRY CATCH,上面的Stored procedure可以改成下面的样子: CREATE Procedure P_USERS_IN_ROLES_I ( @user_name NVARCHAR(256), @role_name NVARCHAR(256) ) AS DECLARE @user_id VARCHAR(50) DECLARE @...
Now that you have an understanding of the nature of errors and basic error handling in T-SQL, it's time to look at a more advanced form of error handling. Structured exception handling was introduced in SQL Server 2005.Here, you'll see how to use it and evaluate its benefits...