Substr function? extracting just the records with 4 digits?

Question

have a column like this in a table
SZSCAPD_SEC_SCHOOL_CEEB
364775
460460
460240
2562
164625
460240
230969I need to be able to retrieve just the values with 4 digits like 2562 and add 00 at the front, so it will ended like 002562
I am thinking in the substr function, but it won't work, because I will be extracting the first 4 digits of each number.
How I will do this? I want to only retrieve the numbers with 4 digits Then I will concatenate the 00 in front.
Thank you

Answer 1

Hi,
peace4all wrote:
... How I will do this? I want to only retrieve the numbers with 4 digits One way to do that is
WHERE   TRANSLATE ( szscapd_sec_school_ceeb
            , '123456789'
            , '000000000'
            ) = '0000'
Then I will concatenate the 00 in front.
'00' || szscapd_sec_school_ceebThis assumes that szscapd_sec_school_ceeb is a string.
If szscapd_sec_school_ceeb is a positive number, and you want to ignore any fractional part, use
WHERE   szscapd_sec_school_ceeb     >=  1000
AND     szscapd_sec_school_ceeb <  10000to find the numbers and
TO_CHAR (szscapd_sec_school_ceeb, 'FM000000')to display them as 6 digits, with leading 0's.
Edited by: Frank Kulash on Aug 20, 2010 11:01 AM
Added NUMBER alternative.