比如:我们需要编写一个添加User的Stored procedure,user name具有唯一性,添加一个和database中同名的user显然是不合法的,在很多情况下通过一个Output参数来返回操作最终执行的情况,比如: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 CREATEProcedureP_USERS_I(@user_idvarchar(50),@user_namenvarchar(256),@...
谈谈基于SQL Server 的Exception Handling[中篇] 三、TRY CATCH & Return 在上面一节中,我通过RAISERROR重写了创建User的Stored procedure,实际上上面的Stored procedure是有问题的。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 Ap...
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...
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 Ser...
SQL Server provides TRY and CATCH blocks for exception handling. Exception Handling in SQL Server An error condition during program execution is called an exception, and the mechanism for resolving such an exception is known as exception handling. We can put all T-SQL statements into a TRY ...
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 ...
上面的所以内容都围绕一个Exception handling的主题,在文章最后一部分我们想想一个和非Exception handling但是又和上面的内容很相关的主题:在Database通过Print语句输出的Message如何向Application传递。 在上面的例子中,有一个P_CLEAR_DATA的stored procedure,用于数据的清理。在操作结束后,有一个Print语句(PRINT ('All ...
In JDBC, we may get exceptions when we execute or create the query. Exceptions that occur due to the Database or Driver come under SQL Exception. Using Exception handling, we can handle the SQL Exception like we handle the normal exception. ...
Naveen covered the TSQL exception handling in his posts. How does the TSQL exception handling mechanism interacts with SQLCLR exception handling mechanism? We will cover this topic in this post. When SQL server execute a user function/procedure/trigger implemented in CLR (i.e., managed code), ...
The concept and practice of exception handling in SQL Server is not novel instead statements such as RAISERROR and the TRY/CATCH block has been influential in re-throwing exceptions back to calling applications such as SQL Server Integration Services. The introduction of the THROW statement in SQL...