【基础】常用数据库脚本

SQL Server数据库：

根据传入的参数进行查询并返回一个数据集

CREATE PROCEDURE mysp_para            @CityName varchar(255),            @Short    varchar(255)       AS         select * from AjaxCity where CityName=@CityName And Short=@Short       GO

 带有输出参数的存储过程(返回前两条记录的ID的和)：

CREATE PROCEDURE mysp_output       @SUM int  output AS       select @SUM=sum([ID]) from (select top 2 * from AjaxCity) as tmpTableGO

 

统计出各个地级市下面的县级市的个数,并组成一个字符串.结果应该是"5,2,2".：

CREATE PROCEDURE mysp_Cursor    @Result varchar(255) output//声明输出变量AS    declare city_cursor cursor for//声明游标变量    select [ID] from AjaxCityset @Result=''declare @Field int//声明临时存放CityID的变量open city_cursor //打开游标fetch next from city_cursor into @Field//将实际ID赋给变量while(@@fetch_status=0)//循环开始begin       if @Result = ''           select @Result = convert(nvarchar(2),count(*))  from AjaxCounty where CityID=@Field       else           select @Result = @Result + ',' + convert(nvarchar(2),count(*)) from AjaxCounty where CityID=@Field             fetch next from city_cursor into @Field//下一个CityIDendclose city_cursor//关闭游标deallocate city_cursor//释放游标引用GO

 。。