Results for “State & reducers”
Small, practical examples. Search by task or narrow things down below.
Read updated base-table values through a view
SQL: An ordinary view reflects later changes to its underlying data.
SQL✓ Tested
Read updated base-table values through a view
SQL Server: An ordinary view reflects later changes to its underlying data.
SQL Server✓ Tested
Read updated base-table values through a view
Postgres: An ordinary view reflects later changes to its underlying data.
Postgres✓ Tested
Read updated base-table values through a view
SQLite: An ordinary view reflects later changes to its underlying data.
SQLite✓ Tested
Reference a parent identified by two columns
SQL: A composite foreign key checks the complete referenced key rather than either column independently.
SQL✓ Tested
Reference a parent identified by two columns
SQL Server: A composite foreign key checks the complete referenced key rather than either column independently.
SQL Server✓ Tested
Reference a parent identified by two columns
Postgres: A composite foreign key checks the complete referenced key rather than either column independently.
Postgres✓ Tested
Reference a parent identified by two columns
SQLite: A composite foreign key checks the complete referenced key rather than either column independently.
SQLite✓ Tested
Reject a negative quantity with CHECK
SQL: Combine NOT NULL and CHECK because an unknown NULL check result is normally accepted.
SQL✓ Tested
Reject a negative quantity with CHECK
SQL Server: Combine NOT NULL and CHECK because an unknown NULL check result is normally accepted.
SQL Server✓ Tested
Reject a negative quantity with CHECK
Postgres: Combine NOT NULL and CHECK because an unknown NULL check result is normally accepted.
Postgres✓ Tested
Reject a negative quantity with CHECK
SQLite: Combine NOT NULL and CHECK because an unknown NULL check result is normally accepted.
SQLite✓ Tested