sql存储过程的创建

一：没有参数的存储过程

CREATE PROCEDURE  select_all
AS
BEGIN
    SELECT * from T_login1
END
GO

二：带参数的存储过程

CREATE PROCEDURE select_name
    
    @id uniqueidentifier
AS
BEGIN
    SELECT * from T_login1 where PSN0001A=@id
END
GO

三：带通配符参数存储过程

alter proc proc_findStudentByName
            @name nvarchar(10)='F%'
as
    select * from T_login1 where PSN0001A like @name 
go


exec proc_findStudentByName 'F%'

 四：带默认值的参数的存储过程

create proc sele_name
@name nvarchar(10)='hong3'
as
select * from T_login1 where PSN0002A=@name


exec sele_name 'lk'
exec  sele_name

 五：带输出参数的存储过程

create proc [dbo].[p_selectName]

@name nvarchar(10),
@num int output
as
select @num=COUNT(PSN0001A) from T_login1 where PSN0002A=@name


declare @num int 
exec p_selectName 'lk',@num output
print @num



declare @num1 int 
exec p_selectName @name='lk',@num=@num1 output
print @num1

 六：临时存储过程

create proc #p_selectName2
as
select COUNT(PSN0001A) from T_login1 where PSN0002A='lk'


exec #p_selectName2

七：存储过程的嵌套

alter proc #p_selectName2
as
select COUNT(PSN0001A) from T_login1 where PSN0002A='lk'
exec sele_name


exec #p_selectName2

 八：不缓存的存储过程

 if (object_id('proc_temp', 'P') is not null)
     drop proc proc_temp1--如果存在不为空，释放掉
 go
 create proc proc_temp1
 with recompile
 as
     select * from T_login1
 go
 
 exec proc_temp1;

九：加密存储过程（无法查看存储过程的代码）

if (object_id('proc_temp_encryption', 'P') is not 
null)
    drop proc proc_temp_encryption
go
create proc proc_temp_encryption
with encryption
as
    select * from T_login1;
go

exec proc_temp_encryption;
exec sp_helptext 'proc_temp1';
exec sp_helptext 'proc_temp_encryption';

 十：存储过程中使用if......else

CREATE PROCEDURE pro_numToName
    @num int ,
    @str nvarchar(5) output
AS
    if @num=11
    begin
    set @str='wang'
    end
    else
    begin
    set @str='qita'
    end