三种SQL分页查询的存储过程
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三种SQL分页查询的存储过程
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| --根據MAX(MIN)ID CREATE PROC [dbo].[proc_select_id] @pageindex int=1,--當前頁數 @pagesize int=10,--每頁大小 @tablename VARCHAR(50)='',--表名 @fields VARCHAR(1000)='',--查詢的字段集合 @keyid VARCHAR(50)='',--主鍵 @condition NVARCHAR(1000)='',--查詢條件 @orderstr VARCHAR(500),--排序條件 @totalRecord BIGINT OUTPUT--總記錄數 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 ?? ?? --根據ROW_NUMBER() OVER CREATE PROC [dbo].[proc_select_page_row] @pageindex INT=1,--當前頁數 @pagesize INT=10,--每頁大小 @tablename VARCHAR(50)='',--表名 @fields VARCHAR(1000)='*',--查詢的字段集合 @keyid VARCHAR(50)='',--主鍵 @condition NVARCHAR(1000)='',--查詢條件 @orderstr VARCHAR(500),--排序條件 @totalRecord BIGINT? OUTPUT--總記錄數 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 ?? ?? --根據TOP ID CREATE PROC [dbo].[proc_select_page_top] @pageindex INT=1,--當前頁數 @pagesize INT=10,--每頁大小 @tablename VARCHAR(50)='',--表名 @fields VARCHAR(1000)='',--查詢的字段集合 @keyid VARCHAR(50)='',--主鍵 @condition NVARCHAR(1000)='',--查詢條件 @orderstr VARCHAR(500),--排序條件 @totalRecord BIGINT OUTPUT--總記錄數 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 |
轉載于:https://www.cnblogs.com/yuhanzhong/archive/2012/02/17/2356128.html
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