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Log all queries in mysql
...that take 10 seconds or longer are considered slow, you can change this by setting long_query_time to the number of seconds a query must take to execute before being logged.
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Iterator invalidation rules
... and references unaffected [23.2.2.3/1]
Associative containers
[multi]{set,map}: all iterators and references unaffected [23.1.2/8]
Container adaptors
stack: inherited from underlying container
queue: inherited from underlying container
priority_queue: inherited from underlying container
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Async call with await in HttpClient never returns
...ent is not implemented correctly. The other workarounds I've found involve setting the current thread as STA which helps but is really indirect especially when you are using a 3rd party assembly and aren't aware that under the hood some call is going to wait definitely for a response that it is neve...
How to accept Date params in a GET request to Spring MVC Controller?
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@thorinkor In Spring Boot you can set the spring.mvc.date-format attribute in application.properties or add beans that implement the org.springframework.format interface (extending org.springframework.format.datetime.DateFormatter is probably the way to go). ...
Django select only rows with duplicate field values
...you can get with Django. The problem is that this will return a ValuesQuerySet with only name and count. However, you can then use this to construct a regular QuerySet by feeding it back into another query:
dupes = Literal.objects.values('name')
.annotate(Count('id'))
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Implement paging (skip / take) functionality with this query
...his is a MUST there must be ORDER BY statement
-- the paging comes here
OFFSET 10 ROWS -- skip 10 rows
FETCH NEXT 10 ROWS ONLY; -- take 10 rows
If we want to skip ORDER BY we can use
SELECT col1, col2, ...
...
ORDER BY CURRENT_TIMESTAMP
OFFSET 10 ROWS -- skip 10 rows
FETCH ...
How to check if a database exists in SQL Server?
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From a Microsoft's script:
DECLARE @dbname nvarchar(128)
SET @dbname = N'Senna'
IF (EXISTS (SELECT name
FROM master.dbo.sysdatabases
WHERE ('[' + name + ']' = @dbname
OR name = @dbname)))
-- code mine :)
PRINT 'db exists'
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How to change credentials for SVN repository in Eclipse?
...rsion runtime configuration area. On Windows this was in "C:\Documents and Settings\%USER%\Application Data\Subversion\auth\svn.simple" in one of the files with a long HEX name. Opening them in notepad, locating the one with my colleagues credentials and deleting it solved the problem. Thanks for y...
How do you make lettered lists using markdown?
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Some derivations on some platforms might interpret only a very strict subset of HTML. For example, StackOverflow doesn't support the type attribute. But Wikipedia's MediaWiki Markdown does, and the GitHub Wiki Markdown does too.
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How to filter Pandas dataframe using 'in' and 'not in' like in SQL
...c1 = ['UK', 'China'] # list
c2 = {'Germany'} # set
c3 = pd.Series(['China', 'US']) # Series
c4 = np.array(['US', 'UK']) # array
Series.isin accepts various types as inputs. The following are all valid ways of getting what you want:
df['countries'].isin(c1)
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