Sql server SQL Server：在插入时使用case

我有以下sql：

;WITH DatesCTE AS 
(
   SELECT CAST('2016-01-01' AS DATE) AS [workingDays]

   UNION ALL

   SELECT DATEADD(DAY, 1, workingdays)
   FROM DatesCTE
   WHERE DATEADD(DAY, 1, workingdays) < '2017-01-01'
)
insert into dbo.tWorkingDays
     (date,
     CASE ((DATEPART(dw, workingDays) + @@DATEFIRST) % 7) NOT IN (0, 1) when TRUE THEN 1,
        ELSE 0
    END
    )
SELECT *
FROM DatesCTE
WHERE ((DATEPART(dw, workingDays) + @@DATEFIRST) % 7) NOT IN (0, 1)
OPTION (MAXRECURSION 366)

当我尝试执行请求时，我看到以下内容：

味精156，15级，状态1，第14行 关键字“CASE”附近的语法不正确

---

我做错了什么？

看起来您得到了要插入的字段列表和要插入的值的选择列表。应该是这样的：

;WITH DatesCTE
 AS (

   SELECT CAST('2016-01-01' AS DATE) AS [workingDays]
   UNION ALL

   SELECT DATEADD(DAY, 1, workingdays)
   FROM DatesCTE
   WHERE DATEADD(DAY, 1, workingdays) < '2017-01-01'

)
insert into dbo.tWorkingDays
     (date, is_business_day)
SELECT workingDays,
     CASE WHEN ((DATEPART(dw, workingDays) + @@DATEFIRST) % 7) NOT IN (0, 1) THEN 1 ELSE 0
    END
FROM DatesCTE
WHERE ((DATEPART(dw, workingDays) + @@DATEFIRST) % 7) NOT IN (0, 1)
OPTION (MAXRECURSION 366)

---

您可能不希望WHERE子句和大小写出现在同一个查询中，但引用的代码至少应能解决语法错误。

CASE when DATEPARTdw，workingDays+@@DATEFIRST%7不在0中，1则1 ELSE 0 END应该可以。@Loser不应该，逗号不应该在那里

   ;WITH DatesCTE AS (
       SELECT CAST('20160101' AS DATE) AS [workingDays]
       UNION ALL

       SELECT DATEADD(DAY, 1, workingdays)
       FROM DatesCTE
       WHERE DATEADD(DAY, 1, workingdays) < '2017-01-01'
    )
    INSERT INTO dbo.tWorkingDays (date, is_business_day)
    SELECT *, CASE WHEN (DATEPART(dw, workingDays) + @@DATEFIRST) % 7 NOT IN (0, 1) THEN 1 ELSE 0 END
    FROM DatesCTE
    --WHERE (DATEPART(dw, workingDays) + @@DATEFIRST) % 7 NOT IN (0, 1)
    OPTION (MAXRECURSION 366)

   ;WITH DatesCTE AS (
       SELECT CAST('20160101' AS DATE) AS [workingDays]
       UNION ALL

       SELECT DATEADD(DAY, 1, workingdays)
       FROM DatesCTE
       WHERE DATEADD(DAY, 1, workingdays) < '2017-01-01'
    )
    INSERT INTO dbo.tWorkingDays (date, is_business_day)
    SELECT *, CASE WHEN (DATEPART(dw, workingDays) + @@DATEFIRST) % 7 NOT IN (0, 1) THEN 1 ELSE 0 END
    FROM DatesCTE
    --WHERE (DATEPART(dw, workingDays) + @@DATEFIRST) % 7 NOT IN (0, 1)
    OPTION (MAXRECURSION 366)