UPDATE table_name SET [ ( column = expression [, ... ] ) ] [ WHERE condition ]
Update selected columns values in existing rows in a table.
The columns named in the
column = expression assignments will be updated
for all rows that match the
WHERE condition. The values of all column update
expressions for a matching row are evaluated before any column value is changed.
When the type of the expression and the type of the column differ, the usual implicit
CASTs, such as widening numeric fields, are applied to the
UPDATE expression values.
Update the status of all purchases that haven’t been assigned a ship date:
UPDATE purchases SET status = 'OVERDUE' WHERE ship_date IS NULL;
Update the account manager and account assign date for all customers:
UPDATE customers SET account_manager = 'John Henry', assign_date = now();
Update the manager to be the name of the employee who matches the manager ID:
UPDATE new_hires SET manager = ( SELECT e.name FROM employees e WHERE e.employee_id = new_hires.manager_id );
Some connectors have limited or no support for
See connector documentation for more details.