07 SQL Server Constraints Explained | NOT NULL, UNIQUE, PRIMARY KEY, CHECK, DEFAULT with Examples
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07 SQL Server Constraints Explained | NOT NULL, UNIQUE, PRIMARY KEY, CHECK, DEFAULT with Examples
Learn everything about SQL Server Constraints in this beginner-friendly tutorial! In this video, we cover the introduction to constraints and explain all types except Foreign Key, including: NOT NULL UNIQUE PRIMARY KEY CHECK DEFAULT You’ll see practical examples on a Students table, understand why constraints are important, and learn how to ...
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These are the SQL questions that I practiced to pass technical rounds for data science interviews at both meta and Netflix. While the questions here and in the interviews were not technically challenging, they do test your attention to detail and your thought process. Be sure to talk through your work as you code! #datascience #dataanalyst #sql #codinginterview #techinterview
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