Question

处理存储它的存储过程会导致临时表并希望转换为CTE。

代码：

DECLARE  @SQL nVARCHAR(max)

SET @SQL = '
;with CTE_RESULT 
(
        CAMP_ABBR,
        ORIG_CALL_DATE,
        DONOR_ID,
        ACCOUNT_NUMBER_100,
        COMPANY_NAME_100,
        FIRST_NAME,
        LAST_NAME,
        PHONE,
        STREET1,
        STREET2,
        STATE,
        CITY,
        ZIP_CODE,
        WAVE_NAME,
        EMAIL,
        ORIGINAL_EMAIL,
        CODE1,
        DISPOSITION_CODE,
        DESCRIPTION 
)AS

(
SELECT  CAMP_ABBR,
        CONVERT(VARCHAR,ORIG_CALL_DATE,101),
        DONOR_ID,
        ACCOUNT_NUMBER_100 AS ACCOUNT_ID,
        COMPANY_NAME_100,
        FIRST_NAME,
        LAST_NAME,
        TEL_AREA_CODE + TEL_PREFIX + TEL_ROOT AS PHONE,
        STREET1,
        STREET2,
        STATE,
        CITY,
        ZIP_CODE,
        WAVE_NAME,
        EMAIL,
        ORIGINAL_EMAIL,
        CODE1,
        R.DISPOSITION_CODE,
        D.DESCRIPTION 
FROM placeholder1 t1
WHERE COLUMN IN(''01'',''02''))
'

EXEC @SQL

返回以下错误：

Msg 203，Level 16，State 2，Line 114
  名称';与CTE_RESULT（CAMP_ABBR，ORIG_CALL_DATE，DONOR_ID，ACCOUNT_NUMBER_100，COMPANY_NAME_100，FIRST_NAME，LAST_NAME，PHONE，STREET1，STREET2，STATE，CITY，ZIP_CODE，WAVE_NAME，EMAIL，ORIGINAL_EMAIL，CODE1，DISPOSITION_CODE，说明）AS

（SELECT CAMP_ABBR，CONVERT（VARCHAR，ORIG_CALL_DATE，101），DONOR_ID，         ACCOUNT_NUMBER_100 AS ACCOUNT_ID，COMPANY_NAME_100，FIRST_NAME，         LAST_NAME，TEL_AREA_CODE + TEL_PREFIX + TEL_ROOT作为电话，         STREET1，STREET2，STATE，CITY，ZIP_CODE，WAVE_NAME，         EMAIL，ORIGINAL_EMAIL，CODE1，DISPOSITIO'
  不是有效的标识符。

看起来它已达到局部变量的varchar限制，但我不知道原因是什么。

Answer 1

EXEC @SQL应为EXEC (@SQL);，首先应该为我提供的不是有效的标识符。

由于

Answer 2

您需要将AS关键字移近WITH，并且需要重新格式化查询，类似于：

;with CTE_RESULT AS -- NOTE: AS moved here
(
    SELECT
        CAMP_ABBR,
        ORIG_CALL_DATE,
        DONOR_ID,
        ACCOUNT_NUMBER_100,
        COMPANY_NAME_100,
        FIRST_NAME,
        LAST_NAME,
        PHONE,
        STREET1,
        STREET2,
        STATE,
        CITY,
        ZIP_CODE,
        WAVE_NAME,
        EMAIL,
        ORIGINAL_EMAIL,
        CODE1,
        DISPOSITION_CODE,
        DESCRIPTION
    FROM placeholder1 t1
    WHERE COLUMN IN(''01'',''02'')
) -- AS -- this AS here should be causing the error.
SELECT * FROM CTE_RESULT

在此处阅读有关Common Table Expressions语法的更多信息：WITH common_table_expression。

Answer 3

执行局部变量但未从CTE中选择，通过从局部变量中填充的控制表中进行选择。：

DECLARE @STARTDATE DATETIME,
        @ENDDATE DATETIME,
        @SQL nVARCHAR(max)

SET @SQL = '
;with CTE_RESULT  
(
        CAMP_ABBR,
        ORIG_CALL_DATE,
        DONOR_ID,
        ACCOUNT_NUMBER_100,
        COMPANY_NAME_100,
        FIRST_NAME,
        LAST_NAME,
        PHONE,
        STREET1,
        STREET2,
        STATE,
        CITY,
        ZIP_CODE,
        WAVE_NAME,
        EMAIL,
        ORIGINAL_EMAIL,
        CODE1,
        DISPOSITION_CODE,
        DESCRIPTION 
)
AS
(
SELECT  M.CAMP_ABBR,
        CONVERT(VARCHAR,ORIG_CALL_DATE,101),
        DONOR_ID,
        ACCOUNT_NUMBER_100 AS ACCOUNT_ID,
        COMPANY_NAME_100,
        FIRST_NAME,
        LAST_NAME,
        TEL_AREA_CODE + TEL_PREFIX + TEL_ROOT AS PHONE,
        STREET1,
        STREET2,
        STATE,
        CITY,
        ZIP_CODE,
        WAVE_NAME,
        EMAIL,
        ORIGINAL_EMAIL,
        CODE1,
        R.DISPOSITION_CODE,
        D.DESCRIPTION 
FROM CMSPRD18.CAMP.DBO.GHIL0001_MAS M
LEFT JOIN CMSPRD18.CAMP.DBO.GHIL0001_RES R
ON M.UNIQUE_NUMBER = R.UNIQUE_NUMBER
JOIN [ADMIN].[DBO].[CAMPAIGN] C 
ON M.CAMP_ABBR = C.CAMP_ABBR
JOIN [ADMIN].[DBO].DISPOSITION D 
ON C.CAMP_ID = D.CAMP_ID
AND R.DISPOSITION_CODE = D.DISPOSITION_CODE
WHERE R.DISPOSITION_CODE IN(''01'',''02''))

SELECT * 
FROM CTE_RESULT

'

EXEC（@SQL）

这是我想通过转换实现的目标。

在CTE中不是有效的标识符T SQL动态SQL

3 个答案: