SQL Учебник - 55: альтер TABLE Command


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SQL JOIN - SQL Tutorial
http://www.sql-tutorial.net/sql-join.asp

The SQL expression above will select all distinct customers (their first and last names) and the total respective amount of dollars they have spent. The SQL JOIN condition has been specified after the SQL WHERE clause and says that the 2 tables have to be

Database «Ships» | Interactive tutorial on SQL | SQL-tutorial.ru
http://www.sql-tutorial.ru/en/book_database_ships.html

Ships in classes are arranged to a single project. A class is normally assigned the name of the first ship in the class under consideration (head ship); otherwise, the class name does not coincide with any ship name in the database.

SQLiteOpenHelper Tutorial - Performing CRUD in SQLite
https://www.simplifiedcoding.net/sqliteopenhelper-tutorial/

What is SQLiteOpenHelper? It is a class found inside android.database.sqlite package. It is a helper class that helps in creating the database, handling the operations and also the version management.