Solved

mysql subquery (query for function parameter)

Posted on 2014-01-10
2
272 Views
Last Modified: 2014-02-11
Not sure if this is ok to combine so many things...

If I have a table with columns:
firstname
lastname

the name "experts exchange" in firstname.

I want to search for the space, and put everything after into `lastname`. ie(firstname:experts  lastname:exchange)

Logically, this is what I would want.
update table set `lastname` = substr(`firstname`, (SELECT instr(`firstname`, ' ') FROM table));

(even that though would include the space, so I would want instr + 1. Or I could do a second pass to remove the leading space afterwards....

Thanks in advance!
0
Comment
Question by:ststesting
[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
2 Comments
 
LVL 27

Accepted Solution

by:
Cornelia Yoder earned 250 total points
ID: 39772649
You could use SUBSTRING_INDEX(lastname, " ", -1) to find the last space.

So then you would select  SUBSTRING(lastname, SUBSTRING_INDEX(lastname," ",-1)+1) to get everything following the last space.
0
 
LVL 41

Assisted Solution

by:Sharath
Sharath earned 250 total points
ID: 39773089
You can try this.
Update test
Set lastname = trim(substring_index(firstname,' ',-1));

Open in new window


http://sqlfiddle.com/#!9/785c3/1
0

Featured Post

Upcoming Webinar: Securing your MySQL/MariaDB data

Join Percona’s Chief Evangelist, Colin Charles as he presents Securing your MySQL®/MariaDB® data on Tuesday, July 11, 2017 at 7:00 am PDT / 10:00 am EDT (UTC-7).

Question has a verified solution.

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

Foreword In the years since this article was written, numerous hacking attacks have targeted password-protected web sites.  The storage of client passwords has become a subject of much discussion, some of it useful and some of it misguided.  Of cou…
When table data gets too large to manage or queries take too long to execute the solution is often to buy bigger hardware or assign more CPUs and memory resources to the machine to solve the problem. However, the best, cheapest and most effective so…
Michael from AdRem Software explains how to view the most utilized and worst performing nodes in your network, by accessing the Top Charts view in NetCrunch network monitor (https://www.adremsoft.com/). Top Charts is a view in which you can set seve…
If you’ve ever visited a web page and noticed a cool font that you really liked the look of, but couldn’t figure out which font it was so that you could use it for your own work, then this video is for you! In this Micro Tutorial, you'll learn yo…

707 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