说明:1.支持多表查询 2. 支持任意排序 3. 不支持表别名 参考了
IF ( EXISTS ( SELECT * FROM sysobjects WHERE [id] = OBJECT_ID('usp_PagingLarge') AND xtype = 'P' ) ) DROP PROCEDURE usp_PagingLarge * / GO CREATE PROCEDURE usp_PagingLarge @TableNames VARCHAR(200), --表名,可以是多个表,但不能用别名 @PrimaryKey VARCHAR(100), --主键,可以为空,但@Order为空时该值不能为空 @Fields VARCHAR(200), --要取出的字段,可以是多个表的字段,可以为空,为空表示select * @PageSize INT, --每页记录数 @CurrentPage INT, --当前页,0表示第1页 @Filter VARCHAR(200) = '', --条件,可以为空,不用填 where @Group VARCHAR(200) = '', --分组依据,可以为空,不用填 group by @Order VARCHAR(200) = '' --排序,可以为空,为空默认按主键升序排列,不用填 order by AS BEGIN DECLARE @SortColumn VARCHAR(200) DECLARE @Operator CHAR(2) DECLARE @SortTable VARCHAR(200) DECLARE @SortName VARCHAR(200) IF @Fields = '' SET @Fields = '*' IF @Filter = '' SET @Filter = 'WHERE 1=1' ELSE SET @Filter = 'WHERE ' + @Filter IF @Group <> '' SET @Group = 'GROUP BY ' + @Group IF @Order <> '' BEGIN DECLARE @pos1 INT, @pos2 INT SET @Order = REPLACE(REPLACE(@Order, ' asc', ' ASC'), ' desc', ' DESC') IF CHARINDEX(' DESC', @Order) > 0 IF CHARINDEX(' ASC', @Order) > 0 BEGIN IF CHARINDEX(' DESC', @Order) < CHARINDEX(' ASC', @Order) SET @Operator = '<=' ELSE SET @Operator = '>=' END ELSE SET @Operator = '<=' ELSE SET @Operator = '>=' SET @SortColumn = REPLACE(REPLACE(REPLACE(@Order, ' ASC', ''), ' DESC', ''), ' ', '') SET @pos1 = CHARINDEX(',', @SortColumn) IF @pos1 > 0 SET @SortColumn = SUBSTRING(@SortColumn, 1, @pos1 - 1) SET @pos2 = CHARINDEX('.', @SortColumn) IF @pos2 > 0 BEGIN SET @SortTable = SUBSTRING(@SortColumn, 1, @pos2 - 1) IF @pos1 > 0 SET @SortName = SUBSTRING(@SortColumn, @pos2 + 1, @pos1 - @pos2 - 1) ELSE SET @SortName = SUBSTRING(@SortColumn, @pos2 + 1, LEN(@SortColumn) - @pos2) END ELSE BEGIN SET @SortTable = @TableNames SET @SortName = @SortColumn END END ELSE BEGIN SET @SortColumn = @PrimaryKey SET @SortTable = @TableNames SET @SortName = @SortColumn SET @Order = @SortColumn SET @Operator = '>=' END DECLARE @type VARCHAR(50) DECLARE @prec INT SELECT @type = t.NAME, @prec = c.prec FROM sysobjects o JOIN syscolumns c ON o.id = c.id JOIN systypes t ON c.xusertype = t.xusertype WHERE o.NAME = @SortTable AND c.NAME = @SortName IF CHARINDEX('char', @type) > 0 SET @type = @type + '(' + CAST(@prec AS VARCHAR) + ')' DECLARE @TopRows INT SET @TopRows = @PageSize * @CurrentPage + 1 PRINT @TopRows PRINT @Operator EXEC ( ' DECLARE @SortColumnBegin ' + @type + ' SET ROWCOUNT ' + @TopRows + ' SELECT @SortColumnBegin=' + @SortColumn + ' FROM ' + @TableNames + ' ' + @Filter + ' ' + @Group + ' ORDER BY ' + @Order + ' SET ROWCOUNT ' + @PageSize + ' SELECT ' + @Fields + ' FROM ' + @TableNames + ' ' + @Filter + ' AND ' + @SortColumn + '' + @Operator + '@SortColumnBegin ' + @Group + ' ORDER BY ' + @Order + ' ' ) END GO
–调用例子:
--1.单表/单排序 EXEC usp_PagingLarge 'bigtable', 'd_id', 'd_id,d_title,d_content,d_time', 20, 1, '', '', 'd_id desc' --2.单表/多排序 EXEC usp_PagingLarge 'bigtable', 'd_id', '*', 20, 0, '', '', 'd_time asc,d_id desc' --3.多表/单排序 EXEC usp_PagingLarge 'bigtable left join bigtable_author on bigtable.d_id=bigtable_author.BigTable_id', 'bigtable.d_id', 'bigtable.d_id,bigtable.d_title,bigtable.d_content,bigtable.d_time,bigtable_author.d_author', 20, 0, '', '', 'bigtable.d_id asc' --4.多表/多排序 EXEC usp_PagingLarge 'bigtable left join bigtable_author on bigtable.d_id=bigtable_author.BigTable_id', 'bigtable.d_id', 'bigtable.d_id,bigtable.d_title,bigtable.d_content,bigtable.d_time,bigtable_author.d_author', 20, 0, '', '', 'bigtable.d_time asc,bigtable.d_id desc'
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