我正在尝试通过 INNER JOIN 和 table(users) 从 table(six_attendance, five_attendance) 获取数据。这是我尝试过的:
$query = mysql_query("SELECT *
FROM
(users
INNER JOIN six_attendance
ON users.username = six_attendance.username)
INNER JOIN five_attendance
ON users.username = five_attendance.username
WHERE six_attendance.username OR five_attendance.username ='$reg_no'");
最佳答案
$query = mysql_query("SELECT *
FROM
users
INNER JOIN six_attendance
ON users.username = six_attendance.username
INNER JOIN five_attendance
ON users.username = five_attendance.username
WHERE six_attendance.username='$reg_no' OR five_attendance.username ='$reg_no'");
关于mysql - 多个 INNER JOIN SQL ACCESS SYNTAX，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35253619/