MySQL子查询的结果不正确

Question

This is the query created by my PHP script . The query executes successfully without any errors, but with results i am not expecting. I want the rows in the result of this query to contain all the three keywords (3D,design,PAG). But, Right now it returns results even if one key word is found. How can the query be Modified ?

SELECT ID
FROM  `catiascripts` 
WHERE  `ID` LIKE  '%3D%'
OR  `ScriptName` LIKE  '%3D%'
OR  `ScriptApplication` LIKE  '%3D%'
OR  `ScriptDescription` LIKE  '%3D%'
OR  `Customer` LIKE  '%3D%'
AND ID
IN (

SELECT ID
FROM  `catiascripts` 
WHERE  `ID` LIKE  '%design%'
OR  `ScriptName` LIKE  '%design%'
OR  `ScriptApplication` LIKE  '%design%'
OR  `ScriptDescription` LIKE  '%design%'
OR  `Customer` LIKE  '%design%'
)
AND ID
IN (

SELECT ID
FROM  `catiascripts` 
WHERE  `ID` LIKE  '%PAG%'
OR  `ScriptName` LIKE  '%PAG%'
OR  `ScriptApplication` LIKE  '%PAG%'
OR  `ScriptDescription` LIKE  '%PAG%'
OR  `Customer` LIKE  '%PAG%'
)
LIMIT 0 , 30

Answer 1

You need brackets on your and/or expression. You're violating MySQL's order-of-operations, therefore you must enforce your own with appropriate () .

and has a higher priority than or , so your query:

SELECT   p OR q OR r AND x OR y OR z ...

is being executed as

SELECT p OR q OR (r AND x) OR y OR Z

You want

SELECT (p OR q OR r) AND (x OR y OR Z) AND (...)

Relevant doc: https://dev.mysql.com/doc/refman/5.0/en/operator-precedence.html

Answer 2

SELECT ID
FROM `catiascripts` 
WHERE (
       `ID` LIKE '%3D%'
    OR `ScriptName` LIKE '%3D%'
    OR `ScriptApplication` LIKE '%3D%'
    OR `ScriptDescription` LIKE '%3D%'
    OR `Customer` LIKE '%3D%'
)
AND (
       `ID` LIKE '%design%'
    OR `ScriptName` LIKE '%design%'
    OR `ScriptApplication` LIKE '%design%'
    OR `ScriptDescription` LIKE '%design%'
    OR `Customer` LIKE '%design%'
)
AND (
       `ID` LIKE '%PAG%'
    OR `ScriptName` LIKE '%PAG%'
    OR `ScriptApplication` LIKE '%PAG%'
    OR `ScriptDescription` LIKE '%PAG%'
    OR `Customer` LIKE '%PAG%'
)
LIMIT 0 , 30