php - MySQL check if rows exists and delete it in the same query -

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i following in 1 query, wandering if possible:

$rowsq = $mysql->query("select * `table` (a='a' , b='b')"); if($rowsq->num_rows){     $mysql->query("delete `table` (a='a' , b='b')"); }

i have seen similar thing exists query different table so:

$mysql->query("delete `table` exists (select * `table2` table.id = table2.id)");

is possible on same table though , if have rewrite same conditions or there shorter way?

you can use delete, in case row doesn't exists specified values, query return out doing thing. can avoid select

delete table ='a' , b='b'

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