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Getting value of public static final field/property of a class in Java via reflection
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First retrieve the field property of the class, then you can retrieve the value. If you know the type you can use one of the get methods with null (for static fields only, in fact with a static field the argument passed to the get method is ignored entirely). Otherwise you can use ...
MySQL: how to get the difference between two timestamps in seconds
Is there a way I can make a query in MySQL that will give me the difference between two timestamps in seconds, or would I need to do that in PHP? And if so, how would I go about doing that?
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How to get a reference to a module inside the module itself?
How can I get a reference to a module from within that module? Also, how can I get a reference to the package containing that module?
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JPQL IN clause: Java-Arrays (or Lists, Sets…)?
...o any of a small but arbitrary number of values from our database. The logical way to go about this in SQL would be to build an "IN" clause. JPQL allows for IN, but it seems to require me to specify every single parameter to IN directly (as in, "in (:in1, :in2, :in3)").
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How to stop IntelliJ truncating output when I run a build?
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For me on mac this file was located at /Applications/IntelliJ IDEA 14 CE.app/Contents/bin/idea.properties
– rogerdpack
Feb 4 '15 at 18:19
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Format number to 2 decimal places
I would like to know how can I output a number with 2 decimal places, without rounding the original number.
6 Answers
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GitHub - List commits by author
...ub to list all commits made by a single author, in the browser (neither locally, e.g. via git log , nor via the API)?
2 A...
Extracting substrings in Go
...io.ReadString, the newline character is read together with the input, so I came up with the following code to trim the newline character:
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How do I convert an integer to string as part of a PostgreSQL query?
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Because the number can be up to 15 digits, you'll meed to cast to an 64 bit (8-byte) integer. Try this:
SELECT * FROM table
WHERE myint = mytext::int8
The :: cast operator is historical but convenient. Postgres also conforms...
Django admin: How to display a field that is marked as editable=False' in the model?
...he admin page to display it. Currently it hides the field altogether.. How can this be achieved ?
3 Answers
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