I need to SELECT a set of rows of a given table whose structure looks like - 1º line is the name of columns
A01 A02 A03 A04 A05 ... A200 99999 99999 10 753 99999 99999
As you can see, it has about 200 columns. It uses 99999 to model a NULL or undefined value. So, in my SELECT, i need to replace those values with NULL or even a empty String. Is it possible by using a single SELECT or should i use something else ?
ATT: you could suggest UPDATE those values with NULL - and then SELECT -, but it is a legacy system which we cannot modify them