
Java优学网MySQL内连接教程:从零掌握SQL JOIN查询,轻松管理学生选课数据
SELECT列名FROM表1INNERJOIN表2ON表1.列=表2.列CREATETABLEstudents(student_idINTPRIMARYKEY,student_nameVARCHAR(50),emailVARCHAR(100));CREA...
SELECT列名FROM表1INNERJOIN表2ON表1.列=表2.列CREATETABLEstudents(student_idINTPRIMARYKEY,student_nameVARCHAR(50),emailVARCHAR(100));CREA...