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Android requires compiler compliance level 5.0 or 6.0. Found '1.7' instead. Please use Android Tools
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How to enter in a Docker container already running with a new TTY
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Get the first element of each tuple in a list in Python [duplicate]
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196
Use a list comprehension:
res_list = [x[0] for x in rows]
Below is a demonstration:
>&g...
ViewPager with Google Maps API v2: mysterious black view
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115
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I was a...
How to get a variable value if variable name is stored as string?
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You can use ${!a}:
var1="this is the real value"
a="var1"
echo "${!a}" # outputs 'this is the real value'
This is an example of indirect parameter expansion:
The basic form of parameter expansion is ${parameter}. The value of
parameter is...
What's “wrong” with C++ wchar_t and wstrings? What are some alternatives to wide characters?
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What is...
Ant task to run an Ant target only if a file exists?
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edited Feb 15 '13 at 23:49
answered Feb 6 '09 at 14:53
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Foreign key constraints: When to use ON UPDATE and ON DELETE
... And once you'll get used to database consistency you'll love PostgreSQL.
12/2017-Updating this Edit about MySQL:
as stated by @IstiaqueAhmed in the comments, the situation has changed on this subject. So follow the link and check the real up-to-date situation (which may change again in the future...
How to test if a string is basically an integer in quotes using Ruby
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135
You can use regular expressions. Here is the function with @janm's suggestions.
class String
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