摘要：
Merging into a Table: ExampleThe following example uses the bonuses table in the sample schema oe with a default bonus of 100. It then inserts into th... 阅读全文
摘要：
SET TRANSACTION NAME 'Update salaries';SAVEPOINT before_salary_update;UPDATE employees SET salary=9100 WHERE employee_id=1234 # DMLROLLBACK TO SAVEPOI... 阅读全文