Question

I have a database/table in SQLITE using the following structure

CREATE TABLE milestones ( 
    ID       INT( 10 )        NOT NULL,
    Title    VARCHAR( 50 )    DEFAULT NULL,
    mYear    INT( 11 )        NOT NULL,
    mMonth   INT( 11 )        DEFAULT NULL,
    mDay     INT( 11 )    DEFAULT NULL,
    mText    VARCHAR( 2000 )  NOT NULL,
    Theme1   VARCHAR( 50 )    DEFAULT NULL,
    Theme2   VARCHAR( 50 )    DEFAULT NULL,
    ImageURL VARCHAR( 50 )    DEFAULT NULL,
    PRIMARY KEY ( ID ) 
);

I am using the following query to get the 5 nearest dates in relationship to today’s date.

SELECT dtable.ID, dtable.Date 
FROM(SELECT ID, date(mYear||'-'||mMonth||'-'||mDay) as Date 
FROM milestones
WHERE mMonth IS NOT NULL AND mDay IS NOT NULL AND mMonth ="+varMonth+")AS dtable
ORDER BY ABS("+varDay+"-date(dtable.Date, '%d'))
LIMIT 5;

The problems using this query is that I am only getting records with the date format yyyy-mm-dd.
If there is any record with 1 digit month or day ( the format yyyy-m-d or yyyy-mm-d or yyyy-m-dd) it doesn’t show in the result.

How can I solve this problem without changing the datatype of mMonth or mDay?

Answer 1

If you want to pad a string with zeros to be sure it is 2-char wide, you can use this simple dirty trick with the few SQLite builtin available functions:

SUBSTR('00'||month,-2)