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Error: Tablespace for table xxx exists. Please DISCARD the tablespace before IMPORT
... create table innodb_table(`id` int(10) unsigned NOT NULL);
ERROR 1813 (HY000): Tablespace for table '`database_name`.`innodb_table`' exists. Please DISCARD the tablespace before IMPORT
in order to fix this, what i did was first
create table innodb_table2(`id` int(10) unsigned NOT NULL);
Query...
Best branching strategy when doing continuous integration?
...e sure what you mean by "better". I've supported teams of 1, 5, 25, 150, 1,000 and 20,000 developers working on projects that were integrated to some extent. Requirements vary and "better" is very much relative term. Do you need to backport code ever? Security fixes? If not, then your life is simple...
Is there a library function for Root mean square error (RMSE) in python?
... calculating root mean squared error in python:
import numpy as np
d = [0.000, 0.166, 0.333] #ideal target distances, these can be all zeros.
p = [0.000, 0.254, 0.998] #your performance goes here
print("d is: " + str(["%.8f" % elem for elem in d]))
print("p is: " + str(["%.8f" % elem for elem ...
MySQL maximum memory usage
... my.ini
table_definition_cache = 400
that reduced memory usage from 400,000+ kb down to 105,000kb
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Are string.Equals() and == operator really same? [duplicate]
...e happens to frequently use strings containing a particular sequence of 32,000 characters, interning the string may save 64K for each copy that would otherwise be created. But if one interns a 32,000 character string and never again uses that sequence of characters, one will permanently waste 64K o...
How can I recover the return value of a function passed to multiprocessing.Process?
...thought it was a speed related thing but when I feed pool.map a range of 1,000,000 using more than 10 processes I see at most two different pids.
– zelusp
Oct 31 '16 at 19:00
1
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Validate decimal numbers in JavaScript - IsNumeric()
...s":"Fail") + ": IsNumeric('-01') => false\n"; results += (!IsNumeric('000')?"Pass":"Fail") + ": IsNumeric('000') => false\n";
– Dan
Jan 28 '10 at 1:47
...
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...
Count work days between two dates
...
--Usually faster than CONVERT.
--0 is a date (01/01/1900 00:00:00.000)
SELECT @StartDate = DATEADD(dd,DATEDIFF(dd,0,@StartDate), 0),
@EndDate = DATEADD(dd,DATEDIFF(dd,0,@EndDate) , 0)
--If the inputs are in the wrong order, reverse them.
IF @StartDate > @End...
Convert HTML + CSS to PDF [closed]
...Why this was introduced I don't know. The default value was chosen as 100,000. Why such a low value? Again, no idea.
A bug was raised against PHP 5.2.1 for this, which is still open almost two years later.
What's horrifying about this is that when the limit is exceeded, the replace just silentl...