对由SELECT--FROM—WHERE—GROUP--ORDER组成的SQL语句，其在被DBMS处理时，各子句的执行次序为（）A、SELECT—FROM—GROUP—WHERE—ORDERB、FROM--WHERE——GROUP——ORDER——SELECTC、FROM——WHERE——GROUP——SELECT——ORDERD、SELECT——FROM——WHERE——GROUP——ORDER
对由SELECT--FROM—WHERE—GROUP--ORDER组成的SQL语句，其在被DBMS处理时，各子句的执行次序为（）
- A、SELECT—FROM—GROUP—WHERE—ORDER
- B、FROM--WHERE——GROUP——ORDER——SELECT
- C、FROM——WHERE——GROUP——SELECT——ORDER
- D、SELECT——FROM——WHERE——GROUP——ORDER
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