在PostgreSQL中,有Limit和Offset关键字,可以非常容易地对结果集进行分页。
SQL Server的等效语法是什么?
在PostgreSQL中,有Limit和Offset关键字,可以非常容易地对结果集进行分页。
SQL Server的等效语法是什么?
当前回答
我假设,在c#表达式/LINQ语句的跳过和采取生成下面的SQL命令
DECLARE @p0 Int = 1
DECLARE @p1 Int = 3
SELECT [t1].[Id]
FROM (
SELECT ROW_NUMBER() OVER (ORDER BY [t0].[Id]
FROM [ShoppingCart] AS [t0]
) AS [t1]
WHERE [t1].[ROW_NUMBER] BETWEEN @p0 + 1 AND @p0 + @p1
ORDER BY [t1].[ROW_NUMBER]
其他回答
LIMIT的等效函数是SET ROWCOUNT,但是如果你想要通用的分页,最好这样写一个查询:
;WITH Results_CTE AS
(
SELECT
Col1, Col2, ...,
ROW_NUMBER() OVER (ORDER BY SortCol1, SortCol2, ...) AS RowNum
FROM Table
WHERE <whatever>
)
SELECT *
FROM Results_CTE
WHERE RowNum >= @Offset
AND RowNum < @Offset + @Limit
这里的优点是,如果您决定更改分页选项(或允许用户这样做),则可以将偏移量和限制参数化。
注意:@Offset参数应该使用基于1的索引,而不是普通的基于0的索引。
select top (@TakeCount) * --FETCH NEXT
from(
Select ROW_NUMBER() OVER (order by StartDate) AS rowid,*
From YourTable
)A
where Rowid>@SkipCount --OFFSET
详细阐述Somnath-Muluk的回答:
SELECT *
FROM table_name_here
ORDER BY (SELECT NULL AS NOORDER)
OFFSET 9 ROWS
FETCH NEXT 25 ROWS ONLY
W /o添加任何额外的列。 在SQL Server 2019中测试,但我猜也可以在旧的版本中工作。
特别是对于SQL-SERVER,您可以通过许多不同的方式实现这一点。对于给定的真实例子,我们取Customer表。
例1:使用"SET ROWCOUNT"
SET ROWCOUNT 10
SELECT CustomerID, CompanyName from Customers
ORDER BY CompanyName
若要返回所有行,请将ROWCOUNT设置为0
SET ROWCOUNT 0
SELECT CustomerID, CompanyName from Customers
ORDER BY CompanyName
例2:使用"ROW_NUMBER and OVER"
With Cust AS
( SELECT CustomerID, CompanyName,
ROW_NUMBER() OVER (order by CompanyName) as RowNumber
FROM Customers )
select *
from Cust
Where RowNumber Between 0 and 10
例3:使用“OFFSET and FETCH”,但是使用这个“ORDER BY”是强制的
SELECT CustomerID, CompanyName FROM Customers
ORDER BY CompanyName
OFFSET 0 ROWS
FETCH NEXT 10 ROWS ONLY
希望这对你有所帮助。
select top {LIMIT HERE} * from (
select *, ROW_NUMBER() over (order by {ORDER FIELD}) as r_n_n
from {YOUR TABLES} where {OTHER OPTIONAL FILTERS}
) xx where r_n_n >={OFFSET HERE}
注意: 这个解决方案只能在SQL Server 2005或更高版本中工作,因为这是实现ROW_NUMBER()的时候。