Introduction to Databases

Introduction to Databases

Introduction to Databases, DBMS, RDBMS, Database Engine, Database Records & Tables, SQL Database Management Systems, and NoSQL Databases. Introduction to Databases What is a Database? : A database is a systematic collection of data. Databases support the storage and manipulation of data. Databases make data management easy. They do so through the use of tables. … Read more

Transaction Control Language

Transaction Control Language These commands are used for controlling the state of the transaction they are fired from. Controlling a transaction includes capabilities of committing it, rolling back the changes, identifying the SAVEPOINTs to control the ROLLBACK, etc. The command belonging to this category are:- COMMIT – used for making the changes permanent. ROLLBACK – … Read more