Data base navruz toshkanov on create package uz navruz database

//DATA BASE NAVRUZ TOSHKANOV ON CREATE

package uz.navruz.database

import android.content.Context

import android.database.sqlite.SQLiteDatabase
import android.database.sqlite.SQLiteOpenHelper
import android.provider.BaseColumns

class DatabaseHelper(context: Context) : SQLiteOpenHelper(context, "User.db", null, 1) {

override fun onCreate(db: SQLiteDatabase?) {
val userTable = "CREATE TABLE ${DatabaseContainer.TABLE_NAME} (" +
"${BaseColumns._ID} INTEGER PRIMARY KEY AUTOINCREMENT," +
"${DatabaseContainer.FIRSNAME} TEXT," +
"${DatabaseContainer.LASTNAME} TEXT," +
"${DatabaseContainer.AGE} INTEGER," +
"${DatabaseContainer.COURSE} INTEGER)"

db!!.execSQL(userTable)

}

override fun onUpgrade(db: SQLiteDatabase?, oldVersion: Int, newVersion: Int) {

db!!.execSQL("DROP TABLE IF EXISTS ${DatabaseContainer.TABLE_NAME}")
}
}