SQL: how to select IDs according to a condition? -
i started program in sql , have bit of problem (n.b., working of tabl come game). table this, id refers single person, h hour of playing , if condition:
id h if 01 1 0 01 2 0 01 3 0 02 1 0 02 2 1 03 1 0 03 2 1 03 3 0 03 4 1
in case player 01 played 3 hours, player 02 2 hours , player 03 4 hours. in each of these hours may or may have not performed action. if did, 1 appears in if column.
now, doubt is: how can query have table id of people never performed action? not want rule out row if = 1, want rule out row id. in case should become:
01 1 0 01 2 0 01 3 0
any help?
this should it.
select * table id not in (select id table if = 1)
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