Question

这是我的SQL查询，但出现错误：

关键字“ order”附近的语法不正确

我已经检查了所有内容，但无法纠正。请帮助

SELECT TOP (1) 
    CONVERT(VARCHAR(19), DayCheckOut, 120) 
FROM 
    (SELECT TOP (2) 
         A1.DayCheckOut AS DayCheckOut 
     FROM 
         EmployeeAttendace A1 
     INNER JOIN 
         EmployeeMaster B1 ON A1.EmployeeId = B1.Id 
     WHERE 
         B1.EmailId = 'raja.xyz@gmail.com'  
     ORDER BY 
         A1.Id DESC) 
ORDER BY 
    DayCheckOut DESC

Answer 1

提供别名

 SELECT top 1
 convert(varchar(19),DayCheckOut,120) 
 FROM 
   (SELECT top 2 A1.DayCheckOut as DayCheckOut FROM EmployeeAttendace A1 INNER JOIN 
    EmployeeMaster B1 ON A1.EmployeeId = B1.Id WHERE B1.EmailId = 
    'pooja.yadav@computronics.in'  order by A1.Id desc)  as AliasName
 order by DayCheckOut desc

Answer 2

您需要一个别名，例如q

用于子查询(SELECT top 2 A1.DayCheckOut as DayC ... order by A1.Id desc) q

对于 MS SQL Server DB 这是非常常见的问题。

Answer 3

不需要该子查询，现代SQL Server版本支持OFFSET / FETCH FIRST。

SELECT convert(varchar(19),A1.DayCheckOut,120) 
FROM EmployeeAttendace A1 INNER JOIN EmployeeMaster B1 ON A1.EmployeeId = B1.Id
WHERE B1.EmailId = 'raja.xyz@gmail.com'
order by A1.Id desc
offset 1 fetch next 1 row only

即使用OFFSET跳过第一行，使用FETCH NEXT仅返回第一行。

Answer 4

它在那里出错，因为您需要一个子查询别名。

但是，您不需要冗余子查询：

SELECT top (1) convert(varchar(19),A1.DayCheckOut,120) as DayCheckOut 
        FROM EmployeeAttendace A1 
        INNER JOIN EmployeeMaster B1 ON A1.EmployeeId = B1.Id 
        WHERE B1.EmailId = 'raja.xyz@gmail.com' 
order by A1.DayCheckOut desc;

Answer 5

选择顶部（1）转换（varchar（19），DayCheckOut，120） FROM（选择顶部（2）A1.DayCheckOut作为DayCheckOut 来自员工A1内部联接员工大师B1 开启A1.EmployeeId = B1.Id （'raja.xyz@gmail.com'）中的B1.EmailId在哪里
ORDER BY A1.Id desc ）按DayCheckOut DESC排序

SQL查询导致错误“关键字“ order”附近的语法不正确”

5 个答案: