Is how to delete job application?

I created two tables "newtest" and 'rent' and I use the following query to remove from newtest: remove from newtest where exists (select X from place where location.location_id = newtest.a): desired records are deleted, BUT MY REQUEST IS 'X' operation here?

Desciption of X to object gives the following

SQL > desc X;

FUNCTION X NUMBER OF RETURNS

Name of default input/output argument type?

------------------------------ ----------------------- ------ --------

P                              POINT                   IN

your X must be a synonym for the OGC_X function. If you call it with one argument (null will do) it will run. To try:

Select x (1) of double;

Select (null) double x;

Your subquery EXIST WHERE runs this function several times, which is really bad for the performance. You should do as says Aman and use a literal in x. almost anything will do: a number, or (as Aman said) 'Y '.

Tags: Database

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