Question

Running Pro*C on Oracle 10g.

I am looking to do a subquery within an insert statement values clause. This sql query is fully valid and runs within TOAD with no problems, but Pro*C fails to parse the query.

EXEC SQL INSERT INTO TARGET_ATTACHMENT 
      (
          TARGET_ID
          FILENAME
      ) 
      VALUES ( 
         :targetID,
         ( SELECT CREATED_FLAG from TARGET t where t.TARGET_ID = :targetID ) || '.tif'
      )

If I remove:

( SELECT (CREATED_FLAG || DISPLAY_ID) from TARGET t where t.TARGET_ID = :targetID ) ||**". 

The Pro*C compiler works and everything compiles and runs as expected.

If I DO NOT remove:
The Pro*C compiler throws a syntax error.

1>Syntax error at line 128, column 12, file        d:\SVN\...\TA.pc:
1>Error at line 128, column 12 in file d:\SVN\...
1>...\TA.pc
1>                ( select CREATED_FLAG from target t where t.TARGET_ID = :targetID )
1>...........1
1>PCC-S-02201, Encountered the symbol "CREATED_FLAG" when expecting one of the fol
1>lowing:
1>   ( ) * + - / . @ | at, day, hour, minute, month, second, year,

This is a problem, as I expect Pro*C to be able to compile subquerys within a values caluse:

ie.

INSERT into table1 (col1) values ( (select t2.singleCol from table2 t2 where t2.priKey = :priKey) )

Is this expected behaviour of Pro*C? or Should it support subqueries within the values clause?

Answer 1

Possibly change the subquery to:

( SELECT CREATED_FLAG || '.tif' from TARGET t where t.TARGET_ID = :targetID ) 

I dont think I have ever seen something appended to a subquery the way you were attempting.