表结构图如下:
创建表和插入数据:
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|
SET
FOREIGN_KEY_CHECKS=0;
-- ----------------------------
-- Table structure for class
-- ----------------------------
DROP
TABLE
IF EXISTS `class`;
CREATE
TABLE
`class` (
`cid`
int
(11)
NOT
NULL
AUTO_INCREMENT,
`caption`
varchar
(32)
NOT
NULL
,
PRIMARY
KEY
(`cid`)
) ENGINE=InnoDB AUTO_INCREMENT=5
DEFAULT
CHARSET=utf8;
-- ----------------------------
-- Records of class
-- ----------------------------
INSERT
INTO
`class`
VALUES
(
'1'
,
'三年二班'
);
INSERT
INTO
`class`
VALUES
(
'2'
,
'三年三班'
);
INSERT
INTO
`class`
VALUES
(
'3'
,
'一年二班'
);
INSERT
INTO
`class`
VALUES
(
'4'
,
'二年九班'
);
-- ----------------------------
-- Table structure for course
-- ----------------------------
DROP
TABLE
IF EXISTS `course`;
CREATE
TABLE
`course` (
`cid`
int
(11)
NOT
NULL
AUTO_INCREMENT,
`cname`
varchar
(32)
NOT
NULL
,
`teacher_id`
int
(11)
NOT
NULL
,
PRIMARY
KEY
(`cid`),
KEY
`fk_course_teacher` (`teacher_id`),
CONSTRAINT
`fk_course_teacher`
FOREIGN
KEY
(`teacher_id`)
REFERENCES
`teacher` (`tid`)
) ENGINE=InnoDB AUTO_INCREMENT=5
DEFAULT
CHARSET=utf8;
-- ----------------------------
-- Records of course
-- ----------------------------
INSERT
INTO
`course`
VALUES
(
'1'
,
'生物'
,
'1'
);
INSERT
INTO
`course`
VALUES
(
'2'
,
'物理'
,
'2'
);
INSERT
INTO
`course`
VALUES
(
'3'
,
'体育'
,
'3'
);
INSERT
INTO
`course`
VALUES
(
'4'
,
'美术'
,
'2'
);
-- ----------------------------
-- Table structure for score
-- ----------------------------
DROP
TABLE
IF EXISTS `score`;
CREATE
TABLE
`score` (
`sid`
int
(11)
NOT
NULL
AUTO_INCREMENT,
`student_id`
int
(11)
NOT
NULL
,
`course_id`
int
(11)
NOT
NULL
,
`num`
int
(11)
NOT
NULL
,
PRIMARY
KEY
(`sid`),
KEY
`fk_score_student` (`student_id`),
KEY
`fk_score_course` (`course_id`),
CONSTRAINT
`fk_score_course`
FOREIGN
KEY
(`course_id`)
REFERENCES
`course` (`cid`),
CONSTRAINT
`fk_score_student`
FOREIGN
KEY
(`student_id`)
REFERENCES
`student` (`sid`)
) ENGINE=InnoDB AUTO_INCREMENT=53
DEFAULT
CHARSET=utf8;
-- ----------------------------
-- Records of score
-- ----------------------------
INSERT
INTO
`score`
VALUES
(
'1'
,
'1'
,
'1'
,
'10'
);
INSERT
INTO
`score`
VALUES
(
'2'
,
'1'
,
'2'
,
'9'
);
INSERT
INTO
`score`
VALUES
(
'5'
,
'1'
,
'4'
,
'66'
);
INSERT
INTO
`score`
VALUES
(
'6'
,
'2'
,
'1'
,
'8'
);
INSERT
INTO
`score`
VALUES
(
'8'
,
'2'
,
'3'
,
'68'
);
INSERT
INTO
`score`
VALUES
(
'9'
,
'2'
,
'4'
,
'99'
);
INSERT
INTO
`score`
VALUES
(
'10'
,
'3'
,
'1'
,
'77'
);
INSERT
INTO
`score`
VALUES
(
'11'
,
'3'
,
'2'
,
'66'
);
INSERT
INTO
`score`
VALUES
(
'12'
,
'3'
,
'3'
,
'87'
);
INSERT
INTO
`score`
VALUES
(
'13'
,
'3'
,
'4'
,
'99'
);
INSERT
INTO
`score`
VALUES
(
'14'
,
'4'
,
'1'
,
'79'
);
INSERT
INTO
`score`
VALUES
(
'15'
,
'4'
,
'2'
,
'11'
);
INSERT
INTO
`score`
VALUES
(
'16'
,
'4'
,
'3'
,
'67'
);
INSERT
INTO
`score`
VALUES
(
'17'
,
'4'
,
'4'
,
'100'
);
INSERT
INTO
`score`
VALUES
(
'18'
,
'5'
,
'1'
,
'79'
);
INSERT
INTO
`score`
VALUES
(
'19'
,
'5'
,
'2'
,
'11'
);
INSERT
INTO
`score`
VALUES
(
'20'
,
'5'
,
'3'
,
'67'
);
INSERT
INTO
`score`
VALUES
(
'21'
,
'5'
,
'4'
,
'100'
);
INSERT
INTO
`score`
VALUES
(
'22'
,
'6'
,
'1'
,
'9'
);
INSERT
INTO
`score`
VALUES
(
'23'
,
'6'
,
'2'
,
'100'
);
INSERT
INTO
`score`
VALUES
(
'24'
,
'6'
,
'3'
,
'67'
);
INSERT
INTO
`score`
VALUES
(
'25'
,
'6'
,
'4'
,
'100'
);
INSERT
INTO
`score`
VALUES
(
'26'
,
'7'
,
'1'
,
'9'
);
INSERT
INTO
`score`
VALUES
(
'27'
,
'7'
,
'2'
,
'100'
);
INSERT
INTO
`score`
VALUES
(
'28'
,
'7'
,
'3'
,
'67'
);
INSERT
INTO
`score`
VALUES
(
'29'
,
'7'
,
'4'
,
'88'
);
INSERT
INTO
`score`
VALUES
(
'30'
,
'8'
,
'1'
,
'9'
);
INSERT
INTO
`score`
VALUES
(
'31'
,
'8'
,
'2'
,
'100'
);
INSERT
INTO
`score`
VALUES
(
'32'
,
'8'
,
'3'
,
'67'
);
INSERT
INTO
`score`
VALUES
(
'33'
,
'8'
,
'4'
,
'88'
);
INSERT
INTO
`score`
VALUES
(
'34'
,
'9'
,
'1'
,
'91'
);
INSERT
INTO
`score`
VALUES
(
'35'
,
'9'
,
'2'
,
'88'
);
INSERT
INTO
`score`
VALUES
(
'36'
,
'9'
,
'3'
,
'67'
);
INSERT
INTO
`score`
VALUES
(
'37'
,
'9'
,
'4'
,
'22'
);
INSERT
INTO
`score`
VALUES
(
'38'
,
'10'
,
'1'
,
'90'
);
INSERT
INTO
`score`
VALUES
(
'39'
,
'10'
,
'2'
,
'77'
);
INSERT
INTO
`score`
VALUES
(
'40'
,
'10'
,
'3'
,
'43'
);
INSERT
INTO
`score`
VALUES
(
'41'
,
'10'
,
'4'
,
'87'
);
INSERT
INTO
`score`
VALUES
(
'42'
,
'11'
,
'1'
,
'90'
);
INSERT
INTO
`score`
VALUES
(
'43'
,
'11'
,
'2'
,
'77'
);
INSERT
INTO
`score`
VALUES
(
'44'
,
'11'
,
'3'
,
'43'
);
INSERT
INTO
`score`
VALUES
(
'45'
,
'11'
,
'4'
,
'87'
);
INSERT
INTO
`score`
VALUES
(
'46'
,
'12'
,
'1'
,
'90'
);
INSERT
INTO
`score`
VALUES
(
'47'
,
'12'
,
'2'
,
'77'
);
INSERT
INTO
`score`
VALUES
(
'48'
,
'12'
,
'3'
,
'43'
);
INSERT
INTO
`score`
VALUES
(
'49'
,
'12'
,
'4'
,
'87'
);
INSERT
INTO
`score`
VALUES
(
'52'
,
'13'
,
'3'
,
'87'
);
-- ----------------------------
-- Table structure for student
-- ----------------------------
DROP
TABLE
IF EXISTS `student`;
CREATE
TABLE
`student` (
`sid`
int
(11)
NOT
NULL
AUTO_INCREMENT,
`gender`
char
(1)
NOT
NULL
,
`class_id`
int
(11)
NOT
NULL
,
`sname`
varchar
(32)
NOT
NULL
,
PRIMARY
KEY
(`sid`),
KEY
`fk_class` (`class_id`),
CONSTRAINT
`fk_class`
FOREIGN
KEY
(`class_id`)
REFERENCES
`class` (`cid`)
) ENGINE=InnoDB AUTO_INCREMENT=17
DEFAULT
CHARSET=utf8;
-- ----------------------------
-- Records of student
-- ----------------------------
INSERT
INTO
`student`
VALUES
(
'1'
,
'男'
,
'1'
,
'理解'
);
INSERT
INTO
`student`
VALUES
(
'2'
,
'女'
,
'1'
,
'钢蛋'
);
INSERT
INTO
`student`
VALUES
(
'3'
,
'男'
,
'1'
,
'张三'
);
INSERT
INTO
`student`
VALUES
(
'4'
,
'男'
,
'1'
,
'张一'
);
INSERT
INTO
`student`
VALUES
(
'5'
,
'女'
,
'1'
,
'张二'
);
INSERT
INTO
`student`
VALUES
(
'6'
,
'男'
,
'1'
,
'张四'
);
INSERT
INTO
`student`
VALUES
(
'7'
,
'女'
,
'2'
,
'铁锤'
);
INSERT
INTO
`student`
VALUES
(
'8'
,
'男'
,
'2'
,
'李三'
);
INSERT
INTO
`student`
VALUES
(
'9'
,
'男'
,
'2'
,
'李一'
);
INSERT
INTO
`student`
VALUES
(
'10'
,
|