Different Result for SQL and PL/SQL query..need a bit of help

Question

If i just run:
SELECT COUNT(*) from DB where (CLOSE_TIME-OPEN_TIME<5) and (CLOSE_TIME-OPEN_TIME>=1) and OPEN_TIME>'1/1/2011';
It works great.
If I run
BEGIN
SELECT COUNT(*) from DB where (CLOSE_TIME-OPEN_TIME<5) and (CLOSE_TIME-OPEN_TIME>=1) and OPEN_TIME>'1/1/2011';
END
I get the following error.
ORA-04052: error occurred when looking up remote object [email protected]
ORA-00604: error occurred at recursive SQL level 3
ORA-06552: PL/SQL: Compilation unit analysis terminated
ORA-06553: PLS-488: invalid variable declaration: object 'NUMBER' must be a type or subtype
ORA-02063: preceding 2 lines from SMGLINK

Answer 1

Hi,
Whenever you have a problem, post a complete test script that people can run to re-create the problem and test their ideas. Include CREATE TABLE and INSERT statements for any or your own tables needed.
Post the results you want from that sample data.
Always say which version of Oracle you're using.
bostonmacosx wrote:
If i just run:
SELECT COUNT(*) from DB where (CLOSE_TIME-OPEN_TIME<5) and (CLOSE_TIME-OPEN_TIME>=1) and OPEN_TIME>'1/1/2011';If OPEN_TIME is a DATE, then don't try to compare it to a string, such as '1/1/2011'. (This is not related to the present problem, only a future one.)
It works great.
If I run
BEGIN
SELECT COUNT(*) from DB where (CLOSE_TIME-OPEN_TIME<5) and (CLOSE_TIME-OPEN_TIME>=1) and OPEN_TIME>'1/1/2011';
END
I get the following error.
ORA-04052: error occurred when looking up remote object [email protected]
ORA-00604: error occurred at recursive SQL level 3
ORA-06552: PL/SQL: Compilation unit analysis terminated
ORA-06553: PLS-488: invalid variable declaration: object 'NUMBER' must be a type or subtype
ORA-02063: preceding 2 lines from SMGLINKI would expect a different error "PLS_00428: an INTO clause is expected".