Results for “let”
Small, practical examples. Search by task or narrow things down below.
Undo only the work after a savepoint
SQLite: After committing the fixtures, roll back a trial change while keeping earlier work in the second transaction.
SQLite✓ Tested
Update a value through a pointer
Update a value through a pointer using a complete Go program with explicit sample inputs.
Go✓ Tested
Update an atomic counter
Update an atomic counter in a complete Rust program using the standard library.
Rust✓ Tested
Update an existing map value
Update an existing map value in a complete Rust program using the standard library.
Rust✓ Tested
Update an explicitly mutable variable
Update an explicitly mutable variable in a complete Rust program using the standard library.
Rust✓ Tested
Update one matching row
Change a value with an explicit filter.
UPDATE✓ Tested
Update rows selected by a related table
SQL: Use EXISTS to limit updates based on an independent eligibility table.
SQL✓ Tested
Update rows selected by a related table
SQL Server: Use EXISTS to limit updates based on an independent eligibility table.
SQL Server✓ Tested
Update rows selected by a related table
Postgres: Use EXISTS to limit updates based on an independent eligibility table.
Postgres✓ Tested
Update rows selected by a related table
SQLite: Use EXISTS to limit updates based on an independent eligibility table.
SQLite✓ Tested
Update several classifications in one statement
SQL: A CASE expression computes the new value for each row covered by the update predicate.
SQL✓ Tested
Update several classifications in one statement
SQL Server: A CASE expression computes the new value for each row covered by the update predicate.
SQL Server✓ Tested