sql - OFFSET 命令附近的语法不正确

Question

为什么这不起作用并给我一个“偏移命令附近的语法不正确”错误

SELECT o.orderdate, o.orderid, o.empid, o.custid FROM Sales.Orders o
ORDER BY o.orderdate, o.orderid
OFFSET 50 ROWS
FETCH NEXT 25 ROWS ONLY;

我正在使用 SQL Server Express 2014

Answer 1

检查数据库兼容性级别。OFFSET 是 SQL Server 2012 中添加的，因此如果您的数据库处于 2008 兼容模式，则该关键字不可用。

View or Change the Compatibility Level of a Database

在 T-SQL 中你可以这样检查:

 USE AdventureWorks2012;  
 GO  

 SELECT compatibility_level  
 FROM sys.databases WHERE name = 'AdventureWorks2012';  
 GO

以下是取自 How to check SQL Server Database compatibility after sp_dbcmptlevel is deprecated? 的兼容性级别列表:

 65 - SQL Server 6.5
 70 - SQL Server 7.0
 80 - SQL Server 2000
 90 - SQL Server 2005
100 - SQL Server 2008/R2
110 - SQL Server 2012
120 - SQL Server 2014
130 - SQL Server 2016
140 - SQL Server 2017

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此外，Azure SQL 数据仓库和并行数据仓库不支持 OFFSET 子句，从 ORDER BY 的文档可以看出子句:

-- Syntax for SQL Server and Azure SQL Database  

ORDER BY order_by_expression  
    [ COLLATE collation_name ]   
    [ ASC | DESC ]   
    [ ,...n ]   
[ <offset_fetch> ]  

<offset_fetch> ::=  
{   
    OFFSET { integer_constant | offset_row_count_expression } { ROW | ROWS }  
    [  
      FETCH { FIRST | NEXT } {integer_constant | fetch_row_count_expression } { ROW | ROWS } ONLY  
    ]  
}

-- Syntax for Azure SQL Data Warehouse and Parallel Data Warehouse  

[ ORDER BY   
    {  
    order_by_expression   
    [ ASC | DESC ]   
    } [ ,...n ]   
]