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How do I get current date/time on the Windows command line in a suitable format for usage in a file/
... Is it possible to load files with created date using xp_cmdshell in SQL Server ? I have tried "forfiles" command but to no avail. I have asked a question on stackoverflow, please kindly see the link @ stackoverflow.com/q/32293517/3327081
– kolunar
Sep 2 ...
Node.js vs .Net performance
...ation
nodejs: 228,887
aspnet-stripped: 105,272
Single Query
nodejs-mysql: 88,597
aspnet-stripped-raw: 47,066
Multiple Queries
nodejs-mysql: 8,878
aspnet-stripped-raw: 3,915
Plain Text
nodejs: 289,578
aspnet-stripped: 109,136
In all cases, Node.js tends to be 2x+ faster than IIS.
...
How to import multiple .csv files at once?
...
+1 seems like producing a single data frame -- the SQL UNION of all CSV files -- is the easiest to work with. Since OP didn't specify whether they want 1 data frame or many data frames, I assumed 1 data frame is best, so I am surprised the accepted answer does not do any of t...
Django dynamic model fields
..._contains='Y') | Q(eav__fever=no)
Hstore, JSON or JSONB fields in PostgreSQL
PostgreSQL supports several more complex data types. Most are supported via third-party packages, but in recent years Django has adopted them into django.contrib.postgres.fields.
HStoreField:
Django-hstore was origina...
How do I migrate a model out of one django app and into a new one?
... you want to move your app you can either rename the database table via an SQL ALTER TABLE statement, or - even simpler - just use the db_table parameter in your model's Meta class to refer to the old name.
If you've used ContentTypes or generic relations anywhere in your code so far, you will prob...
What is a magic number, and why is it bad? [closed]
... the spec.
Now, what you do is you have the 50 in different places - your SQL script (SELECT TOP 50 * FROM orders), your Website (Your Last 50 Orders), your order login (for (i = 0; i < 50; i++)) and possibly many other places.
Now, what happens when someone decides to change 50 to 25? or 75? o...
Difference between initLoader and restartLoader in LoaderManager
...y to run has changed (not the underlying data but the actual query like in SQL statement for a CursorLoader), in which case we will call restartLoader.
The Activity/Fragment life cycle has nothing to do with the decision to use one or the other method (and there's no need to keep track of the calls...
Why does X[Y] join of data.tables not allow a full outer join, or a left join?
.... The "right", "left", "inner" and "outer" strings may be more amenable to SQL users.
The "both" and "not.both" strings are my best suggestion at the moment -- but someone may have better string suggestions for the inner join and exclusive join. (I'm not sure if "exclusive" is the right terminolog...
Grouping functions (tapply, by, aggregate) and the *apply family
...ly of functions. For me, ddply() was very intuitive as I was familiar with SQL aggregation functions. ddply() became my hammer for solving many problems, some of which could have been better solved with other commands.
– JD Long
Aug 17 '10 at 19:23
...
Tactics for using PHP in a high-load site
...you measure and compare your changes.
For example, for many years, the MySQL query cache was the solution to all of our performance problems. If your site was slow, MySQL experts suggested turning the query cache on. It turns out that if you have a high write load, the cache is actually crippling....