Solved

Converting epoch to h:mm within MySQL Query

Posted on 2012-03-31
6
338 Views
Last Modified: 2012-07-12
Simply query starts like...

---
SELECT apps_zapata_walks.id, apps_zapata_walks.walker_fname, apps_zapata_walks.walker_lname, apps_zapata_walks.walker_email, mdl_user.firstname as TeacherFirstName, mdl_user.lastname as TeacherLastName, mdl_user.email as TeacherEmail, mdl_groups.`name` as CampusName, apps_zapata_walks.co_teacher, apps_zapata_walks.date_of_walk, apps_zapata_walks.auto_time_in, apps_zapata_walks.auto_time_out,
---

How can I format the apps_zapata_walks.auto_time_in as hh:m within the query?

something like...

date('gia',apps_zapata_walks.auto_time_in) ???

Of course I doubt that would work but I am having trouble finding out what will.

Thank you in advance!
0
Comment
Question by:smetterd
6 Comments
 
LVL 7

Accepted Solution

by:
designatedinitializer earned 167 total points
ID: 37791913
Use this, instead of the plain column name:

EXTRACT(HOUR_MINUTE FROM apps_zapata_walks.auto_time_in) AS auto_time_hh_mm

Open in new window


Notice you have to alias it like I did.
0
 
LVL 29

Assisted Solution

by:Olaf Doschke
Olaf Doschke earned 167 total points
ID: 37792440
epoch is in UTC, you may want to convert the time into a certain time zone.

http://dev.mysql.com/doc/refman/4.1/en/date-and-time-functions.html
FROM_UNIXTIME() fits better to the epoch unix timestamp.

SELECT FROM_UNIXTIME(auto_time_in,'%H:%i') as auto_time_hh_mm

Open in new window


The reference also says:
The value is expressed in the current time zone
That is you get HH:MM in the time zone of the MySQL Server.

And you can use date(), but not within the query, mysql runs mysql functions, not php functions. But you can query the unix timestamp and when displaying it can use the PHP date() with the data fetched unchanged.

Bye, Olaf.
0
 
LVL 11

Assisted Solution

by:SANDY_SK
SANDY_SK earned 166 total points
ID: 37792491
did you try

 select DATE_FORMAT(apps_zapata_walks.auto_time_in,"%h:%i")  

Open in new window

0
 
LVL 75

Expert Comment

by:Anthony Perkins
ID: 37793771
Topics: MS SQL Server, PHP Scripting Language, SQL Query Syntax
Please request that the MS SQL Server topic be removed as it does not apply.
0
 
LVL 2

Author Comment

by:smetterd
ID: 37897082
I have fought with this for some time, but still no love. I am going to make a movie of exactly what I am trying and post it by the end of the day. Thanks for hanging in there...
0

Featured Post

Highfive Gives IT Their Time Back

Highfive is so simple that setting up every meeting room takes just minutes and every employee will be able to start or join a call from any room with ease. Never be called into a meeting just to get it started again. This is how video conferencing should work!

Join & Write a Comment

PL/SQL can be a very powerful tool for working directly with database tables. Being able to loop will allow you to perform more complex operations, but can be a little tricky to write correctly. This article will provide examples of basic loops alon…
Does the idea of dealing with bits scare or confuse you? Does it seem like a waste of time in an age where we all have terabytes of storage? If so, you're missing out on one of the core tools in every professional programmer's toolbox. Learn how to …
The viewer will learn how to dynamically set the form action using jQuery.
This tutorial will teach you the core code needed to finalize the addition of a watermark to your image. The viewer will use a small PHP class to learn and create a watermark.

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

Need Help in Real-Time?

Connect with top rated Experts

17 Experts available now in Live!

Get 1:1 Help Now