Create leading zero in Oracle

Question

I am using Adempiere which has database Oracle

I have window called Stock Code from table called M_StockCode

Answer 1

A NUMBER cannot have leading zero, a STRING can.

1. If you want to store the codes with leading zero in the database table, then you must use VARCHAR2 and not NUMBER.

2. If you want to just display the number with leading zero, then use TO_CHAR to convert the number into string.

For example,

SQL> SELECT TO_CHAR(1, '00') FROM DUAL;

TO_
---
 01

You could also use LPAD, but remember, the data type of the result would be a string and not a number.

For example,

SQL> SELECT LPAD(1, 2, '0') FROM DUAL;

LP
--
01