Question

无法将Oracle语法转换为T-SQL。试图转换以下声明：

SELECT *
FROM (WITH NEW_USERS AS (SELECT WPP.USER_ID
                         FROM DSS_ERS_STAGE.ES_W_PARTICIPANT_DIM WPP
                       MINUS
                       SELECT PP.USER_ID FROM DSS_ERS_STAGE.ES_PARTICIPANT_DIM PP)
     SELECT EWP.USER_ID
           ,EWP.CANDIDATE_1_0_FLAG
       FROM DSS_ERS_STAGE.ES_W_PARTICIPANT_DIM EWP
      INNER JOIN NEW_USERS N
         ON (EWP.USER_ID = N.USER_ID)
      WHERE EWP.CANDIDATE_1_0_FLAG = 1)

转化尝试：

SELECT *
FROM (WITH NEW_USERS AS (SELECT WPP.USER_ID
                         FROM DSS_ERS_STAGE.ES_W_PARTICIPANT_DIM WPP
                       EXCEPT
                       SELECT PP.USER_ID FROM DSS_ERS_STAGE.ES_PARTICIPANT_DIM PP)
     SELECT EWP.USER_ID
           ,EWP.CANDIDATE_1_0_FLAG
       FROM DSS_ERS_STAGE.ES_W_PARTICIPANT_DIM EWP
      INNER JOIN NEW_USERS N
         ON (EWP.USER_ID = N.USER_ID)
      WHERE EWP.CANDIDATE_1_0_FLAG = 1)

SQL Server返回以下错误：

第15行，第1行，第2行   关键字“WITH”附近的语法不正确。

Msg 319，Level 15，State 1，Line 2   关键字'with'附近的语法不正确。如果此语句是公用表表达式，xmlnamespaces子句或更改跟踪上下文子句，则必须以分号结束前一个语句。

Msg 102，Level 15，State 1，Line 11   '）'附近的语法不正确。

Answer 1

SQL Server不允许使用CTE in subquery：

WITH NEW_USERS AS (SELECT WPP.USER_ID
                   FROM DSS_ERS_STAGE.ES_W_PARTICIPANT_DIM WPP
                   EXCEPT    -- Oracle has MINUS
                   SELECT PP.USER_ID 
                   FROM DSS_ERS_STAGE.ES_PARTICIPANT_DIM PP)
SELECT EWP.USER_ID
       ,EWP.CANDIDATE_1_0_FLAG
FROM DSS_ERS_STAGE.ES_W_PARTICIPANT_DIM EWP
INNER JOIN NEW_USERS N
   ON (EWP.USER_ID = N.USER_ID)
WHERE EWP.CANDIDATE_1_0_FLAG = 1;

第二件事：SQL Server有EXCEPT个关键字，而不是MINUS。

Oracle到T-SQL CTE转换错误

1 个答案: