mysql>DELIMITER//mysql>CREATEPROCEDUREdemo_out_parameter(OUT p_outint)->BEGIN->SELECTp_out;->SETp_out=2;->SELECTp_out;->END;->//mysql>DELIMITER ; 执行结果: mysql>SET@p_out=1; mysql>CALL sp_demo_out_parameter(@p_out)
N'P')ISNOTNULLDROPprocedurePROC_SELECT_STUDENTS_BY_NAME;GOCREATEprocedurePROC_SELECT_STUDENTS_BY_NAME@namenvarchar(50),--输入参数@citynvarchar(20) out,--输出参数@ageintoutput--输入输出参数ASSELECT@city=City,@age=AgeFROMStudentsWHEREName=@nameANDAge=@ageGO ...
其中,stored_procedure_name是需要查询的 Stored Procedure 的名称。 2.2. 使用系统视图sys.sql_modules 系统视图sys.sql_modules存储了数据库中的所有对象的定义,包括 Stored Procedure。我们可以通过查询sys.sql_modules来获取 Stored Procedure 的定义。 -- 使用 sys.sql_modules 查询 Stored Procedure 的定义SELECTde...
drop procedure 存储过程名; 调用存储过程 call 存储过程名(参数) 代码案例: -- 删除存储过程 drop procedure if exists pd_select_student; -- 定义无参的存储过程 delimiter // create procedure pd_select_student() begin select * from tb_student; end// delimiter ; -- 调用存储过程 call pd_select_...
CREATEPROCEDURESelectAllCustomers AS SELECT*FROMCustomers GO; Execute the stored procedure above as follows: Example EXECSelectAllCustomers; Stored Procedure With One Parameter The following SQL statement creates a stored procedure that selects Customers from a particular City from the "Customers" table:...
问SQL选择多个值StoredProcedureEN<form id="form" name="form" method="post" action="/temp/test9...
create procedure usp_getName @rdID char(9), @rdNmae varchar(20) output as select @rdNmae=rdName from Reader where rdID=@rdID --测试执行 declare @rdNmae varchar(20) exec usp_getName'rd2018007',@rdNmae output print @rdNmae 1. ...
StoredProcedure:生成 SQLServer 存储过程对象和(可选)包含用于创建存储过程的查询的 .sql 文件。 StoredProcedure$registrationVec 包含表示创建存储过程所需的查询的字符串 用法 StoredProcedure (func, spName, ..., filePath = NULL ,dbName = NULL, connectionString = NULL, batchSeparator = "GO") ...
UnderPass Null Value, select whether to pass a NULL as the value of the parameter. SelectOKto execute the stored procedure. If the stored procedure doesn't have any parameters, just selectOK. The stored procedure runs, and results appear in theResultspane. ...
CREATE PROCEDURE [dbo].[Customers By City] -- Add the parameters for the stored procedure here (@param1 NVARCHAR(20))ASBEGIN -- SET NOCOUNT ON added to prevent extra result sets from -- interfering with SELECT statements. SET NOCOUNT ON; SELECT CustomerID, ContactName, CompanyName, City ...