在子查询中选择多个字段

Question

This ABAP code works:

  select *
   into table <sub_result>
  from ADRC
  WHERE ADDRNUMBER
  in ( select ADRNRA from AUFK where (cond_string) ).

But this does not:

  select *
   into table <sub_result>
  from ADRC
  WHERE (ADDRNUMBER, MANDT)
  in ( select ADRNRA, MANDT from AUFK where (cond_string) ).

AFAIK the tuple syntax (ADDRNUMBER, MANDT) is valid for SQL. Is this not valid in Open SQL of ABAP?

If the tuple syntax is not allowed, what could I do?

PS In Open SQL checking for MANDT is not needed, so this is only sample query.

Answer 1

You can not use in for multiple columns. Try like this:

SELECT *
  INTO table <sub_result>
  FROM ADRC d
  WHERE exists ( select 1 from AUFK a where a~ADDRNUMBER = d~ADDRNUMBER and a~MANDT = d~MANDT)

Answer 2

To complete Pelin's answer, here are two possible syntaxes, depending on the ABAP version :

DATA sflights TYPE TABLE OF sflight.

" Strict mode of OpenSQL (>= 7.40 SP 5 ; more syntaxes than old OpenSQL syntax)

SELECT * FROM sflight AS f INTO TABLE @sflights  " <== @ activates the strict mode
  WHERE NOT EXISTS ( SELECT 1 FROM sbook AS b    " <== 1 is possible in strict mode
        WHERE b~carrid = f~carrid
          AND b~connid = f~connid
          AND b~fldate = f~fldate ).

" "Loose" mode of OpenSQL (strict mode not used)

SELECT * FROM sflight AS f INTO TABLE sflights " <== no @ i.e. strict mode deactivated
  WHERE NOT EXISTS ( SELECT * FROM sbook AS b  " <== 1 is not possible
        WHERE b~carrid = f~carrid
          AND b~connid = f~connid
          AND b~fldate = f~fldate ).