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Failed to build gem native extension (installing Compass)
...e latest version of compass ( https://rubygems.org/gems/compass/versions/1.0.0.alpha.17 ), I get the following error.
23 An...
How to calculate the CPU usage of a process by PID in Linux from C?
...o read the cpu line from /proc/stat, which looks like:
cpu 192369 7119 480152 122044337 14142 9937 26747 0 0
This tells you the cumulative CPU time that's been used in various categories, in units of jiffies. You need to take the sum of the values on this line to get a time_total measure.
Read...
How can I get a precise time, for example in milliseconds in Objective-C?
...is earlier than now
double timePassed_ms = [date timeIntervalSinceNow] * -1000.0;
Documentation on timeIntervalSinceNow.
There are many other ways to calculate this interval using NSDate, and I would recommend looking at the class documentation for NSDate which is found in NSDate Class Reference....
How to save picture to iPhone photo library?
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edited Nov 14 '17 at 13:03
Jeremy
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answered Oct 7 '0...
How do I select a random value from an enumeration?
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answered Jun 28 '10 at 12:03
Darin DimitrovDarin Dimitrov
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How to manage REST API versioning with spring?
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+150
Regardless whether versioning can be avoided by doing backwards compatible changes (which might not always possible when you are bound...
How to detect when a UIScrollView has finished scrolling
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edited Jan 30 '19 at 14:16
Iulian Onofrei
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Check if property has attribute
...[])pi.GetCustomAttributes(typeof(IsIdentity), false);
if (attr.Length > 0) {
// Use attr[0], you'll need foreach on attr if MultiUse is true
}
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Cast int to varchar
...rchar datatype that you can cast/convert data to:
select CAST(id as CHAR(50)) as col1
from t9;
select CONVERT(id, CHAR(50)) as colI1
from t9;
See the following SQL — in action — over at SQL Fiddle:
/*! Build Schema */
create table t9 (id INT, name VARCHAR(55));
insert into t9 (id, name) v...
How can I generate an INSERT script for an existing SQL Server table that includes all stored rows?
...generate a "Create and insert all rows" script with SQL Management Studio 2008 R2.
4 Answers
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