存储过程(Stored Procedure)是一组为了完成特定功能的SQL语句集,经编译后存储在数据库中,用户通过指定存储过程的名字并给定参数(如果该存储过程带有参数)来调用执行它。外部程序可以直接调用数据库里面定义好的存储过程,另外数据库内部的触发器(trigger)、或者其他存储过程也可以调用它。 存储过程的优点 (1)执行速度快:...
Execute a stored procedure: [ EXEC [ UTE ] ] { [ @return_status = ] { procedure_name [ ;number ] | @procedure_name_var } [ [ @parameter = ] { value | @variable [ OUTPUT ] | [ DEFAULT ] } ] [ ,...n ] [ WITH RECOMPILE ] [;] Execute a character string: EXEC [...
A procedure can have a maximum of 2100 parameters; each assigned a name, data type, and direction. Optionally, parameters can be assigned default values.The following section provides information about passing values into parameters and about how each of the parameter attributes is used during a ...
A procedure can have a maximum of 2100 parameters; each assigned a name, data type, and direction. Optionally, parameters can be assigned default values.The following section provides information about passing values into parameters and about how each of the parameter attributes is used during a ...
Learn how a stored procedure in SQL Server is a group of one or more Transact-SQL statements or a reference to a .NET Framework common runtime language method.
The default stored procedure template has two parameters. If your stored procedure has fewer, more, or no parameters, add or remove parameter lines in the template as appropriate. On theQuerymenu, selectSpecify Values for Template Parameters. ...
Insert into chatdata (mycola,mycolb,mycolc) values(@mycola,@mycolb,@mycolc) 在Sql Server的文档中它的语法为: CREATE PROC[EDURE] procedure_name [;number] [ {@parameter data_type} [VARYING] [= default] [OUTPUT] ] [,...n] [WITH { RECOMPILE | ENCRYPTION ...
-- Execute a stored procedure or function [ { EXEC | EXECUTE } ] { [ @return_status = ] { module_name [ ;number ] | @module_name_var } [ [ @parameter = ] { value | @variable [ OUTPUT ] | [ DEFAULT ] } ] [ ,...n ] [ WITH <execute_option> [ ,...n ] ] } [ ;...
// SQLBindParameter_Function_2.cpp// compile with: ODBC32.lib// sample assumes the following stored procedure:// use northwind// DROP PROCEDURE SQLBindParameter// GO/// CREATE PROCEDURE SQLBindParameter @quote int// AS// delete from orders where OrderID >= @quote// GO#include<windows.h...
如果未以@parameter = value格式传递参数值,则必须按 CREATE PROCEDURE 语句中所列的参数顺序(从左到右)提供值。 最好指定参数名称,以便提高可读性和与存储过程的未来版本的兼容性。 警告 任何采用@parameter = value格式传入的参数如果拼写错误,就会导致 SQL Server 生成错误,并阻止过程执行。