2012年12月27日 星期四
Local datetime in SQLite
This article shows how to get the local date time from SQLite
When we run the following SQL, it returns the UTC time..
select datetime('now');
2012-12-26 16:01:07
To return the local time, you can add the the parameter 'localtime'
select datetime('now', 'localtime');
2012-12-27 00:01:07
2012年12月18日 星期二
[How-to] Get the year-month-day (yyyy-mm-dd) from a date field in SQLite
SQLite is the database for the Android Application.
The following SQL is an example of getting date by SQL statement.
select _id, strftime('%Y-%m-%d', create_date) c_date from TABLE1
Returned result:
Another SQL example shows how to get counts of records by date
select strftime('%Y-%m-%d', create_date), count(strftime('%Y-%m-%d', create_date) ) from TABLE1 group by strftime('%Y-%m-%d', create_date)
More reference for the date field in SQLite can be found in the official website
http://www.sqlite.org/lang_datefunc.html
The following SQL is an example of getting date by SQL statement.
select _id, strftime('%Y-%m-%d', create_date) c_date from TABLE1
Returned result:
Another SQL example shows how to get counts of records by date
select strftime('%Y-%m-%d', create_date), count(strftime('%Y-%m-%d', create_date) ) from TABLE1 group by strftime('%Y-%m-%d', create_date)
More reference for the date field in SQLite can be found in the official website
http://www.sqlite.org/lang_datefunc.html
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