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MySQL WHERE: how to write “!=” or “not equals”?
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answered Jul 10 '12 at 20:53
RolandoMySQLDBARolandoMySQLDBA
40.6k1515 gold badges8181 silver badges124124 bronze badges
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How to copy an object in Objective-C
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edited Oct 10 '12 at 20:44
t0mm13b
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answer...
How to stage only part of a new file with git?
...;/shame>
– sehe
Jun 22 '11 at 13:20
1
Well found. I should have scrolled the man page a bit fu...
How to print the current Stack Trace in .NET without any exception?
...omeone's looking for it.
– Rory
Apr 20 '16 at 22:43
7
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What makes a SQL statement sargable?
... a function in the where clause:
SELECT ... FROM ...
WHERE Year(myDate) = 2008
The SQL optimizer can't use an index on myDate, even if one exists. It will literally have to evaluate this function for every row of the table. Much better to use:
WHERE myDate >= '01-01-2008' AND myDate < '01-...
View a file in a different Git branch without changing branches
...fic revision in Git?
How to get just one file from another branch
UPDATE 2015-01-19:
Nowadays you can use relative paths with git show a1b35:./file.txt.
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LINQ Group By into a Dictionary Object
... is immutable.
– Amit
Nov 12 '14 at 20:15
1
My 2 Cents (just 'cause it kept me struggling for an ...
Ruby, Difference between exec, system and %x() or Backticks
...this method. For example:
>> system("date")
Wed Sep 4 22:03:44 CEST 2013
=> true
The invoked program will use the current STDIN, STDOUT and STDERR objects of your Ruby program. In fact, the actual return value is either true, false or nil. In the example the date was printed through the ...
Tricky Google interview question
...y implementation of Dijkstra’s solution.
int main()
{
const int n = 20; // Generate the first n numbers
std::vector<int> v(n);
v[0] = 1;
int i2 = 0; // Index for 2
int i5 = 0; // Index for 5
int x2 = 2 * v[i2]; // Next two candida...
How do I run multiple instances of Android Studio
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answered Aug 18 '13 at 19:20
Grzegorz ŻurGrzegorz Żur
38.5k1313 gold badges9696 silver badges9191 bronze badges
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