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How do I rename a column in a database table using SQL?
...statement:
=> SELECT * FROM Test1;
id | foo | bar
----+-----+-----
2 | 1 | 2
=> ALTER TABLE Test1 RENAME COLUMN foo TO baz;
ALTER TABLE
=> SELECT * FROM Test1;
id | baz | bar
----+-----+-----
2 | 1 | 2
...
Algorithm to randomly generate an aesthetically-pleasing color palette [closed]
...olor mix) {
Random random = new Random();
int red = random.nextInt(256);
int green = random.nextInt(256);
int blue = random.nextInt(256);
// mix the color
if (mix != null) {
red = (red + mix.getRed()) / 2;
green = (green + mix.getGreen()) / 2;
blue = ...
Output to the same line overwriting previous output?
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192
Here's code for Python 3.x:
print(os.path.getsize(file_name)/1024+'KB / '+size+' KB downloaded!...
How to make an unaware datetime timezone aware in python
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12 Answers
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RSpec controller testing - blank response.body
... mislavmislav
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2
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C/C++ check if one bit is set in, i.e. int variable
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21 Answers
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Telling gcc directly to link a library statically
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2 Answers
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Serializing with Jackson (JSON) - getting “No serializer found”?
...tMapper.setVisibility(JsonMethod.FIELD, Visibility.ANY);
For Jackson >2.0:
myObjectMapper.setVisibility(PropertyAccessor.FIELD, Visibility.ANY);
For more information and details on related configuration options, I recommend reviewing the JavaDocs on ObjectMapper.setVisibility().
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How do I tar a directory of files and folders without including the directory itself?
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238
cd my_directory/ && tar -zcvf ../my_dir.tgz . && cd -
should do the job in ...
Why modelVersion of pom.xml is necessary and always set to 4.0.0?
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It is always set to 4.0.0 in Maven 2 and 3, because, at present, there is no other model.
Notice that modelVersion contains 4.0.0. That is currently the only supported POM version, and is always required. [source]
But it wouldn't necessarily need to alwa...