Solved

MySql DateDiff Query

Posted on 2011-03-12
3
701 Views
Last Modified: 2012-06-22
I'm working on a Mysql Query as follows

SELECT  `Symbol` ,  `Date` ,  `AdjClose` ,  `Strike` ,  `Type` , (
`Bid` +  `Ask`
) /2 AS  `Price` , DATEDIFF(  'Expiration',  'Date' ) AS  'Days'
FROM  `IWM`.`OptionData` AS  `OptionData`
WHERE  `AdjClose` -  `Strike` <  '10'
AND  `AdjClose` -  `Strike` >  '-10'
ORDER BY  `Days` DESC
LIMIT 0 , 30

The Problem here is that DateDiff() should Take the difference from the two fields in the table and return the days between the two dates, at least as far as I know, but it only returns NULL.

What do I need to do to return a feild that is the number of days between these two date fields.

Thanks
0
Comment
Question by:_Carthmen_
  • 2
3 Comments
 
LVL 142

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 500 total points
ID: 35119054
change:
DATEDIFF(  'Expiration',  'Date' )

into:
DATEDIFF(  `Expiration`,  `Date` )
0
 

Author Comment

by:_Carthmen_
ID: 35119199
I copy pasted your change as:

SELECT `Symbol`, `Date`, `AdjClose`, `Strike`, `Type`, ( `Bid` + `Ask` ) / 2 AS `Price`, DATEDIFF(  `Expiration`,  `Date` ) AS `Days` FROM `IWM`.`OptionData` AS `OptionData` WHERE `AdjClose` - `Strike` < '10' AND `AdjClose` - `Strike` > '-10'

But still no go with it.
0
 

Author Comment

by:_Carthmen_
ID: 35119220
never mind, worked fine, my bad. Thanks
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

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

I'm trying, I really am. But I've seen so many wrong approaches involving date(time) boundaries I despair about my inability to explain it. I've seen quite a few recently that define a non-leap year as 364 days, or 366 days and the list goes on. …
Read about achieving the basic levels of HRIS security in the workplace.
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…

914 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

19 Experts available now in Live!

Get 1:1 Help Now