Roger,
Tuesday, August 13, 2002, 12:22:26 PM, you wrote:
[skip]
>> I tried to remove null rows by doing:
>> delete from book where subject='NULL';
>> But it didn't work, also how to delete identical rows?
RB> NULL is a special value, not a string, so you should not use quotes:
RB> delete from book where subject=NULL;
^^^^^^
Just a small correction:
delete from book where subject IS NULL
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