MySql中的查询问题（两个表列之间的LIKE）

Question

我有以下sql语句：

    SELECT a.id_payment, a.id_adjustment, a.line, b.amount, a.name, a.id_user, c.name, a.amount_before_discount, a.percentage_discount, a.amount_discount, b.date, b.sucursal 
FROM es_payment a, es_payments_successful b, es_payment_adjustment c 
WHERE a.line LIKE 'b.line%' 
AND a.id_adjustment = c.id_adjustment 
AND ((UNIX_TIMESTAMP(b.date) >= UNIX_TIMESTAMP('2011-09-01')) 
AND (UNIX_TIMESTAMP(b.date) <= UNIX_TIMESTAMP('2011-09-12'))) 
GROUP BY a.id_payment

问题是我想将a.line列与b.line列进行比较，但是它将值与字符串“b.line”进行比较，而不是此列的值，请问您能帮帮我吗？

Answer 1

WHERE a.line LIKE CONCAT(b.line, '%')

Answer 2

在哪里a.line LIKE'％'|| b.line || '％'