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select a,b,null,null from table1 union select null,null,c,d from table2 union select null,null,null,null,e,f from table3.
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Union select null, null, null, null, null, null, null from information_schema.tables. for a small database containing three tables. this instruction is used in sql injection I tried it and it worked but I didn't really know how it works can somebody help me...
web server operating system: Linux Ubuntu 10.04 (Lucid Lynx) web application technology: Apache 2.2.14 back-end DBMS: MySQL 5.0.12.
-/index.php?id=null union all select 1,2,3,4,concat(table_name,char(58),column_name),6, 7,8,9,10,11,12,13,14,15 from information_schema.columns—. Selects all tables and columns that go with each table seperated by a colon 2) If none of the above queries give you anything except for...
Another boring day and decided to check-out Null-Byte for some cool tut's. Found none today, So tried searching old threads and found SQL Injection Tutorials but to my surprise: There wasn't a
NULL в Системах управления базами данных (СУБД) — специальное значение (псевдозначение), которое может быть записано в поле таблицы базы данных (БД). NULL соответствует понятию «пустое поле», то есть «поле, не содержащее никакого значения».
UNION and UNION ALL are used to combine data or record sets from two different tables. One could combine more than 2 tables.
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