mysql - 使用 INNER JOIN 后搜索 SQL 查询

Question

当显示没有搜索的表时，它可以完美打印，当添加 where 查询(在不包含内部联接的其他搜索表中工作正常)时，它会产生语法错误。这是代码:

SELECT Date_entered, photo1, photo2, UserName, reserveName, species FROM Plant_Reserves 
                        INNER JOIN Plant_Species ON Plant_Reserves.plantID = Plant_Species.plantID 
                        INNER JOIN reserves ON Plant_Reserves.reserveID = reserves.reserveID
                        ORDER BY UserName WHERE UserName LIKE '%$search%'

这是错误的副本:

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 'WHERE UserName LIKE '%zz%'' at line 4

Answer 1

where 位于 order by

之前

SELECT Date_entered, photo1, photo2, UserName, reserveName, species 
FROM Plant_Reserves 
INNER JOIN Plant_Species ON Plant_Reserves.plantID = Plant_Species.plantID 
INNER JOIN reserves ON Plant_Reserves.reserveID = reserves.reserveID
WHERE UserName LIKE '%$search%'
ORDER BY UserName 

定义的关键字顺序为

select
from 
join
where
group by
having
order by
limit