4 votes 4 votes Databases databases sql + – srestha asked Jan 29, 2018 srestha 548 views answer comment Share Follow See all 9 Comments See all 9 9 Comments reply Show 6 previous comments ninja_hattori commented Mar 27, 2018 reply Follow Share what does A <-- B mean ? 0 votes 0 votes srestha commented Mar 27, 2018 reply Follow Share B depends on A 0 votes 0 votes Prateek Raghuvanshi commented Jul 12, 2018 reply Follow Share @srestha B depends on A here we are using renaming operator simply replace B by A 0 votes 0 votes Please log in or register to add a comment.