Can I read SQL Advanced Queries and Logic on EtoBox?

SQL Advanced Queries and Logic by Mansi A is a document available to read on EtoBox.

What is SQL Advanced Queries and Logic about?

This document discusses advanced SQL queries including: 1. Comparisons involving NULL values and three-valued logic in SQL. 2. Nested queries that allow values retrieved from one query to be used in another query. 3. Correlated nested queries where the inner query references attributes from the outer query. 4. EXISTS and UNIQUE functions - EXISTS returns TRUE if the nested query contains tuples, NOT EXISTS returns TRUE if empty.

Author

Mansi A

Language

EN