Create Leading Zeros
Create leading zeros only for id columns. Please use generic approach!
id data age parent_id 11 "Test" 12 123 123 "Test2 11 null 155 "Test5 19 123 111 "Test" 12 1123 1123 "Test2 11 11 1155 "Test5 19 1123 211 "Test" 12 123 2123 "Test2 11 11 2155 "Test5 19 123 2111 "Test" 12 1123 3123 "Test2 11 11 3155 "Test5 19 1123 1 "root" 9 null
id data age parent_id 0011 "Test" 12 0123 0123 "Test2 11 null 0155 "Test5 19 0123 0111 "Test" 12 1123 1123 "Test2 11 0011 1155 "Test5 19 1123 0211 "Test" 12 0123 2123 "Test2 11 0011 2155 "Test5 19 0123 2111 "Test" 12 1123 3123 "Test2 11 0011 3155 "Test5 19 1123 0001 "root" 9 null