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...
set quoted_identifier on; set ansi_nulls on; go create function [dbo].[Get_StrArrayStrOfIndex] ( @str NVarchar(max) , --要分割的字符串 @split NVarchar(10) , --分隔符号 @index Int --取第几个元素 ) returns NVarchar(max) as begin declare @location Int; declare @start Int; declare ...
class="lang:tsql decode:true">declare @prefixnvarchar(10)='095-0021-';declare @serialLength int=4;declare @remainedLength int=1;--1,直接传值,速度很快 select*from[dbo].[f_getPartSerialNo]('095-0021-',4,1)--2,传变量,速度超慢 select*from[dbo].[f_getPartSerialNo](@prefix,@serialLe...
DROP FUNCTION dbo.scalar_valued_functions; --创建多参数标量函数, CREATE FUNCTION scalar_valued_functions(@in varchar(128), @var2 VARCHAR(128)) RETURNS VARCHAR(128) AS BEGIN DECLARE @out VARCHAR(128) SELECT @out=column_two,@var2=column_three FROM test WHERE column_one=@in RETURN @out+@...
CREATE FUNCTION Fmax (@x int,@y int) RETURNS int AS BEGIN DECLARE @Z INT IF @X>@Y SET @Z=@X ELSE SET @Z=@Y RETURN(@Z) END SELECT DBO.fMAX(1,2) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 样例二 编写函数Fc,参数为两个整数和一个运算符(+,-,*,/),计算其结...
CREATE FUNCTION Foo(@a int ) --传入了一个int类型的参数 RETURNS int --注意这里返回的是一个数据类型 AS BEGIN declare @b int set @b = 3 return @a + @b END 1. 2. 3. 4. 5. 6. 7. 8. 然后到查询分析器里code select dbo.foo(2) ...
ANSI_WARNINGS isn't honored when you pass parameters in a stored procedure, user-defined function, or when you declare and set variables in a batch statement. For example, if a variable is defined as char(3), and then set to a value larger than three characters, the data is truncated ...
使用CREATE FUNCTION语句创建函数,并指定函数的名称、参数、返回类型和函数体。例如: CREATE FUNCTION dbo.MyFunction (@param1 INT, @param2 INT) RETURNS INT AS BEGIN DECLARE @result INT; SET @result = @param1 + @param2; RETURN @result; END; 复制代码 使用ALTER FUNCTION语句修改已存在的函数的定义...
CONTAINSTABLE | CONTINUE | CONVERT | CREATE | CROSS | CURRENT CURRENT_DATE | CURRENT_TIME | CURRENT_TIMESTAMP | CURRENT_USER CURSOR DATABASE | DBCC | DEALLOCATE | DECLARE | DEFAULT | DELETE | DENY DESC | DISK | DISTINCT | DISTRIBUTED | DOUBLE | DROP | DUMP ELSE | END | ERRLVL | ...
DECLARE @I INT 变量的赋值: 变量赋值时变量前必须加set SET @I = 30 声明多个变量: DECLARE @s varchar(10),@a INT if语句: if .. begin ... end else if .. begin ... end else begin ... end Example: DECLARE @d INT set @d = 1 ...