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must appear in the GROUP BY clause or be used in an aggregate function
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Yes, this is a common aggregation problem. Before SQL3 (1999), the selected fields must appear...
Best practices for Storyboard login screen, handling clearing of data upon logout
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In your appDelegate.m inside your didFinishLaunchingWithOptions
//authenticatedUser: check from NSUserDefaults User credential if ...
Smooth scrolling when clicking an anchor link
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java.util.Date vs java.sql.Date
... as one long and time component as another, for example right now would be 20100221 and 154536123. These magic numbers can be used in SQL queries and will be portable from database to another and will let you avoid this part of JDBC/Java Date API:s entirely.
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map function for objects (instead of arrays)
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Best practices for API versioning? [closed]
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This is a good and a tricky question. The topic of URI design is at the same ...
What is a thread exit code?
... integer that you return from your process or thread must be values from 0-255(8bits). A zero value indicates success, while a non zero value indicates failure. Although, you can attempt to return any integer value as an exit code, only the lowest byte of the integer is returned from your process ...
How to get IP address of the device from code?
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How to remove empty cells in UITableView? [duplicate]
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edited Aug 27 '17 at 23:09
answered Jan 25 '13 at 11:11
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Ways to eliminate switch in code [closed]
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