使用 SQL Server 2005 的最佳分页解决方案?
对大约 5,000-10,000 行的表使用 SQL Server 2005 的最有效分页解决方案是什么?我见过几个,但没有比较它们.
What is the most efficient paging solution using SQL Server 2005 against a table with around 5,000-10,000 rows? I've seen several out there but nothing comparing them.
推荐答案
对于这么大的表,使用公共表表达式 (CTE) 和 ROW_NUMBER;使用一个小函数来计算基于 @PageNumber
和 @PageSize
变量(或您想调用它们的任何内容)带回来的记录.我们存储过程之一的简单示例:
For a table that size, use a Common-Table Expression (CTE) and ROW_NUMBER; use a small function to calculate the records to bring back based on @PageNumber
and @PageSize
variables (or whatever you want to call them). Simple example from one of our stored procedures:
-- calculate the record numbers that we need
DECLARE @FirstRow INT, @LastRow INT
SELECT @FirstRow = ((@PageNumber - 1) * @PageSize) + 1,
@LastRow = ((@PageNumber - 1) * @PageSize) + @PageSize
;
WITH CTE AS
(
SELECT [Fields]
, ROW_NUMBER() OVER (ORDER BY [Field] [ASC|DESC]) as RowNumber
FROM [Tables]
WHERE [Conditions, etc]
)
SELECT *
-- get the total records so the web layer can work out
-- how many pages there are
, (SELECT COUNT(*) FROM CTE) AS TotalRecords
FROM CTE
WHERE RowNumber BETWEEN @FirstRow AND @LastRow
ORDER BY RowNumber ASC
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