The journey with little green men

SQLite con­tains full-text search mod­ule called FTS3, using this mod­ule you can eas­ily add fast full text search to an Android appli­ca­tion.
First you need to cre­ate vir­tual table:

CREATE VIRTUAL TABLE TableName
    USING FTS3(ColOne TEXT, ColTwo DATETIME)

Your table must con­tains at least 1 TEXT field.
The FTS3 vir­tual table acts like a reg­u­lar table, but you need to man­u­ally main­tain the indexes to keep ref­er­en­tial integrity — you should UPDATE the FTS3 table from time to time.
The full-text query in SQLite looks like this:

SELECT * FROM TableName WHERE ColOne MATCH 'search phrase'

Make sure you use MATCH instead of equals or LIKE to scan a TEXT col­umn in a vir­tual table.
There is a sam­ple appli­ca­tion to demon­strate full-text search in action:

Down­load full-text search sam­ple appli­ca­tion.