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Do I need to manually close an ifstream?
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How to limit UITableView row reordering to a section
... In Xamarin, the wrapper method is UIKit.UITableViewController.CustomizeMoveTarget, for anyone wondering.
– bunkerdive
Feb 23 '17 at 19:38
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Return 0 if field is null in MySQL
In MySQL, is there a way to set the "total" fields to zero if they are NULL?
5 Answers
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Proper usage of Java -D command-line parameters
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SQL query for finding records where count > 1
... named PAYMENT . Within this table I have a user ID, an account number, a ZIP code and a date. I would like to find all records for all users that have more than one payment per day with the same account number.
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Difference between exit(0) and exit(1) in Python
...ogram is exiting.
This is not Python specific and is pretty common. A non-zero exit code is treated as an abnormal exit, and at times, the error code indicates what the problem was. A zero error code means a successful exit.
This is useful for other programs, shell, caller etc. to know what happen...
How does IPython's magic %paste work?
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Is it a good idea to index datetime field in mysql?
...icient database is very broad. I'd say to just make sure that it's normalized and all appropriate columns are indexed (i.e. ones used in joins and where clauses).
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What is the most efficient way to store tags in a database?
..._ID
It might be that your web app is very very popular and need de-normalizing down the road, but it's pointless muddying the waters too early.
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Hex representation of a color with alpha channel?
...d the #RGBA format
Firefox has supported this syntax since Firefox 49 (Mozilla bug 567283).
Safari has supported this syntax since Safari 10.
Chrome has supported this syntax since Chrome 62. For earlier versions you could enable experimental web features to use this syntax. See Chromium Issue 618...