TRY…CATCH 构造可以是嵌套式的。这意味着可以将 TRY…CATCH 构造放置在其他 TRY 块和 CATCH 块内。当嵌套的 TRY 块中出现错误时,程序控制将传递到与嵌套的 TRY 块关联的 CATCH 块。 若要处理给定的 CATCH 块中出现的错误,请在指定的 CATCH 块中编写 TRY...CATCH 块。 TRY...CATCH 块
SQL Server 流程控制中的 Try...Catch 语句。 1,Try...Catch 语句 1--===2--1,Try..Catch语句(Sql 2005及以上支持)3--Desc:Try...Catch语句类似于C#或C++语句中的异常处理,当Try语法块中的代码出现错误时4--,系统会将控制传给Catch语法块去处理。5--author:ylbtech6--pubdate:10:39 2012/12/177-...
Transact-SQL 代码中的错误可使用 TRY…CATCH 构造处理,此功能类似于 Microsoft Visual C++ 和 Microsoft Visual C# 语言的异常处理功能。TRY…CATCH 构造包括两部分:一个 TRY 块和一个 CATCH 块。如果在 TRY 块内的 Transact-SQL 语句中检测到错误条件,则控制将被传递到 CATCH 块(可在此块中处理此错误)。
syntaxsql 複製 BEGIN TRY { sql_statement | statement_block } END TRY BEGIN CATCH [ { sql_statement | statement_block } ] END CATCH [ ; ] 引數 sql_statement 任何Transact-SQL 語句。 statement_block 批次中或以區塊括住 BEGIN...END 的任何 Transact-SQL 語句群組。 備註 建TRY...CATCH 構...
syntaxsql 复制 BEGIN TRY { sql_statement | statement_block } END TRY BEGIN CATCH [ { sql_statement | statement_block } ] END CATCH [ ; ] 参数 sql_statement 任何Transact-SQL 语句。 statement_block 批处理中的任何一组 Transact-SQL 语句或包含在块 BEGIN...END 中。 注解 TRY...CATCH构造...
Including any other statements between the END TRY and BEGIN CATCH statements generates a syntax error.A TRY...CATCH construct cannot span multiple batches. A TRY...CATCH construct cannot span multiple blocks of Transact-SQL statements. For example, a TRY...CATCH construct cannot span two BEGIN...
The following types of errors are not handled by a CATCH block when they occur at the same level of execution as the TRY…CATCH construct: Compile errors, such as syntax errors, that prevent a batch from running. Errors that occur during statement-level recompilation, such as object name re...
BEGIN TRY SELECT * FROM sys.messages WHERE message_id = 21; END TRY GO -- The previous GO breaks the script into two batches, -- generating syntax errors. The script runs if this GO -- is removed. BEGIN CATCH SELECT ERROR_NUMBER() AS ErrorNumber; END CATCH; GO ...
BEGIN TRY SELECT * FROM sys.messages WHERE message_id = 21; END TRY GO -- The previous GO breaks the script into two batches, -- generating syntax errors. The script runs if this GO -- is removed. BEGIN CATCH SELECT ERROR_NUMBER() AS ErrorNumber; END CATCH; GO ...
錯誤處理 TRY...CATCH 模糊化程序定義 WITH ENCRYPTION 強制程序重新編譯 WITH RECOMPILE 設定安全性內容 EXECUTE AS 基本語法 本節的範例使用所需的最少語法示範 CREATE PROCEDURE 陳述式的基本功能。 A. 建立 Transact-SQL 程序 下列範例會建立預存程式,從 AdventureWorks2022 資料庫中的檢視傳回所有員工(名字和姓...