INSERT INTO DEPARTMENT (DEPTNO, DEPTNAME, ADMRDEPT)
VALUES (’B11’, ’PURCHASING’, ’B01’),
(’E41’, ’DATABASE ADMINISTRATION’, ’E01’);
与
INSERT INTO DEPARTMENT (DEPTNO, DEPTNAME, ADMRDEPT)
VALUES (’B11’, ’PURCHASING’, ’B01’);
INSERT INTO DEPARTMENT (DEPTNO, DEPTNAME, ADMRDEPT)
VALUES (’E41’, ’DATABASE ADMINISTRATION’, ’E01’);
执行效率方面有什么区别
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