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How do I show the schema of a table in a MySQL database?
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describe [db_name.]table_name;
for formatted output, or
show create table [db_name.]table_name;
for the SQL statement that can be used to create a table.
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javax.faces.application.ViewExpiredException: View could not be restored
...problem is when I log in and open another page on which I logout, then I come back to first page and I click on any link etc or refresh page I get this exception. I guess it's normal (or maybe not:)) because I logged out and session is destroyed. What should I do to redirect user to for example inde...
Auto-fit TextView for Android
Many times we need to auto-fit the font of the TextView to the boundaries given to it.
16 Answers
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SQLAlchemy: What's the difference between flush() and commit()?
...ted to the database until they are committed (if your program aborts for some reason in mid-session transaction, any uncommitted changes within are lost).
The session object registers transaction operations with session.add(), but doesn't yet communicate them to the database until session.flush() i...
How to stop and restart memcached server?
How to stop and restart memcached server 1.4.5 in linux OS from command line?
12 Answers
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How to generate a random number between a and b in Ruby?
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Or
[*a..b].sample
Array#sample
Standard in Ruby 1.8.7+.
Note: was named #choice in 1.8.7 and renamed in later versions.
But anyway, generating array need resources, and solution you already wrote is the best, you can do.
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How to unzip a list of tuples into individual lists? [duplicate]
...re I want to unzip this list into two independent lists. I'm looking for some standardized operation in Python.
2 Answers
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How to dismiss ViewController in Swift?
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What's the fastest way to merge/join data.frames in R?
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The match approach works when there is a unique key in the second data frame for each key value in the first. If there are duplicates in the second data frame then the match and merge approaches are not the same. Match is, of course, faster since it is not doing as much. In particular it never lo...
How do I get the last day of a month?
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The last day of the month you get like this, which returns 31:
DateTime.DaysInMonth(1980, 08);
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