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Use of #pragma in C
...ation specific .say a situation where you want the program counter to read from the specific address where the ISR is written then you can specify ISR at that location using #pragma vector=ADC12_VECTOR and followd by interrupt rotines name and its description
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Can you use an alias in the WHERE clause in mysql?
...ts an unknown column. Is there any way to get around this issue? I need to select records that have a rating higher than x. Rating is calculated as the following alias:
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libxml install error using pip
...ke sure the development packages of libxml2 and libxslt are installed **
From the lxml documentation, assuming you are running a Debian-based distribution :
sudo apt-get install libxml2-dev libxslt-dev python-dev
For Debian based systems, it should be enough to install the known build dependenc...
How do I set up NSZombieEnabled in Xcode 4?
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⌥⌘R
(or click Menubar > Product > Scheme > Edit Scheme)
select the "Diagnostics" tab and click "Enable Zombie Objects":
This turns released objects into NSZombie instances that print console warnings when used again. This is a debugging aid that increases memory use (no objec...
What is the use of ByteBuffer in Java? [closed]
...s;
Relative bulk get methods that transfer contiguous sequences of bytes from this buffer into an array;
Relative bulk put methods that transfer contiguous sequences of bytes from a byte array or some other byte buffer into this buffer;
Absolute and relative get and put methods that read and w...
MySQL INSERT INTO table VALUES.. vs INSERT INTO table SET
...statement insert rows based on explicitly specified values. The INSERT ... SELECT form inserts rows selected from another table or tables.
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jQuery select all except first
In jQuery how do I use a selector to access all but the first of an element? So in the following code only the second and third element would be accessed. I know I can access them manually but there could be any number of elements so thats not possible. Thanks.
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Convert a string to int using sql query
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You could use CAST or CONVERT:
SELECT CAST(MyVarcharCol AS INT) FROM Table
SELECT CONVERT(INT, MyVarcharCol) FROM Table
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Rename a class in Xcode: Refactor… is grayed out (disabled). Why?
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Select the class's symbol in its header file - i.e. the bit just after @interface. Then the refactoring stuff should be enabled.
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Random record in ActiveRecord
...he first, all after are still sorted by id). If you need multiple randomly selected records you must use this approach multiple times or use the random order method provided by your database, i.e. Thing.order("RANDOM()").limit(100) for 100 randomly selected entries. (Be aware that it's RANDOM() in P...