項目中有很多小型的表(數據量不大),都需要實現
分頁查詢,因此實現了一個通用的分頁。
建立好如下的
存儲過程,以後要分頁,直接調用改存儲過程就可以了。
注意:數據量大、性能要求高的,請個性化處理。
ALTER PROCEDURE [dbo].[COMMON_PROCEDURE_
SelectWithPage]
@
Sql VARCHAR(5000),
@CurrentPageNo INT,
@PageSize INT,
@TotalNum INT OUTPUT
AS SET NOCOUNT ON
DECLARE @
SqlCmd VARCHAR(5000)
------------------------------------------ --查詢數據
SET @SqlCmd = 'SELECT * FROM (' + @Sql + ') A WHERE RowIndex BETWEEN ' + CONVERT(VARCHAR,(@CurrentPageNo-1) * @PageSize + 1) + ' AND ' + CONVERT(VARCHAR,@CurrentPageNo * @PageSize)
EXEC(@SqlCmd) PRINT (@SqlCmd)
------------------------------------------ --求記錄總數
IF @TotalNum = -1
BEGIN
CREATE TABLE #Temp1(num INT)
INSERT INTO #Temp1
EXEC('SELECT count(*) FROM (' + @Sql + ') A')
SELECT @TotalNum=(SELECT * FROM #Temp1)
DROP TABLE #Temp1
END
用法很簡單,但必須在傳入的SQL中使用ROW_NUMBER() OVER(...) AS RowIndex :
DECLARE @Sql VARCHAR(5000)
DECLARE @CurrentPageNo INT
DECLARE @PageSize INT
DECLARE @TotalNum INT
SET @CurrentPageNo = 100
SET @PageSize = 10
SET @TotalNum = -1
SET @Sql = ' SELECT *, ROW_NUMBER() OVER (ORDER BY 排序字段) AS RowIndex FROM 表名 A WITH (NOLOCK) '
EXEC [dbo].[COMMON_PROCEDURE_SelectWithPage] @Sql,@CurrentPageNo,@PageSize,@TotalNum OUTPUT
SELECT @TotalNum