Create a view with column num_rows - MySQL

Question

I need to create a view that has a column named row_num where it will be inserted the row number, just like an auto increment in a normal table.

Let\'s say I\'ve thi

Answer 1

I tried the example of the func_inc_var_session function.

There was a small problem of session variable initialization that I solved using the mysql IFNULL function.

Below the enhanced func_inc_var_session function.

CREATE DEFINER=`root`@`localhost` FUNCTION `func_inc_var_session`() RETURNS int(11)
begin
  SET @var := IFNULL(@var,0) + 1;
  return @var;
end