Hi Michael,
Le 18/03/2014 20:28, Michael Dykman a écrit :
Also, as you currently have it, the expression DATE_SUB(NOW(),
INTERVAL 24 is going to be executed once for every single candidate
row. I would suggest you temporarily memoize that like so:
select into DATE_SUB(NOW(), INTERVAL 24
Hi Morgan, Harald, and all,
Thanks for the answers.
While reading your answers, I realize one more time this problem does
not seem so obvious ... That's why I asked ;) .
Beyond the specific case I mentioned, my goal is also to get a general
discussion about theorical behaviour of MySQL while
Hi Christophe,
On 20.03.14 13:18, Christophe wrote:
Hi Michael,
Le 18/03/2014 20:28, Michael Dykman a écrit :
Also, as you currently have it, the expression DATE_SUB(NOW(),
INTERVAL 24 is going to be executed once for every single candidate
row. I would suggest you temporarily memoize that
Hello,
I would like to know if there is a way to decode the json string stored in
one of the fields as text without using triggers or stored procedures.
What I want to do is is within the query, I would like to get one row per
element within the json string.
For example: the json string is as
Hi, you probably want to perform this conversion on your client. There are
JSON parser libraries available for Java, PHP and the like. Cheers, Karr
On Mar 20, 2014, at 11:35 AM, Sukhjinder K. Narula narula...@gmail.com wrote:
Hello,
I would like to know if there is a way to decode the
Hi,
http://blog.ulf-wendel.de/2013/mysql-5-7-sql-functions-for-json-udf/
This is not the exact solution for you query, but might help you better if
you add the libraries.
*thanks,*
*-- *Kishore Kumar Vaishnav
On Thu, Mar 20, 2014 at 11:35 AM, Sukhjinder K. Narula
narula...@gmail.comwrote:
Short answer, no. There is nothing in MySQL to facilitate this. In
general, storing structured data as a blob (JSON, CSV, XML-fragment,
etc..) is an anti-pattern in a relational environment. There are
NoSQL solutions that provide the facility: Mongo comes to mind; there
are some others, I am
