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Rank function in MySQL
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270
One option is to use a ranking variable, such as the following:
SELECT first_name,
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isset() and empty() - what to use
...mpty checks if the variable is set and if it is it checks it for null, "", 0, etc
Isset just checks if is it set, it could be anything not null
With empty, the following things are considered empty:
"" (an empty string)
0 (0 as an integer)
0.0 (0 as a float)
"0" (0 as a string)
NULL
FALSE
array(...
Can't su to user jenkins after installing Jenkins
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edited Mar 20 '17 at 10:18
Community♦
111 silver badge
answered Aug 6 '13 at 13:03
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Occurrences of substring in a string
...r = "helloslkhellodjladfjhello";
String findStr = "hello";
int lastIndex = 0;
int count = 0;
while(lastIndex != -1){
lastIndex = str.indexOf(findStr,lastIndex);
if(lastIndex != -1){
count ++;
lastIndex += findStr.length();
}
}
System.out.println(count);
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How can I get Knockout JS to data-bind on keypress instead of lost-focus?
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answered Dec 8 '10 at 19:25
Sergei GolosSergei Golos
4,26211 gold badge1515 silver badges1919 bronze badges
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C# - Attribute to Skip over a Method while Stepping in Debug Mode
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answered Jan 15 '09 at 0:59
Andrew RollingsAndrew Rollings
13.4k55 gold badges4848 silver badges5050 bronze badges
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Do I need to store the salt with bcrypt?
... ircmaxell
152k3333 gold badges252252 silver badges306306 bronze badges
answered Nov 10 '08 at 4:33
Greg HewgillGreg Hewgill
783k1...
What's the result of += in C and C++?
...perand after the assignment has taken place.
EDIT : The behavior of (i+=10)+=10 in C++ is undefined in C++98, but well defined in C++11. See this answer to the question by NPE for the relevant portions of the standards.
sh...
How to serialize a lambda?
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answered Apr 2 '14 at 10:09
assyliasassylias
286k6767 gold badges597597 silver badges722722 bronze badges
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How to convert a string of bytes into an int?
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110
You can also use the struct module to do this:
>>> struct.unpack("<L", "y\xcc\xa6\x...