Solved

mySQL. SQL query. Substitute for Numeric key word.

Posted on 2016-11-02
3
72 Views
Last Modified: 2016-11-02
Let say I need to solve the problem :

With a precision of two decimal places, determine the average number of guns for the battleship classes.


SELECT AVG(numGuns+0.0)
FROM Classes
WHERE type = 'bb'

Open in new window


The query about work fine but show me result with more than 2 decimal points.

I need to write sql query that will be analog query below but will be work on mySQL server ( as far as I understand Numeric key word didn't work in mySQL server )
SELECT CAST ( AVG(numGuns+0.0) AS NUMERIC(10,2) )
FROM Classes
WHERE type = 'bb'

Open in new window


So how can I rewrite the query above in order that it'll work in mySQL server.
Thx in advance !
0
Comment
Question by:SunnyX
3 Comments
 
LVL 13

Assisted Solution

by:F Igor
F Igor earned 56 total points
ID: 41870557
You can use the FORMAT function


SELECT FORMAT( numeric_expression, decimals) FROM table

Open in new window



http://dev.mysql.com/doc/refman/5.7/en/string-functions.html#function_format
0
 
LVL 28

Accepted Solution

by:
Pawan Kumar earned 444 total points
ID: 41870612
Try..

--WITH OUT ROUNDING

SELECT TRUNCATE( AVG(numGuns) ,  2 )  AS numGuns
FROM Classes
WHERE type = 'bb'

--WITH ROUNDING

SELECT ROUND( AVG(numGuns) ,  2 )  AS numGuns
FROM Classes
WHERE type = 'bb'
0
 

Author Closing Comment

by:SunnyX
ID: 41870769
thx everybody !
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

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

If you have heard of RFC822 date formats, they can be quite a challenge in SQL Server. RFC822 is an Internet standard format for email message headers, including all dates within those headers. The RFC822 protocols are available in detail at:   ht…
Password hashing is better than message digests or encryption, and you should be using it instead of message digests or encryption.  Find out why and how in this article, which supplements the original article on PHP Client Registration, Login, Logo…
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…
In a recent question (https://www.experts-exchange.com/questions/29004105/Run-AutoHotkey-script-directly-from-Notepad.html) here at Experts Exchange, a member asked how to run an AutoHotkey script (.AHK) directly from Notepad++ (aka NPP). This video…

830 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