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Adding an identity to an existing column
...s columns with this method. Adding/removing columns, changing nullability, etc. isn't allowed.
You'll need to drop foriegn keys before you do the switch and restore them after.
Same for WITH SCHEMABINDING functions, views, etc.
new table's indexes need to match exactly (same columns, same order, e...
Running a cron every 30 seconds
...ice.
Here is a simple example that logs "Hello World" every 10 seconds:
/etc/systemd/system/helloworld.service:
[Unit]
Description=Say Hello
[Service]
ExecStart=/usr/bin/logger -i Hello World
/etc/systemd/system/helloworld.timer:
[Unit]
Description=Say Hello every 10 seconds
[Timer]
OnBootSec=...
How to insert newline in string literal?
...but it's internally a bit slow because of culture specific concatenations, etc), while string concatenation - 1 resulting + 1 temporary, right?
– abatishchev
Nov 3 '10 at 9:55
1
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Maven-like dependency management for C++? [closed]
...ucture. So you can generically include sub-projects look-up for unit tests etc. without changing the script every time.
They have also lots of modules on how to find pre-installed build libraries, required for the project (like Boost, QT etc.)
Update: In the mean time there was some effort to in...
Using Phonegap for Native Application development [closed]
...options for the interface/libraries, jquery-mobile, sencha touch, jqtouch, etc.. These each offer a unique approach, and feature-set. Do some research and use one, but avoid combining. You can read about some more options, tools here: http://www.phonegap.com/tool (link updated)
Also, more on jus...
Android “Only the original thread that created a view hierarchy can touch its views.”
...tivity object. I had to do something like myActivityObject.runOnUiThread(etc)
– Kirby
Feb 17 '12 at 21:27
...
Filtering by Multiple Specific Model Properties in AngularJS (in OR relationship)
...om/a8m/angular-filter#filterby
collection | filterBy: [prop, nested.prop, etc..]: search
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Postgresql: password authentication failed for user “postgres”
...: password authentication failed for user "postgres" then check the file /etc/postgresql/8.4/main/pg_hba.conf: There must be a line like this as the first non-comment line:
local all postgres ident
For newer versions of PostgreSQL ident actually might be peer. ...
What is aspect-oriented programming?
...important things leading to code-rot, people going home to their families, etc.)
I put my hopes to composite oriented programming, which is something more and more realistic. It connects to many popular ideas and gives you something really cool.
Look at an up and coming implementation here: qi4j.o...
What is Full Text Search vs LIKE
...he term. Full text search is optimized to compute the intersection, union, etc. of these record sets, and usually provides a ranking algorithm to quantify how strongly a given record matches search keywords.
The SQL LIKE operator can be extremely inefficient. If you apply it to an un-indexed column...