在MYSQL中使用哪个子句而不是IN子句

时间：2014-07-25 09:21:08

标签： php mysql

我的问题是

使用PHP的MYSQL中使用子句代替 IN Clause

因为 IN子句限制1024个字符。

我的角色限制超过1024个字符。

SELECT * FROM TblUser
     WHERE Status != 'Deleted' AND UserId IN (0,10,11,12,13,14,15,22,45,114,144,155,156,167,211,439,440,441,443,445,450,455,456,457,458,459,1111,1154,1156,1165,1451,1541,11111,11112,11113,11114,11115,11116,11117,11118,11119,11656,15451,16561,17671,18781,33131,33311,33411,54511,111110,111111,111112,111113,111114,111115,111116,111117,111118,111119,111120,111121,111122,111123,111124,111125,111126,111127,111128,111129,111130,111131,111132,111133,111134,111135,111136,111137,111138,111139,111140,111141,111142,111143,111144,111145,111146,111147,111148,111149,111150,111151,111152,111153,111154,111155,111156,111157,111158,111159,111160,111161,111162,111163,111164,111165,111166,111167,111168,111169,111170,111171,111172,111173,111174,111175,111176,111177,111178,111179,111180,111181,111182,111183,111184,111185,111186,111187,111188,111189,111190,111191,111192,111193,111194,111195,111196,111197,111198,111199,1111100,11112101,11112102,11112103,11112104,11112105,11112106,11112107,11112108,11112109,11112110,11112111,11112112,11112113,11112114,11112115,11112116,11112117,11112118,11112119,11112120,11112121,11112122,11112123,11112124,11112125,11112126,11112127,11112128,11112129,11112130,11112131,11112132,11112133,11112134,11112135,11112136,11112137,11112138,11112139,11112140,11112141,11112142,11112143,11112144,11112145,11112146,11112147,11112148,11112149,11112150,11112151,11112152,11112153,11112154,11112155,11112156,11112157,11112158,11112159,11112160,11112161,11112162,11112163,11112164,11112165,11112166,11112167,11112168,11112169,11112170,11112171,11112172,11112173,11112174,11112175,11112176,11112177,11112178,11112179,11112180,11112181,11112182,11112183,11112184,11112185,11112186,11112187,11112188,11112189,11112190,11112191,11112192,11112193,11112194,11112195,11112196,11112197,11112198,11112199,11112200);

请帮助使用哪个条款代替MYSQL中的 IN Clause ？

5 个答案:

答案 0 :(得分：2)

是的，您在IN语句中受限制，您可以做的一件事是创建一个存储值的临时表。 

CREATE TEMPORARY TABLE IF NOT EXISTS temp AS (SELECT userid FROM tbluser);

在PHP中创建INSERT INTO脚本：

$str = '0,10,11,12,13,14,15,22,45,114,144,155,156,167,211,439,440,441,443,445,450,455,456,457,458,459,1111,1154,1156,1165,1451,1541,11111,11112,11113,11114,11115,11116,11117,11118,11119,11656,15451,16561,17671,18781,33131,33311,33411,54511,111110,111111,111112,111113,111114,111115,111116,111117,111118,111119,111120,111121,111122,111123,111124,111125,111126,111127,111128,111129,111130,111131,111132,111133,111134,111135,111136,111137,111138,111139,111140,111141,111142,111143,111144,111145,111146,111147,111148,111149,111150,111151,111152,111153,111154,111155,111156,111157,111158,111159,111160,111161,111162,111163,111164,111165,111166,111167,111168,111169,111170,111171,111172,111173,111174,111175,111176,111177,111178,111179,111180,111181,111182,111183,111184,111185,111186,111187,111188,111189,111190,111191,111192,111193,111194,111195,111196,111197,111198,111199,1111100,11112101,11112102,11112103,11112104,11112105,11112106,11112107,11112108,11112109,11112110,11112111,11112112,11112113,11112114,11112115,11112116,11112117,11112118,11112119,11112120,11112121,11112122,11112123,11112124,11112125,11112126,11112127,11112128,11112129,11112130,11112131,11112132,11112133,11112134,11112135,11112136,11112137,11112138,11112139,11112140,11112141,11112142,11112143,11112144,11112145,11112146,11112147,11112148,11112149,11112150,11112151,11112152,11112153,11112154,11112155,11112156,11112157,11112158,11112159,11112160,11112161,11112162,11112163,11112164,11112165,11112166,11112167,11112168,11112169,11112170,11112171,11112172,11112173,11112174,11112175,11112176,11112177,11112178,11112179,11112180,11112181,11112182,11112183,11112184,11112185,11112186,11112187,11112188,11112189,11112190,11112191,11112192,11112193,11112194,11112195,11112196,11112197,11112198,11112199,11112200';

$ids = explode(',', $str);
foreach ($ids as $value){
    echo 'INSERT INTO temp VALUES(' . $value . '); </br>';

}

但是更改mysqli查询的回显。

然后：

SELECT * FROM tbluser u
where status !='Deleted'
And exists(select * from temp u1 where u1.userid = u.userid)

或者您可以inner join temp u1 on u1.userid = u.userid

答案 1 :(得分：2)

IN语句中使用的值列表是否始终相同，或者列出其他查询的结果？如果是后者，您可以将该查询用作subquery：

SELECT * FROM tbluser 
WHERE status != 'Deleted' 
AND userid IN 
    ( SELECT userid FROM sometable WHERE ... )

答案 2 :(得分：1)

@Abid 正如您在本案例中提到的问题 @Guss 是对的。

我在想如果 IN 子句中提到的值来自 GROUP_CONCAT ，那么可能存在以逗号分隔的重复值。因此，为了消除重复，我们可以使用 DISTINCT 。

例如：

SELECT GROUP_CONCAT(UserId) FROM sometable

以上查询可以提供重复值。

SELECT GROUP_CONCAT(DISTINCT UserId) FROM sometable

SELECT t1.UserRoleId, t1.EntityId, GROUP_CONCAT( DISTINCT t1.PermissionId ) AS Permissions
FROM userpermission t1, bill_companies t2
WHERE t1.Status =  'Active'
AND t2.status =  'Active'
AND UserGroupId
IN ( 84, 85, 86 ) 
LIMIT 0 , 30

以上查询为您提供了没有重复的用户ID。这也可以减少逗号分隔ID的大小。

希望这会有所帮助。

答案 3 :(得分：0)

如果有ID跟随增量e，您可以使用php创建组。 G。 1,2,3并用OR替换它们（id> = 1 AND id＆lt; = 3）

替代方法：

使用间隔（大于和小于）搜索列表和查询中的最大和最小ID，并使用php来完成工作。

答案 4 :(得分：0)

如果你真的想避免使用IN那么你可以使用FIND_IN_SET（）： - 

SELECT * FROM TblUser
WHERE Status != 'Deleted' AND FIND_IN_SET(UserId, '0,10,11,12,13,14,15,22,45,114,144,155,156,167,211,439,440,441,443,445,450,455,456,457,458,459,1111,1154,1156,1165,1451,1541,11111,11112,11113,11114,11115,11116,11117,11118,11119,11656,15451,16561,17671,18781,33131,33311,33411,54511,111110,111111,111112,111113,111114,111115,111116,111117,111118,111119,111120,111121,111122,111123,111124,111125,111126,111127,111128,111129,111130,111131,111132,111133,111134,111135,111136,111137,111138,111139,111140,111141,111142,111143,111144,111145,111146,111147,111148,111149,111150,111151,111152,111153,111154,111155,111156,111157,111158,111159,111160,111161,111162,111163,111164,111165,111166,111167,111168,111169,111170,111171,111172,111173,111174,111175,111176,111177,111178,111179,111180,111181,111182,111183,111184,111185,111186,111187,111188,111189,111190,111191,111192,111193,111194,111195,111196,111197,111198,111199,1111100,11112101,11112102,11112103,11112104,11112105,11112106,11112107,11112108,11112109,11112110,11112111,11112112,11112113,11112114,11112115,11112116,11112117,11112118,11112119,11112120,11112121,11112122,11112123,11112124,11112125,11112126,11112127,11112128,11112129,11112130,11112131,11112132,11112133,11112134,11112135,11112136,11112137,11112138,11112139,11112140,11112141,11112142,11112143,11112144,11112145,11112146,11112147,11112148,11112149,11112150,11112151,11112152,11112153,11112154,11112155,11112156,11112157,11112158,11112159,11112160,11112161,11112162,11112163,11112164,11112165,11112166,11112167,11112168,11112169,11112170,11112171,11112172,11112173,11112174,11112175,11112176,11112177,11112178,11112179,11112180,11112181,11112182,11112183,11112184,11112185,11112186,11112187,11112188,11112189,11112190,11112191,11112192,11112193,11112194,11112195,11112196,11112197,11112198,11112199,11112200')

然而，IN子句中条目数的唯一限制是由max_allowed_pa​​cket设置的（正如其他人所说的那样），同样的限制将适用于此。

max_allowed_packet

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