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How to avoid the “divide by zero” error in SQL?
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In order to avoid a "Division by zero" error we have programmed it like this:
Select Case when divisor=0 then null
Else dividend / divisor
End ,,,
But here is a much nicer way of doing it:
Select dividend / NULLIF(divisor, 0) ...
Now ...
Symbolic links and synced folders in Vagrant
I want to use Vagrant to provide a common development environment to my team. The hosts are completely different:
6 Answers...
How can I clone an SQL Server database on the same server in SQL Server 2008 Express?
...licking the "Databases" branch of the SQL Server Management Studio and provide the database name while providing the source to restore. ref: stackoverflow.com/questions/10204480/…
– taynguyen
Sep 15 '15 at 13:52
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SQL Query to concatenate column values from multiple rows in Oracle
...ring aggregation techniques. A very common one is to use LISTAGG:
SELECT pid, LISTAGG(Desc, ' ') WITHIN GROUP (ORDER BY seq) AS description
FROM B GROUP BY pid;
Then join to A to pick out the pids you want.
Note: Out of the box, LISTAGG only works correctly with VARCHAR2 columns.
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How can I return to a parent activity correctly?
I have 2 activities (A and B) in my android application and I use an intent to get from activity A to activity B. The use of parent_activity is enabled:
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ListView item background via custom selector
...d finally solved it. As Romain Guy hinted to, there's another state, "android:state_selected", that you must use. Use a state drawable for the background of your list item, and use a different state drawable for listSelector of your list:
list_row_layout.xml:
<?xml version="1.0" encoding="utf-8...
How to revert a merge commit that's already pushed to remote branch?
... reinstate the tree as it was in 7c6b236.
To better understand the parent IDs, you can run:
git log 8989ee0
and
git log 7c6b236
share
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Centering floating divs within another div
...ivs,
use display: inline-block. Might also be wise to give them explicit widths too.
<div style="margin: auto 1.5em; display: inline-block;">
<img title="Nadia Bjorlin" alt="Nadia Bjorlin" src="headshot.nadia.png"/>
<br/>
Nadia Bjorlin
</div>
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Bootstrap 3 Flush footer to bottom. not fixed
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@HardlyNoticeable one is min-width to force the wrapper even if the content is less.
– Surjith S M
Jul 14 '17 at 6:34
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Android LocationClient class is deprecated but used in documentation
...ng the new/latest Location Service API... Enjoy developing :)
import android.location.Location;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.widget.TextView;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.commo...