Database Archive

In this post, I am installing postgres on ubuntu and then will perform different sql operations on it. Installation commands may vary with other distributions like CentOS or Mac. To install: [crayon-5cba64f93ded1282703123/] This will also install other dependencies. To connect to Postgres: [crayon-5cba64f93dee8177390599/] To check the login info, use the following command [crayon-5cba64f93def0049239161/] By default, PostgreSQL will

  Relational database management system (RDBMS) A relational database like SQL is a collection of data items organized in tables. ACID is a set of properties of relational database transactions. Atomicity – Each transaction is all or nothing Consistency – Any transaction will bring the database from one valid state to another Isolation – Executing transactions concurrently has the same