SELECT * FROM employees WHERE NOT EXISTS (SELECT * FROM contacts WHERE employees.last_name = contacts.last_name AND employees.first_name = contacts.first_name);
This SQL Server NOT example would return all records from the employees table where there are no records in the contacts table for the matching last_name and first_name.
SELECT * FROM employees WHERE NOT EXISTS (SELECT * FROM contacts WHERE employees.last_name = contacts.last_name AND employees.first_name = contacts.first_name);
This SQL Server NOT example would return all records from the employees table where there are no records in the contacts table for the matching last_name and first_name.
status | not learned | measured difficulty | 37% [default] | last interval [days] | |||
---|---|---|---|---|---|---|---|
repetition number in this series | 0 | memorised on | scheduled repetition | ||||
scheduled repetition interval | last repetition or drill |