什么是sql语句错误？

Question

startD是日期，endD是日期，类型是字符串

 String sqlStatement = "SELECT Booking.* FROM Booking INNER JOIN Room USING (RoomID) BETWEEN " + startD + ", " + endD+ " AND RoomSize = " + type;

这是我的错误：

 com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'BETWEEN 2016-03-01, 2016-03-01 AND RoomSize = Medium' at line 1

Answer 1

请参阅手册Between Clause

在条款

之间用AND替换

Answer 2

SQL语句不正确，如果是：String sqlStatement =“SELECT Booking。* FROM Booking INNER JOIN Room USING（RoomID）WHERE someDateColumn BETWEEN”+ startD +“AND”+ endD +“AND RoomSize =”+ type ;

Answer 3

语法错误：

尝试以下方法：

String sqlStatement = "SELECT Booking.* FROM Booking INNER JOIN Room USING (RoomID) WHERE BETWEEN " + startD + " AND " + endD+ " AND RoomSize = " + type;

您缺少WHERE子句，而且，当您使用BETWEEN关键字提供范围时，您缺少AND（您已添加逗号）。