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Rails 3 datatypes?
...these types to the database types, too:
For, example, note that in MS SQL Server we are using:
the old "datetime" instead "datetime2"
decimal with its default precision
text and varchar instead nvarchar
int (not possible to use tiny int/small int/big int)
image instead BLOB
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Creating a DateTime in a specific Time Zone in c#
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I don't know of any equivalent SQL Server construct, I'm afraid. I would suggest having the time zone name as one column, and the UTC value in another column. Fetch them separately and then you can create instances fairly easily.
– Jo...
Is there a “null coalescing” operator in JavaScript?
...ed, xyz.val, 5);
// xyz.val now contains 5
this solution works like the SQL coalesce function, it accepts any number of arguments, and returns null if none of them have a value. It behaves like the C# ?? operator in the sense that "", false, and 0 are considered NOT NULL and therefore count as a...
Django auto_now and auto_now_add
...edge cases where the save() might not be called , particularly when custom SQL updates or whatever are being used. 3) This is something databases are actually good at, along with referential integrity and so on. Trusting the database to get it right is a good default, because smarter minds than you ...
How do I modify a MySQL column to allow NULL?
MySQL 5.0.45
6 Answers
6
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What is the best method of handling currency/money?
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This solution also enables you to use SQL sum and friends.
– Larry K
Oct 16 '09 at 0:04
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PHP + MySQL transactions examples
I really haven't found normal example of PHP file where MySQL transactions are being used. Can you show me simple example of that?
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JavaScript function to add X months to a date
... Good catch, tad. I'm surprised that I didn't see that. Note that the T-SQL select DATEADD (month , 1, '2011-10-31') yields '2011-11-30', which to me is reasonable. I got 10 up votes with a bad answer. Cool. :-)
– Chad
Nov 26 '11 at 3:53
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Illegal pattern character 'T' when parsing a date string to java.util.Date
...er compliant with JDBC 4.2 or later. No need for strings, no need for java.sql.* classes.
Where to obtain the java.time classes?
Java SE 8, Java SE 9, and later
Built-in.
Part of the standard Java API with a bundled implementation.
Java 9 adds some minor features and fixes.
Java SE 6 and Jav...
Rails: How to list database tables/objects using the Rails console?
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table_structure seems to be specific to the sqlite adapter.
– Kelvin
Feb 2 '12 at 18:56
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