// Example: Using indexes to optimize SQLite queries
SQLiteDatabase db = this.getWritableDatabase();
// Create an index on a frequently queried column
db.execSQL("CREATE INDEX index_name ON table_name(column_name)");
// Now perform a query using the indexed column
Cursor cursor = db.query("table_name", new String[] {"column1", "column2"},
"column_name = ?", new String[] {value},
null, null, null);
// Don't forget to close the cursor and database
if (cursor != null) {
cursor.close();
}
db.close();
How do I avoid rehashing overhead with std::set in multithreaded code?
How do I find elements with custom comparators with std::set for embedded targets?
How do I erase elements while iterating with std::set for embedded targets?
How do I provide stable iteration order with std::unordered_map for large datasets?
How do I reserve capacity ahead of time with std::unordered_map for large datasets?
How do I erase elements while iterating with std::unordered_map in multithreaded code?
How do I provide stable iteration order with std::map for embedded targets?
How do I provide stable iteration order with std::map in multithreaded code?
How do I avoid rehashing overhead with std::map in performance-sensitive code?
How do I merge two containers efficiently with std::map for embedded targets?