plsql - Assign Result Query to Variable -

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how put select max query result variable , use in while loop in plsql? example fine. 

declare counter number; num_max number:='select max(num_sequencial) ide_identificacao';  begin num_max := num_max/1000; while(counter < num_max) ..... ..

you should use select ... into clause:

declare counter number; num_max number;  begin select max(num_sequencial) num_max ide_identificacao;  num_max := num_max/1000; while condition loop    {...statements...} end loop;

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