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Date comparison...database query

Posted on 2002-05-16
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Last Modified: 2012-06-27
I have a form which passes 3 values (day, month, year).

I concat. the 3 values together..

$sdate = sdate_dd + "-" + sdate_mm + "-" + sdate_yy;

how can I do a SQL query to retrieve records less than this date? I am using ORacle database.

my current query is as follows:
==
$query = "select * from tableA where sdate < $sdate";
==

but it complains with the following message
==
OCIStmtExecute: ORA-01861: literal does not match format string
===
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Question by:slok
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6 Comments
 
LVL 6

Expert Comment

by:andreif
ID: 7013465
maybe you shoud better ask this in Oracle topic?
0
 
LVL 8

Expert Comment

by:us111
ID: 7013604
oracle format is :
YYYY-MM-DD
so try
$sdate = sdate_yy."-".sdate_mm."-".sdate_dd;
0
 
LVL 40

Expert Comment

by:Richard Quadling
ID: 7013626
You should also check to make sure that the century is present in the year.

If you have a form with this in then you could ask for the century as a seperate field (select 19 and 20) and year (select 00 to 99).

Richard.
0
 
LVL 3

Author Comment

by:slok
ID: 7015359
I found the answer.

Apparently, when constructing the query statement in PHP, I need to insert quotes for the date variable and also make use of the to_date function

eg
===
$query = "select * from tableA where sdate < to_date('$sdate', 'dd-mm-yyyy')";
==

Note: take note of the single quotes around $sdate and also the use of to_date function.


Thanks all for the help. I will delete this question in one week's time.
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