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Reason for Column is invalid in the select list because it is not contained in either an aggregate f
...Fixing it might look like this:
SELECT a, MAX(b) AS x
FROM T
GROUP BY a
Now it's clear that you want the following result:
a x
--------
1 ghi
2 pqr
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“The page you are requesting cannot be served because of the extension configuration.” error message
I'm getting this error message when trying to run my application. I don't know how to fix it:
19 Answers
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What is the Linux equivalent to DOS pause?
...if it contains spaces. The key argument is only necessary if you want to know which key they pressed, in which case you can access it through $key.
If you are using Bash, you can also specify a timeout with -t, which causes read to return a failure when a key isn't pressed. So for example:
read -...
C fopen vs open
...incorrect and confusing because it isn't very much like the others. I will now proceed to ignore it because the important distinction here is between a C standard FILE * and an OS-specific file descriptor.
There are four main reasons to use fopen instead of open.
fopen provides you with buffering...
How to serialize an object into a string
...a.util.Base64.
Still you should use CLOB as data type because you don't know how long the serialized data is going to be.
Here is a sample of how to use it.
import java.util.*;
import java.io.*;
/**
* Usage sample serializing SomeClass instance
*/
public class ToStringSample {
public s...
Best dynamic JavaScript/JQuery Grid [closed]
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Till now I started liking jQuery Grid. trirand.com/blog/jqgrid/jqgrid.html But still I'm not sure. Keep you updated...
– Somnath
Dec 30 '11 at 13:48
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Including a groovy script in another groovy
... answered Mar 16 '15 at 10:51
snowindysnowindy
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MySQL: Quick breakdown of the types of joins [duplicate]
I would like a quick breakdown of the types of MySQL joins. I know of these, the rest I am not sure what they mean.
3 Answe...
Why doesn't Git ignore my specified file?
... it, commit removed state, add the files back and see how they are ignored now.
– Yevgeniy Afanasyev
Aug 29 '17 at 1:19
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IntelliJ and Tomcat.. Howto..?
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Hi Steven. I followed these directions but I don't know how to configure the facets and artifacts correctly. I found no way to generate a war that won't result in a 404 error because index.gsp isn't handled by grails. Could you please add some instructions regarding facets and...