LONG & VARCHAR2 ?

Hi, All

  What's difference between...

sSelectedFields LONG;
sSQLCommand LONG;
sAnotherSQLCommand LONG;
sOtherFields LONG;

and

sSelectedFields VARCHAR2(4000);
sSQLCommand VARCHAR2(4000);
sAnotherSQLCommand VARCHAR2(4000);
sOtherFields VARCHAR2(4000);

  Is LONG datatype use more memory or resource ?

Thanks

Chris Chi Received on Fri Sep 29 2000 - 01:12:02 CDT