📜  oracle 回滚 - SQL 代码示例

📅  最后修改于: 2022-03-11 15:04:59.844000             🧑  作者: Mango

代码示例1
-- Rollback (cancellation)
DELETE FROM employees WHERE employee_id = 123;    -- Done in current session
ROLLBACK;                                         -- Cancelled in current session
SELECT * FROM employees WHERE employee_id = 123;  -- Found
-- Commit (validation)
DELETE FROM employees WHERE employee_id = 123;    -- Done in current session
COMMIT;                                           -- Visible for ALL sessions
SELECT * FROM employees WHERE employee_id = 123;  -- Missing for ALL sessions