Hi Luis,
Check the setting for 'EXACT'
? set('exact')
If it is on and you do not want to change the setting, then you can use RIGHT(teste.conta, 2) == '11' or RIGHT( teste.conta, 4) == ''2111'', or you can remember the setting just before the case and switch it back just after the case
"The five senses obstruct or deform the apprehension of reality."
Jorge L. Borges?
"Premature optimization is the root of all evil in programming."
Donald Knuth, repeating C. A. R. Hoare
"To die for a religion is easier than to live it absolutely"
Jorge L. Borges