三种SQL分页查询的存储过程

 

--根据MAX(MIN)ID

CREATE PROC [dbo].[proc_select_id]

@pageindex int=1,--当前页数

@pagesize int=10,--每页大小

@tablename VARCHAR(50)='',--表名

@fields VARCHAR(1000)='',--查询的字段集合

@keyid VARCHAR(50)='',--主键

@condition NVARCHAR(1000)='',--查询条件

@orderstr VARCHAR(500),--排序条件

@totalRecord BIGINT OUTPUT--总记录数

AS

    IF ISNULL(@orderstr,N'')=N'' SET @orderstr=N' ORDER BY '+@keyid+N' DESC '

    IF ISNULL(@fields,N'')=N'' SET @fields=N'*'

    IF ISNULL(@condition,N'')=N'' SET @condition=N'1=1'

    DECLARE @sql NVARCHAR(4000)

    --IF(@totalRecord IS NULL)

    --BEGIN

        SET @sql=N'SELECT @totalRecord=COUNT(*)'

            +N' FROM '+@tablename

            +N' WHERE '+@condition

        EXEC sp_executesql @sql,N'@totalRecord INT OUTPUT',@totalRecord OUTPUT

    --END

    IF(@pageindex=1)

    BEGIN

        SET @sql=N'SELECT TOP '+STR(@pagesize)+N' '+@fields+N' FROM '+@tablename+N' WHERE '+@condition+N' '+@orderstr

        EXEC(@sql)

    END

    ELSE

    BEGIN

        DECLARE @operatestr CHAR(3),@comparestr CHAR(1)

        SET @operatestr='MAX'

        SET @comparestr='>'

        IF(@orderstr<>'')

        BEGIN

            IF(CHARINDEX('desc',LOWER(@orderstr))<>0)

            BEGIN

                SET @operatestr='MIN'

                SET @comparestr='<'

            END

        END

        SET @sql=N'SELECT top '+STR(@pagesize)+N' '+@fields+N' FROM '+@tablename+N' WHERE '+@keyid+@comparestr

            +N'(SELECT '+@operatestr+N'('+@keyid+N') FROM '+@tablename+N' WHERE '+@keyid

            +N' IN (SELECT TOP '+STR((@pageindex-1)*@pagesize)+N' '+@keyid+N' FROM '+@tablename+N' WHERE '

            +@condition+N' '+@orderstr+N')) AND '+@condition+N' '+@orderstr

        EXEC(@sql)

    END

GO

  

  

--根据ROW_NUMBER() OVER

CREATE PROC [dbo].[proc_select_page_row]

@pageindex INT=1,--当前页数

@pagesize INT=10,--每页大小

@tablename VARCHAR(50)='',--表名

@fields VARCHAR(1000)='*',--查询的字段集合

@keyid VARCHAR(50)='',--主键

@condition NVARCHAR(1000)='',--查询条件

@orderstr VARCHAR(500),--排序条件

@totalRecord BIGINT  OUTPUT--总记录数

AS

    IF ISNULL(@orderstr,N'')=N'' SET @orderstr=N' ORDER BY '+@keyid+N' DESC '

    IF ISNULL(@fields,N'')=N'' SET @fields=N'*'

    IF ISNULL(@condition,N'')=N'' SET @condition=N'1=1'

    DECLARE @sql NVARCHAR(4000)

--  IF @totalRecord IS NULL

--  BEGIN

        SET @sql=N'SELECT @totalRecord=COUNT(*)'

            +N' FROM '+@tablename

            +N' WHERE '+@condition

        EXEC sp_executesql @sql,N'@totalRecord bigint OUTPUT',@totalRecord OUTPUT

--END

    IF(@pageindex=1)

    BEGIN

        SET @sql=N'SELECT TOP '+STR(@pagesize)+N' '+@fields+N' FROM '+@tablename+N' WHERE '+@condition+N' '+@orderstr

        EXEC(@sql)

    END

    ELSE

    BEGIN

        DECLARE @StartRecord INT

        SET @StartRecord = (@pageindex-1)*@pagesize + 1

        SET @sql=N'SELECT * FROM (SELECT ROW_NUMBER() OVER ('+ @orderstr +N') AS rowId,'+@fields+N' FROM '+ @tablename+N') AS T WHERE rowId>='+STR(@StartRecord)+N' and rowId<='+STR(@StartRecord + @pagesize - 1)

        EXEC(@sql)

    END

GO

  

  

--根据TOP ID

CREATE PROC [dbo].[proc_select_page_top]

@pageindex INT=1,--当前页数

@pagesize INT=10,--每页大小

@tablename VARCHAR(50)='',--表名

@fields VARCHAR(1000)='',--查询的字段集合

@keyid VARCHAR(50)='',--主键

@condition NVARCHAR(1000)='',--查询条件

@orderstr VARCHAR(500),--排序条件

@totalRecord BIGINT OUTPUT--总记录数

AS

    IF ISNULL(@orderstr,N'')=N'' SET @orderstr=N' ORDER BY '+@keyid+N' DESC '

    IF ISNULL(@fields,N'')=N'' SET @fields=N'*'

    IF ISNULL(@condition,N'')=N'' SET @condition=N'1=1'

    DECLARE @sql NVARCHAR(4000)

    --IF(@totalRecord IS NULL)

    --BEGIN

        SET @sql=N'SELECT @totalRecord=COUNT(*)'

            +N' FROM '+@tablename

            +N' WHERE '+@condition

        EXEC sp_executesql @sql,N'@totalRecord INT OUTPUT',@totalRecord OUTPUT

    --END

    IF(@pageindex=1)

    BEGIN

        SET @sql=N'SELECT TOP '+STR(@pagesize)+N' '+@fields+N' FROM '+@tablename+N' WHERE '+@condition+N' '+@orderstr

        EXEC(@sql)

    END

    ELSE

    BEGIN

        SET @sql=N'SELECT TOP '+STR(@pagesize)+N' '+@fields+N' FROM '+@tablename+N' WHERE  '+@keyid

        +N' NOT IN(SELECT TOP '+STR((@pageindex-1)*@pagesize)+N' '+@keyid+N' FROM '

        +@tablename+N' WHERE '+@condition+N' '+@orderstr+N') AND '+@condition+N' '+@orderstr

        EXEC(@sql)

    END

GO