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Insert multiple rows WITHOUT repeating the “INSERT INTO …” part of the statement?
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What happens, if one value set is faulty? Will all inserts rolled back or just the faulty row?
– netblognet
Feb 8 '16 at 7:26
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Change from SQLite to PostgreSQL in a fresh Rails project
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You can name it whatever you want. If your project name is 'calculator' I would name them calculator_production, calculator_test, calculator_development
– Chris Barretto
Jul 24 '11 at 17:28
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Going from a framework to no-framework [closed]
...osity, I decided to also start looking at standalone components and here's what I've found so far:
Templating:
PHP Template Inheritance (Regular PHP plus template inheritance)
TWIG (Django/Jinja2/Liquid-style syntax including autoescape and sandboxing. Compiles to cached PHP for speed.)
Dwoo (A f...
Unable to create/open lock file: /data/mongod.lock errno:13 Permission denied
...enied'.
First I ran sudo service mongodb stop.
Then I used ls -la to see what group & owner mongodb assigned to /var/lib/mongodb (existing path) and I changed the /data/db (new path) with chown and chgrp to match. (example: sudo chown -R mongodb:mongodb /data/db)
Then I updated the path in etc...
MySQL error: key specification without a key length
...you say "MySQL can index only the first N chars of a BLOB or TEXT column", what is the value of N?
– jameshfisher
Apr 23 '14 at 9:10
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d3 axis labeling
...f you're positioning with "x" and "y", you need to swap the positions from what I expected.
– lubar
May 29 '13 at 16:33
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Get a specific bit from byte
...Bit-shifting, to produce the number we want to compare against, is exactly what it sounds like: take the number, represented as a set of bits, and shift those bits left or right by a certain number of places. Because these are binary numbers and so each bit is one greater power-of-two than the one t...
When is JavaScript's eval() not evil?
...king command". So, when is it OK to use something dangerous? When you know what the danger is, and when you're taking the appropriate precautions.
To the point, let's look at the dangers in the use of eval(). There are probably many small hidden dangers just like everything else, but the two big ri...
Why does std::getline() skip input after a formatted extraction?
... function. And all unformatted input functions have the following code somewhat in common:
typename std::basic_istream<charT>::sentry ok(istream_object, true);
The above is a sentry object which is instantiated in all formatted/unformatted I/O functions in a standard C++ implementation. Sentr...
How do you convert a time.struct_time object into a datetime object?
...times, I cannot stress enough that it would behoove you to look closely at what your time.struct_time object is providing, vs. what other time fields may have.
Assuming you have both a time.struct_time object, and some other date/time string, compare the two, and be sure you are not losing data and...