How to Optimally Handle Dates in Android SQLite?

Guide to efficient date processing in Android SQLite

Efficiently managing dates in an Android SQLite database is crucial. This article answers frequently asked questions on this topic:

1. Storage type of date in SQLite

The preferred data type for storing dates in SQLite is numeric. Specifically, it is recommended to use calendar time in milliseconds.

2. Use ContentValues ​​to write date into SQLite

When inserting a date into SQLite using ContentValues, utilize the System.currentTimeMillis() method to get the current time in milliseconds. And assign this value to the corresponding date column.

3. Retrieve date from SQLite

To retrieve a date from SQLite, use the cursor.getLong() method to access the stored value. This method returns a long integer representing the date in milliseconds.

4. SQLite query sorting based on date

To sort query results by date, append the appropriate date column to the ORDER BY clause of the query. For example:

<code>SELECT * FROM table ORDER BY date_column;</code>

This query will sort the rows of the table in ascending order based on the values ​​in date_column.

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