-- 第一步:创建函数-- 创建一个名为 'GetSum' 的函数,它接受两个整数类型的参数并返回它们的和CREATEFUNCTIONdbo.GetSum(@num1INT,-- 第一个输入参数@num2INT-- 第二个输入参数)RETURNSINT-- 返回值类型ASBEGINDECLARE@resultINT;-- 声明一个变量用于存储结果-- 计算和SET@r
3 CREATE FUNCTION F_GONGHAO(@XINGMING NVARCHAR(5)) 4 RETURNS INT 5 AS 6 BEGIN 7 DECLARE @GONGHAO INT 8 SET @GONGHAO =(SELECT Y.工号 FROM[T_员工信息] AS Y WHERE Y.姓名 =@XINGMING ) 9 RETURN @GONGHAO 10 END 11 GO 12 /*上面是标量函数的一个简单的例举,下面就开始调用,注意是在d...
一.FUNCTION: 在sqlserver2008中有3中自定义函数:标量函数/内联表值函数/多语句表值函数,首先总结下他们语法的异同点: 同点:1.创建定义是一样的: a, CREATE FUNCTION F_NAME(传入的参数名称 传入参数的类型) b,RETURNS 返回值类型 c,AS 异点:1.标量函数返回的是一个数据类型值,内联表值函数返回的是一个t...
Create Function 函数名(参数) RETURNS 表变量名 ( 表变量字段定义 )[with {Encryption|Schemabinding}] AS BEGIN SQL 语句 Return END 举例: *** CREATE FUNCTION func(@selection int) RETURNS @table TABLE ( SID char(4) primary key not null, SName nvarchar(4) null ) AS BEGIN IF @selection = 0...
CREATE[ORALTER]FUNCTION[schema_name. ]function_name( [ { @parameter_name[AS] [type_schema_name. ]parameter_data_type[NULL] [ = default ] [READONLY] } [ , ...n ] ] )RETURNS@return_variableTABLE[WITH<function_option>[ , ...n ] ] [AS]BEGINfunction_bodyRETURNEND[ ; ] Syntax ...
CREATE [ OR ALTER ] FUNCTION [ schema_name. ] function_name ( [ { @parameter_name [ AS ] [ type_schema_name. ] parameter_data_type [ NULL ] [ = default ] [ READONLY ] } [ , ...n ] ] ) RETURNS return_data_type [ WITH <function_option> [ , ...n ] ] [ AS ] BEGIN...
CREATE [ OR ALTER ] FUNCTION [ schema_name. ] function_name ( [ { @parameter_name [ AS ] [ type_schema_name. ] parameter_data_type [ NULL ] [ = default ] [ READONLY ] } [ , ...n ] ] ) RETURNS return_data_type [ WITH <function_option> [ , ...n ] ] [ AS ] BEGIN...
> CREATE FUNCTION square(x DOUBLE) RETURNS DOUBLE RETURN area(x, x); > SELECT c1, square(c1) AS square FROM t; 0 0.0 1 1.0 -- Create a non-deterministic function > CREATE FUNCTION roll_dice() RETURNS INT NOT DETERMINISTIC CONTAINS SQL COMMENT 'Roll a single 6 sided die' RETURN (ran...
-- Transact-SQL Scalar Function SyntaxCREATE[ORALTER]FUNCTION[schema_name. ]function_name( [ { @parameter_name[AS][type_schema_name. ]parameter_data_type[NULL] [ = default ] [READONLY] } [ ,...n ] ] )RETURNSreturn_data_type[WITH<function_option>[ ,...n ] ] [AS]BEGINfunction...
在SQL Server 中,通过CREATE FUNCTION语句来创建函数。下面是一个示例代码,用于创建一个简单的函数,计算两个数字的和: -- 创建函数CREATEFUNCTIONdbo.AddNumbers(@num1INT,@num2INT)RETURNSINTASBEGINDECLARE@resultINT;SET@result=@num1+@num2;RETURN@result;END; ...