Want to win a PS4? Go Premium and enter to win our High-Tech Treats giveaway. Enter to Win


mysql stored proc parameter question

Posted on 2011-09-06
Medium Priority
Last Modified: 2012-05-12

I have a field with text that has numbers separated by commas. I want to only return lines that have the passed number in the field (between commas).

Is there a way i can pass a number as my stored proc param and include it in my query?

Thanks in advance
Question by:basil365
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
  • 4
  • 2
  • 2
LVL 28

Expert Comment

ID: 36490039
you can run the field through a split function, but that can be substantial overhead. The best way I have come up with is to make sure the field always starts and ends with a comma and the searching

where MyField LIKE '%,Number,%'

Author Comment

ID: 36490077
i tried that but i dont know how to concatenate the variable 'Number' into the like clause?
LVL 28

Expert Comment

ID: 36490186
I belive in MySQL, it is simply:

columnName LIKE '%$MySearchTerm%'
Technology Partners: 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!


Accepted Solution

stalhw earned 1200 total points
ID: 36490193
ok, here's an example:

CREATE PROCEDURE foo.bar (IN _Number varchar(20) )
SELECT * FROM someTable
WHERE MyField LIKE CONCAT('%,',_Number,',%');

and if your MyField doesn't start and end with a comma, you'll need to do more in the WERE clause
WHERE MyField LIKE CONCAT('%,',_Number,',%')
OR MyField LIKE CONCAT(_Number,',%')
OR MyField LIKE CONCAT('%,',_Number)

LVL 28

Expert Comment

ID: 36490225
These two can return false positives:

OR MyField LIKE CONCAT(_Number,',%')
OR MyField LIKE CONCAT('%,',_Number)

For example, if the number you are looking for is "100" and the data looks like:


The two statements will return true for all the records. If you don't start and end with a comma, then you will need this:

SELECT * FROM someTable
WHERE CONCAT(',', MyField, ',') LIKE CONCAT('%,',_Number,',%');

That will ensure no false positives.

Expert Comment

ID: 36490334
No they won't return false positive...
Try it, you'll see...

a LIKE without a % in the beginning means the string must start with that we are showing so
1100,1,10 wouldn't match
same for the ending
1,10,1001 wouldn't match either

I agree that
WHERE CONCAT(',', MyField, ',') LIKE CONCAT('%,',_Number,',%');
will work (and is simple),
but my queries wouldn't not produce false positive, you are wrong about that, try it:
SELECT 1 FROM sometable WHERE '1,10,1001' LIKE '%,100'
it will return nothing, so no false positive...

LVL 28

Assisted Solution

strickdd earned 800 total points
ID: 36490352
Ah, point taken. I misread the query thinking you left the "%" before the number.

Author Closing Comment

ID: 36494168
Thanks to you both

Featured Post

NEW Veeam Agent for Microsoft Windows

Backup and recover physical and cloud-based servers and workstations, as well as endpoint devices that belong to remote users. Avoid downtime and data loss quickly and easily for Windows-based physical or public cloud-based workloads!

Question has a verified solution.

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

This post looks at MongoDB and MySQL, and covers high-level MongoDB strengths, weaknesses, features, and uses from the perspective of an SQL user.
One of the most important things in an application is the query performance. This article intends to give you good tips to improve the performance of your queries.
Video by: Steve
Using examples as well as descriptions, step through each of the common simple join types, explaining differences in syntax, differences in expected outputs and showing how the queries run along with the actual outputs based upon a simple set of dem…
Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…
Suggested Courses

597 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