Most efficient method for adding leading 0's to an int in sql

Question

I need to return two fields from a database concatenated as \'field1-field2\'. The second field is an int, but needs to be returned as a fixed length of 5 with leading 0\'s. T

Answer 1

If you want to get a consistent number of total strings in the final result by adding different number of zeros, here is a little bit modification (for vsql)

SELECT 
  CONCAT(
    REPEAT('0', 9-length(TO_CHAR(var1))), 
    CAST(var1 AS VARCHAR(9))
  ) as var1

You can replace 9 by any number for your need!

BRD