Database connection varies by platform but follows similar patterns:

Android (Java/Kotlin):

SQLiteDatabase db = SQLiteDatabase.openOrCreateDatabase("/path/to/database.db", null);

iOS (Swift):

var db: OpaquePointer?
sqlite3_open("database.db", &db)

Key considerations for mobile:

• Store database in app's private directory
• Handle connection lifecycle properly
• Close connections when app goes to background
• Use connection pooling for better performance
• Consider using higher-level ORMs like Room (Android) or Core Data (iOS) that handle connections automatically