SQLite getting started, sqlite

Source: Internet
Author: User

SQLite getting started, sqlite
What is SQLite?

  • SQLite is a lightweight embedded database.
  • It occupies very low resources. In embedded devices, it may only need several hundred KB of memory.
  • It processes faster than MySql and PostgreSQL, both famous databases.
  • SQLite is non-typed.
What is a database?
  • A Database is a warehouse that organizes, stores, and manages data according to the data structure.

  • Databases can be divided into two types

    • Relational Database Service (mainstream)
    • Object-based database
  • Common relational databases

    • PC: Oracle, MySQL, SQL Server, Access, DB2, Sybase
    • Embedded \ mobile client: SQLite
  • Features of relational databases

    * Oracle, SQL Server, MySQL... the database used by the server must be installed on an independent machine and configured separately * SQLite is a file that stores the required data * SQLite is built in the MAC, you can use it directly without any need!
Types of SQLiteSQL statements in iOS development

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