Query syntax problem.

Question

Hi All
SELECT DATE '2009-08-10' dt, 'CP' TYPE, 500 amount FROM dual
When we execute the above query its fine. But when we specify datatype for the second column TYPE like the first date column dt.
Its shows error "ORA-00936: missing expression". Can any one tell what went wrong. Thanks in advance
SELECT DATE '2009-08-10' dt, CHAR 'CP' TYPE, 500 amount FROM dual
UNION ALL
SELECT DATE '2009-08-10' dt, CHAR 'CP' TYPE, 500 amount FROM dual
George
Kerala
Edited by: user6290570 on Aug 30, 2009 11:44 PM
Edited by: user6290570 on Aug 30, 2009 11:45 PM

Answer 1

small correction,
For your 'CP' string, this is already a varchar2 datatypeFor your 'CP' string, this is already a CHAR datatype
SQL> with test
  2  as
  3  (select 'CR' t
  4     from dual
  5  )
  6  select t
  7       , dump (t)
  8    from test
  9  /
T
DUMP(T)
CR
Typ=96 Len=2: 67,82
SQL> select text
  2    from all_source
  3   where type = 'PACKAGE'
  4     and name = 'DBMS_DESCRIBE'
  5     and line between 151 and 182
  6  /
TEXT
  --           0 - This row is a placeholder for a procedure with
  --               no arguments.
  --           1 - VARCHAR2
  --           2 - NUMBER
  --           3 - NATIVE INTEGER (BINARY_INTEGER or PLS_INTEGER)
  --           8 - LONG
  --          11 - ROWID
  --          12 - DATE
  --          23 - RAW
  --          24 - LONG RAW
  --          58 - OPAQUE TYPE
TEXT
  --          96 - CHAR
  --         100 - BINARY_FLOAT
  --         101 - BINARY_DOUBLE
  --         104 - UROWID
  --         106 - MLSLABEL
  --         112 - CLOB
  --         113 - BLOB
  --         114 - BFILE
  --         121 - OBJECT
  --         122 - NESTED TABLE
  --         123 - VARRAY
TEXT
  --         178 - TIME
  --         179 - TIME WITH TIME ZONE
  --         180 - TIMESTAMP
  --         181 - TIMESTAMP WITH TIME ZONE
  --         182 - INTERVAL YEAR TO MONTH
  --         183 - INTERVAL DAY TO SECOND
  --         231 - TIMESTAMP WITH LOCAL TIME ZONE
  --         250 - PL/SQL RECORD (see "Notes:" below)
  --         251 - PL/SQL TABLE
  --         252 - PL/SQL BOOLEAN (see "Notes:" below)
32 rows selected.;)