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How do I execute inserts and updates in an Alembic upgrade script?
...ions as described below.
The following is an example migration script that sets up some declarative models that will be used to manipulate data in a session. The key points are:
Define the basic models you need, with the columns you'll need. You don't need every column, just the primary key and t...
Is there a Max function in SQL Server that takes two values like Math.Max in .NET?
...reater than can be stored in an int: declare @val1 int declare @val2 int set @val1 = 1500000000 set @val2 = 1500000000 SELECT 0.5 * ((@val1 + @val2) + ABS(@val1 - @val2)) -- => overflow error
– AakashM
Jun 10 '09 at 13:02
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Get the time difference between two datetimes
... having a hard time trying to do something that seems simple: geting the difference between 2 times.
19 Answers
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How do I turn off the unlimited whitespace in IntelliJ editor?
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File menu -> Settings -> Editor -> General -> Virtual Space and uncheck 'Allow placement of caret after end of line' . You may also uncheck the other options in the Virtual Space panel.
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How to find whether or not a variable is empty in Bash
...fic situation not directly mentioned in the question: if the variable is unset and the set -u option has been activated, this test will fail with unbound variable. In this case, you might prefer @alexli's solution.
– anol
May 26 '15 at 16:34
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Most efficient conversion of ResultSet to JSON?
The following code converts a ResultSet to a JSON string using JSONArray and JSONObject .
14 Answers
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git - skipping specific commits when merging
I've been using Git for about a year now and think it's fantastic, but I've just started on a second version of the project and started a new branch for it. I'm struggling a little with the best way to handle things going forward.
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Read/Write String from/to a File in Android
I want to save a file to the internal storage by getting the text inputted from EditText. Then I want the same file to return the inputted text in String form and save it to another String which is to be used later.
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ImportError in importing from sklearn: cannot import name check_build
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After installing numpy , scipy ,sklearn still has error
Solution:
Setting Up System Path Variable for Python & the PYTHONPATH Environment Variable
System Variables: add C:\Python34 into path
User Variables: add new: (name)PYTHONPATH (value)C:\Python34\Lib\site-packages;
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IN clause and placeholders
...E, COLUMN_NAME_STATUS};
String sqlTables = "Enumbers";
qb.setTables(sqlTables);
Cursor c = qb.query(db, sqlSelect, COLUMN_NAME_CODE+" IN (" +
TextUtils.join(",", Collections.nCopies(codes.length, "?")) +
")", codes,
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