TSQL情况下语法

Question

您好我需要这个代码的语法帮助：

IF OBJECT_ID('TEMPDB..#LTS_MAP') IS NOT NULL 
BEGIN DROP TABLE #LTS_MAP END 


SELECT 
dtMicIssue as LATE_CHARGE_FACTOR 
,CASE 
WHEN (dtMicIssue is NOT NULL) AND (dtMicIssue <> '1900-01-01 00:00:00') 
THEN CONVERT(SMALLDATETIME,dtMicIssue) 
    ELSE NULL END 


INTO #LTS_MAP 
FROM SBAURSQL001.LTSArchive.dbo.LoanMaster_0609 

receiving error: Msg 8155, Level 16, State 1, Line 5 No column was specified for column 2 of '#LTS_MAP'.

尝试情况下的功能与选择的dtMicIssue的和语法搞乱结合...

Answer 1

您需要别名CASE语句，以便它有一个列名：

IF OBJECT_ID('TEMPDB..#LTS_MAP') IS NOT NULL 
BEGIN DROP TABLE #LTS_MAP END 


SELECT 
dtMicIssue as LATE_CHARGE_FACTOR 
,CASE 
WHEN (dtMicIssue is NOT NULL) AND (dtMicIssue <> '1900-01-01 00:00:00') 
THEN CONVERT(SMALLDATETIME,dtMicIssue) 
    ELSE NULL END AS DATE 


INTO #LTS_MAP 
FROM SBAURSQL001.LTSArchive.dbo.LoanMaster_0609 

Answer 2

正是它说

每列需要在你所创建表#LTS_MAP姓名...

SELECT 
dtMicIssue as LATE_CHARGE_FACTOR 
,CASE 
WHEN (dtMicIssue is NOT NULL) AND (dtMicIssue <> '1900-01-01 00:00:00') 
THEN CONVERT(SMALLDATETIME,dtMicIssue) 
    ELSE NULL END AS SomethingMeaningfulHere --you're missing this: a column name! 


INTO #LTS_MAP 
FROM SBAURSQL001.LTSArchive.dbo.LoanMaster_0609 

Answer 3

既然你正在做一个SELECT INTO，SQL Server需要知道每列的名称。您的第二列（与CASE一起）没有明确的名称。决定你想叫什么，然后把

AS ColumnName 

表示结束CASE

Answer 4

试试这个

SELECT dtMicIssue as LATE_CHARGE_FACTOR, 
    CASE WHEN (dtMicIssue is NOT NULL) AND 
      (dtMicIssue <> '1900-01-01 00:00:00') 
     THEN CONVERT(SMALLDATETIME,dtMicIssue) 
     ELSE NULL END As SomeColumnName 

INTO #LTS_MAP 
FROM SBAURSQL001.LTSArchive.dbo.LoanMaster_0609