Results for “missing rows”
Small, practical examples. Search by task or narrow things down below.
Find rows in the first result but not the second
SQL: EXCEPT calculates a distinct result-set difference.
SQL✓ Tested
Find rows in the first result but not the second
SQL Server: EXCEPT calculates a distinct result-set difference.
SQL Server✓ Tested
Find rows in the first result but not the second
Postgres: EXCEPT calculates a distinct result-set difference.
Postgres✓ Tested
Find rows in the first result but not the second
SQLite: EXCEPT calculates a distinct result-set difference.
SQLite✓ Tested
Find rows shared by two query results
SQL: INTERSECT compares complete selected rows and removes duplicates.
SQL✓ Tested
Find rows shared by two query results
SQL Server: INTERSECT compares complete selected rows and removes duplicates.
SQL Server✓ Tested
Find rows shared by two query results
Postgres: INTERSECT compares complete selected rows and removes duplicates.
Postgres✓ Tested
Find rows shared by two query results
SQLite: INTERSECT compares complete selected rows and removes duplicates.
SQLite✓ Tested
Find rows with a related record
Use EXISTS without duplicating the outer rows.
EXISTS✓ Tested
Find set members missing from another set
Java: Use removeAll on a copy to calculate a set difference.
Java✓ Tested
Find sorted set members missing from another set
C++: set_difference writes elements present in the first sorted input but absent from the second.
C++✓ Tested
Find values missing from another collection
Python: Use a set difference to identify requested IDs absent from the available IDs.
Python✓ Tested