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Good reasons NOT to use a relational database?
...great if you also explained the drawbacks of each choice, otherwise how is one supposed to choose? Thanks,
– Sklivvz
Sep 28 '08 at 10:31
4
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Ignoring time zones altogether in Rails and PostgreSQL
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The data type timestamptz is the short name for timestamp with time zone.
The other option timestamp is short for timestamp without time zone.
timestamptz is the preferred type in the date/time family, literally. It has typispreferred set in pg_type, which can be relevant:
Generating time ser...
Exotic architectures the standards committees care about
...
Take a look at this one
Unisys ClearPath Dorado Servers
offering backward compatibility for people who have not yet migrated all their Univac software.
Key points:
36-bit words
CHAR_BIT == 9
one's complement
72-bit non-IEEE floating point
s...
How to find the duration of difference between two dates in java?
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This answer ignores time zones which define the beginning and ending of days. This answer ignores Daylight Saving Time and other anomalies that mean a day is not always 24 hours in length. See the correct answers that use either Joda-Time or java.time...
How can one see content of stack with GDB?
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You need to use gdb's memory-display commands. The basic one is x, for examine. There's an example on the linked-to page that uses
gdb> x/4xw $sp
to print "four words (w ) of memory above the stack pointer (here, $sp) in hexadecimal (x)". The quotation is slightly paraphrased...
Significant new inventions in computing since 1980
... Windows are much better than any open source OS for the average user. No one wants to admit that.
– RussellH
Jan 12 '09 at 20:32
32
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Which Radio button in the group is checked?
...t be necessary. When you check a different RadioButton then it knows which one to uncheck… so it should know which is checked. How do I pull that information without doing a lot of if statements (or a switch).
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What does `m_` variable prefix mean?
...ssumed to be getName/setName, so getM_name is bad and you need handle them one by one.
– Leon
Jan 11 '19 at 5:53
Thank...
Eloquent Collection: Counting and Detect Empty
...model, or null otherwise. This is useful if you need or are expecting only one result from the database.
$result = Model::where(...)->first();
if ($result) { ... }
Notes / References
->first() http://laravel.com/api/4.2/Illuminate/Database/Eloquent/Collection.html#method_first
isEmpty() h...
What is a servicebus and when do I need one?
...s. You can use it also for client-server communication to give you durable one-way messaging as well as for the server to push notifications back to the client.
Specifically, you'll find NServiceBus to be quite lightweight and easy to use once you make peace with its use of queuing technology - you...