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Why is Maven downloading the maven-metadata.xml every time?
...tory>
<id>central</id>
<url>http://gotoNexus</url>
<snapshots>
<enabled>true</enabled>
<updatePolicy>always</updatePolicy>
</snapshots>
<releases>
<enab...
What are the benefits of dependency injection containers?
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For myself one of the main reasons to use an IoC (and make use of external configuration) is around the two areas of:
Testing
Production maintenance
Testing
If you split your testing into 3 scenarios (which is fairly normal in larg...
Algorithm to calculate the number of divisors of a given number
... sieve, you will have a much better factoring method than with the sieve alone.
And this is just one of a large number of techniques that have been developed. This is a fairly simple one. It would take you a long time to learn, say, enough number theory to understand the factoring techniques base...
What is the Difference Between read() and recv() , and Between send() and write()?
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This is incorrect, there's one other difference in case of datagrams of 0 length - If a zero-length datagram is pending, read(2) and recv() with a flags argument of zero provide different behavior. In this circumstance, read(2) has...
How to prevent scrollbar from repositioning web page?
...-aligned DIV. Now, some pages need scrolling, some don't. When I move from one type to another, the appearance of a scrollbar moves the page a few pixels to the side. Is there any way to avoid this without explicitly showing the scrollbars on each page?
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Xcode warning: “Multiple build commands for output file”
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I wanted to add one thing to this. If you end up with a ton of duplicate references somehow (like I did), you can simply click "Validate Settings" and it will automatically delete duplicate references. Much easier than manually seeking them ...
How do I use a compound drawable instead of a LinearLayout that contains an ImageView and a TextView
...tool against my code. It came up with a lot of good suggestions, but this one I cannot understand.
4 Answers
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How to drop a PostgreSQL database if there are active connections to it?
...our DB
AND procpid <> pg_backend_pid();
Once you disconnect everyone you will have to disconnect and issue the DROP DATABASE command from a connection from another database aka not the one your trying to drop.
Note the renaming of the procpid column to pid. See this mailing list thread.
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What happens if you static_cast invalid value to enum class?
...cuted, its condition is evaluated and compared with each case constant. If one of the case constants is equal to the value of the condition, control is passed to the statement following the matched case label. If no case constant matches the condition, and if there is a default label, control passes...
SQL Server equivalent to Oracle's CREATE OR REPLACE VIEW
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The solutions above though they will get the job done do so at the risk of dropping user permissions. I prefer to do my create or replace views or stored procedures as follows.
IF NOT EXISTS (SELECT * FROM sys.views WHERE object_id = OBJECT_ID(N'[dbo].[vw_myView]'))
EXE...