Tutorial 4- SQL Constraints Part1 - My SQL Complete Playlist скачать в хорошем качестве

Tutorial 4- SQL Constraints Part1 - My SQL Complete Playlist

SQL constraints are used to specify any rules for the records in a table. Constraints can be used to limit the type of data that can go into a table. It ensures the accuracy and reliability of the records in the table, and if there is any violation between the constraint and the record action, the action is aborted. Constraints can be column level or table level. Column level constraints apply to a column, and table-level constraints apply to the whole table. This is the Part 1 series 1. Not Null 2. Unique 3. Primary Key 4. Foreign Key 5. Check 6. Default 7. Index #mysqltutorial Subscribe @Krish Naik Vlogs channel for more educational videos on finance and investment Please donate if you want to support the channel through GPay UPID, Gpay: krishnaik06@okicici Telegram link: https://t.me/joinchat/N77M7xRvYUd403D... #datanalyst #roadmaptobecomedatanalyst Please join as a member in my channel to get additional benefits like materials in Data Science, live streaming for Members and many more    / @krishnaik06   ----------------------------------------------------------------------------------------------------------------------- Connect with me here: Twitter:   / krishnaik06   Facebook:   / krishnaik06   instagram:   / krishnaik06   -----------------------------------------------------------------------------------------------------------------------