setIfNotExists()->setTableComment('学生表'); //设置表名称 $table->setTableCharset(Character::UTF8MB4_GENERAL_CI); //设置表字符集 $table->setTableEngine(Engine::INNODB); //设置表引擎 $table->setTableAutoIncrement(100); //设置表起始自增数 $table->int('stu_id')->setIsAutoIncrement()->setIsPrimaryKey()->setIsUnsigned()->setColumnComment('学生ID'); //创建stu_id设置主键并自动增长 $table->varchar('stu_name', 30)->setColumnComment('学生姓名'); $table->char('sex', 1)->setColumnComment('性别:1男,2女')->setDefaultValue(1); $table->int('age', 2)->setColumnComment('年龄')->setDefaultValue(0); $table->date('birthday')->setIsNotNull(false)->setColumnComment('出生日期'); $table->int('created_at', 10)->setColumnComment('创建时间'); $table->int('updated_at', 10)->setColumnComment('更新时间'); $table->normal('ind_stu_name', 'stu_name')->setIndexComment('学生姓名--普通索引');//设置索引 $table->normal('ind_age', 'age')->setIndexComment('学生年龄--普通索引');//设置索引 }); echo $stuSql . PHP_EOL . PHP_EOL; $courseSql = DDLBuilder::create('course', function (CreateTable $table) { $table->setIfNotExists()->setTableComment('课程表'); //设置表名称 $table->setTableCharset(Character::UTF8MB4_GENERAL_CI); //设置表字符集 $table->setTableEngine(Engine::INNODB); //设置表引擎 $table->int('id', 3)->setIsPrimaryKey()->setIsAutoIncrement()->setIsUnsigned()->setZeroFill()->setColumnComment('课程id'); $table->varchar('course_name', 100)->setColumnComment('课程名称'); $table->char('status', 1)->setDefaultValue(1)->setColumnComment('课程状态:1正常,0隐藏'); $table->int('created_at', 10)->setColumnComment('创建时间'); $table->int('updated_at', 10)->setColumnComment('更新时间'); $table->unique('uni_course_name', 'course_name')->setIndexComment('课程名称--唯一索引');//设置索引 }); echo $courseSql . PHP_EOL . PHP_EOL; $scoreSql = DDLBuilder::create('score', function (CreateTable $table) { $table->setIfNotExists()->setTableComment('成绩表'); //设置表名称 $table->setTableCharset(Character::UTF8MB4_GENERAL_CI); //设置表字符集 $table->setTableEngine(Engine::INNODB); //设置表引擎 $table->int('id')->setIsUnsigned()->setIsAutoIncrement()->setIsPrimaryKey()->setColumnComment('自增ID'); $table->int('stu_id')->setIsUnsigned()->setColumnComment('学生id'); $table->int('course_id')->setIsUnsigned()->setZeroFill()->setColumnComment('课程id'); $table->float('score', 3, 1)->setColumnComment('成绩'); $table->int('created_at', 10)->setColumnComment('创建时间'); $table->foreign('fk_stu_id', 'stu_id', 'student', 'stu_id') ->setOnDelete(Foreign::CASCADE)->setOnUpdate(Foreign::CASCADE); $table->foreign('fk_course_id', 'course_id', 'course', 'id') ->setOnDelete(Foreign::CASCADE)->setOnUpdate(Foreign::CASCADE); }); echo $scoreSql; //以下是输出sql语句 /* CREATE TABLE IF NOT EXISTS `student` ( `stu_id` int UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT COMMENT '学生ID', `stu_name` varchar(30) NOT NULL COMMENT '学生姓名', `sex` char(1) NOT NULL DEFAULT 1 COMMENT '性别:1男,2女', `age` int(2) NOT NULL DEFAULT 0 COMMENT '年龄', `birthday` date NULL DEFAULT NULL COMMENT '出生日期', `created_at` int(10) NOT NULL COMMENT '创建时间', `updated_at` int(10) NOT NULL COMMENT '更新时间', INDEX `ind_stu_name` (`stu_name`) COMMENT '学生姓名--普通索引', INDEX `ind_age` (`age`) COMMENT '学生年龄--普通索引' ) ENGINE = INNODB AUTO_INCREMENT = 100 DEFAULT COLLATE = 'utf8mb4_general_ci' COMMENT = '学生表'; CREATE TABLE IF NOT EXISTS `course` ( `id` int(3) UNSIGNED ZEROFILL NOT NULL PRIMARY KEY AUTO_INCREMENT COMMENT '课程id', `course_name` varchar(100) NOT NULL COMMENT '课程名称', `status` char(1) NOT NULL DEFAULT 1 COMMENT '课程状态:1正常,0隐藏', `created_at` int(10) NOT NULL COMMENT '创建时间', `updated_at` int(10) NOT NULL COMMENT '更新时间', UNIQUE INDEX `uni_course_name` (`course_name`) COMMENT '课程名称--唯一索引' ) ENGINE = INNODB DEFAULT COLLATE = 'utf8mb4_general_ci' COMMENT = '课程表'; CREATE TABLE IF NOT EXISTS `score` ( `id` int UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT COMMENT '自增ID', `stu_id` int UNSIGNED NOT NULL COMMENT '学生id', `course_id` int UNSIGNED ZEROFILL NOT NULL COMMENT '课程id', `score` float(3,1) NOT NULL COMMENT '成绩', `created_at` int(10) NOT NULL COMMENT '创建时间', CONSTRAINT `fk_stu_id` FOREIGN KEY (`stu_id`) REFERENCES `student` (`stu_id`) ON DELETE CASCADE ON UPDATE CASCADE, CONSTRAINT `fk_course_id` FOREIGN KEY (`course_id`) REFERENCES `course` (`id`) ON DELETE CASCADE ON UPDATE CASCADE ) ENGINE = INNODB DEFAULT COLLATE = 'utf8mb4_general_ci' COMMENT = '成绩表'; */