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How to find gaps in sequential numbering in mysql?
... Note: This query doesn't work on temporary tables. My problem was the order number I was searching for gaps in is not distinct (the table stores order lines, so the order number they belong to repeats for each line). 1st query: 2812 rows in set (1 min 31.09 sec). Made another table by selecting...
MySQL select 10 random rows from 600K rows fast
... to gaps, to non-uniform with gaps.
http://jan.kneschke.de/projects/mysql/order-by-rand/
For most general case, here is how you do it:
SELECT name
FROM random AS r1 JOIN
(SELECT CEIL(RAND() *
(SELECT MAX(id)
FROM random)) AS id)
AS r2
...
Getting “Skipping JaCoCo execution due to missing execution data file” upon executing JaCoCo
...ue to an <argLine> configuration I added on maven-surefire-plugin in order to increase memory for Integration tests Configuring <argLine>${argLine} --my--additional-arguments--here-- </argLine> solved the problem
– Massimo Da Ros
Sep 18 '19 a...
How to use localization in C#
... strings.fr-CA.resx.
The string to be used is determined in this priority order:
From country-specific resource like strings.fr-CA.resx
From language-specific resource like strings.fr.resx
From default strings.resx
Note that language-specific resources generate satellite assemblies.
Also learn...
Can a dictionary be passed to django models on create?
... ):
import datetime
from decimal import Decimal
#Dump the items
raw = []
for key in fields:
if key not in mod.__dict__:
continue
#Copy my data
if isinstance( mod.__dict__[key], datetime.datetime ):
raw.append( str(calendar.timegm( ts.utctimetuple(mod.__dict__[...
Is it safe to parse a /proc/ file?
.../tcp, you can read it and parse each line without fear. But if you try to draw any conclusions from multiple lines at once -- beware, other processes and the kernel are changing it while you read it, and you are probably creating a bug.
...
Can the Android layout folder contain subfolders?
...ders? I just tried with no luck, even taking into account the declaration ordering.
– trevor-e
Mar 31 '14 at 21:22
8
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How to display string that contains HTML in twig template?
...
Use raw keyword, http://twig.sensiolabs.org/doc/api.html#escaper-extension
{{ word | raw }}
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...
How to get the last N records in mongodb?
...
If I understand your question, you need to sort in ascending order.
Assuming you have some id or date field called "x" you would do ...
.sort()
db.foo.find().sort({x:1});
The 1 will sort ascending (oldest to newest) and -1 will sort descending (newest to oldest.)
If you use the...
boost Composite keys - C/C++ - 清泛网 - 专注C/C++及内核技术
...
//non-unique as some subscribers might have more than one number
ordered_non_unique<
composite_key<
phonebook_entry,
member<phonebook_entry,std::string,&phonebook_entry::family_name>,
member<phonebook_entry,std::string,&phonebook_entry::given_name>
...