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Having both a Created and Last Updated timestamp columns in MySQL 4.0
...ESTAMP and ON UPDATE CURRENT_TIMESTAMP clauses. In addition, these clauses now can be used with DATETIME column definitions. For more information, see Automatic Initialization and Updating for TIMESTAMP and DATETIME.
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Inserting a Python datetime.datetime object into MySQL
... the TypeError because you need quotes around the datecolumn value.
Try:
now = datetime.datetime(2009, 5, 5)
cursor.execute("INSERT INTO table (name, id, datecolumn) VALUES (%s, %s, '%s')",
("name", 4, now))
With regards to the format, I had success with the above command (which ...
MySQL's now() +1 day
I'm using now() in MySQL query.
4 Answers
4
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Performance - Date.now() vs Date.getTime()
...ings are the same (edit semantically; performance is a little better with .now()):
var t1 = Date.now();
var t2 = new Date().getTime();
However, the time value from any already-created Date instance is frozen at the time of its construction (or at whatever time/date it's been set to). That is, if ...
How do I get a value of datetime.today() in Python that is “timezone aware”?
...ut creating your own timezone class.
On Windows, there's win32timezone.utcnow(), but that's part of pywin32. I would rather suggest to use the pytz library, which has a constantly updated database of most timezones.
Working with local timezones can be very tricky (see "Further reading" links below...
set DateTime to start of month
...
var now = DateTime.Now;
var startOfMonth = new DateTime(now.Year,now.Month,1);
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how get yesterday and tomorrow datetime in c#
...st bare in mind that if you do it this way:
DateTime yesterday = DateTime.Now.AddDays(-1);
DateTime tomorrow = DateTime.Now.AddDays(1); // Output example: 6. 02. 2016 18:09:23
then you will get the current time minus one day, and not yesterday at 00:00:00 time.
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Using current time in UTC as default value in PostgreSQL
...orary table test(
id int,
ts timestamp without time zone default (now() at time zone 'utc')
);
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Compare given date with today
...ole lot more convenient and lead to more maintainable code - we'd need to know more to truly make that judgement call.
For the correct timezone, you can use, for example,
date_default_timezone_set('America/New_York');
Click here to refer to the available PHP Timezones.
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PostgreSQL, checking date relative to “today”
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select * from mytable where mydate > now() - interval '1 year';
If you only care about the date and not the time, substitute current_date for now()
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