給定以下SQL(Structured Query Language)指令,說明各指令的執行結果?(20 分)
CREATE DATABASE Courses;
CREATE TABLE Take_courses
(
Date DATE,
Student_ID INTEGER,
Course CHAR(20),
Charge DECIMAL(6, 2),
);
CREATE VIEW EE_courses AS SELECT Student_ID, Course, Charge FROM Take_courses ;
SELECT Student_ID, Charge FROM EE_courses WHERE Charge >1300 ;
GRANT ALL ON Take_courses TO John, Mary ;