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Random strings in Python
...tring.ascii_lowercase
– dogwynn
May 11 '16 at 19:59
@BlairConrad: I'd say the question was too broad e.g., os.urandom(...
NOT IN vs NOT EXISTS
... example there the number of logical reads increase from around 400 to 500,000.
Additionally the fact that a single NULL can reduce the row count to zero makes cardinality estimation very difficult. If SQL Server assumes that this will happen but in fact there were no NULL rows in the data the rest...
How much faster is Redis than mongoDB?
...ame__, num, elapsed, num / elapsed)
if __name__ == '__main__':
num = 1000 if len(sys.argv) == 1 else int(sys.argv[1])
tests = [mongo_set, mongo_get, redis_set, redis_get] # order of tests is significant here!
do_tests(num, tests)
Results for with mongodb 1.8.1 and redis 2.2.5 and late...
How to add one day to a date? [duplicate]
...
Date today = new Date();
Date tomorrow = new Date(today.getTime() + (1000 * 60 * 60 * 24));
Date has a constructor using the milliseconds since the UNIX-epoch. the getTime()-method gives you that value. So adding the milliseconds for a day, does the trick. If you want to do such manipulations...
Get ffmpeg information in friendly way
...dows Media Video 9",
"codec_type": "video",
"codec_time_base": "1/1000",
"codec_tag_string": "WMV3",
"codec_tag": "0x33564d57",
"width": 320,
"height": 240,
"has_b_frames": 0,
"pix_fmt": "yuv420p",
"level": -99,
"r_frame_rate": "30000/1001",
"avg_frame_rat...
Find the day of a week
...
David Arenburg
85.3k1414 gold badges119119 silver badges174174 bronze badges
answered Feb 9 '12 at 18:06
GSeeGSee
...
How to get the current loop index when using Iterator?
...
om-nom-nom
59k1111 gold badges171171 silver badges221221 bronze badges
answered Jul 25 '10 at 15:52
Chris DiverChri...
Current time in microseconds in java
...first three digits will have numbers like this:
2017-12-23T12:34:56.789000000Z
New Clock In Java 9
The OpenJDK and Oracle implementations of Java 9 have a new default Clock implementation with finer granularity, up to the full nanosecond capability of the java.time classes.
See the OpenJDK ...
Java - removing first character of a string
...
moinudinmoinudin
111k4141 gold badges182182 silver badges212212 bronze badges
...
Seedable JavaScript random number generator
....
function RNG(seed) {
// LCG using GCC's constants
this.m = 0x80000000; // 2**31;
this.a = 1103515245;
this.c = 12345;
this.state = seed ? seed : Math.floor(Math.random() * (this.m - 1));
}
RNG.prototype.nextInt = function() {
this.state = (this.a * this.state + this.c) %...