Solved

SUBSTR in WHERE clause SQl/DB2

Posted on 2011-09-13
5
10,281 Views
Last Modified: 2012-05-12
Hi,
I am using SUBSTR in a WHERE clause in an SQL DB2.statement.
SYNTAX:

WHERE
substr(ldate,1,4) = substr(mdate,1,4)

I get the following error.
"SELECT - 0 row(s), 0.000 secs]  [Error Code: -440, SQL State: 42884]  DB2 SQL Error: SQLCODE=-440, SQLSTATE=42884, SQLERRMC=SUBSTR;FUNCTION, DRIVER=3.57.82"

Is anyone familar with this?

Thanks in advance!



0
Comment
Question by:Mark1M
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
5 Comments
 
LVL 24

Expert Comment

by:jimyX
ID: 36534036
What is the data type of ldate & mdate?
0
 
LVL 42

Expert Comment

by:dqmq
ID: 36534188
just guessing, probably because substr doesn't work on dates.  Try casting/converting to a string before applying the substr function.
0
 
LVL 42

Expert Comment

by:dqmq
ID: 36534208
WHERE
substr(cast(ldate as varchar(26)),1,4) = substr(cast(mdate as varchar(26)),1,4)
0
 
LVL 45

Accepted Solution

by:
Kent Olsen earned 250 total points
ID: 36535961
Hi Mark,

What's the data type of ldate and mdate?  If they are date and/or timestamp objects, you can use any of the built-in DB2 date functions to extract the portion of the data that you want.  

Since you're extracting 4 characters, I'll assume that you're comparing years.  In DB2, the equivalent SQL would be:

  WHERE year (ldate) = year (mdate)

And of course, if they are really strings, dqmq has posted a definitive answer.  :)


Good Luck,
Kent
0
 

Author Closing Comment

by:Mark1M
ID: 36536556
Kent & Everyone,
Thank you!
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

'Between' is such a common word we rarely think about it but in SQL it has a very specific definition we should be aware of. While most database vendors will have their own unique phrases to describe it (see references at end) the concept in common …
This article describes how to use the timestamp of existing data in a database to allow Tableau to calculate the prior work day instead of relying on case statements or if statements to calculate the days of the week.
Michael from AdRem Software outlines event notifications and Automatic Corrective Actions in network monitoring. Automatic Corrective Actions are scripts, which can automatically run upon discovery of a certain undesirable condition in your network.…
Add bar graphs to Access queries using Unicode block characters. Graphs appear on every record in the color you want. Give life to numbers. Hopes this gives you ideas on visualizing your data in new ways ~ Create a calculated field in a query: …

705 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question