How to find un assigented worker on particular day

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how to find unassigned worker on a specific date?

table: Worker {id (int) Name(varchar) }

table: Work_Assignments {wrkdate(Date),Worker_id (int),Work_id (int)}

Posted 3-Mar-14 22:06pm

manuthebos

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Richard MacCutchan 4-Mar-14 4:27am

You will need to provide far more detail than that. Please edit your question and explain the problem clearly.

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Peter Leow · Answer 1 · 2014-03-03T22:27:00

Solution 1

SQL

SELECT w.name FROM worker w
WHERE NOT EXISTS
(
SELECT * FROM work_assignments wa WHERE wa.worker_id = w.id
  AND wa.wrkdate = '2013/1/1'
)

Posted 3-Mar-14 22:27pm

Peter Leow