WGU D427 DATA MANAGEMENT- APPLICATIONS 100% GUARANTEED PASS REVIEW EXAM 2025

WGU D427 DATA MANAGEMENT- APPLICATIONS 100% GUARANTEED PASS REVIEW EXAM 2025 1. These operations are collectively called ___________ _________ and are the theoretical foundation of the SQL language. Since the result of relational op erations is always a table, the result of an SQL query is also a table.: relational algebra 2. Relational Algebra operation: Select: selects a subset of rows of a table. 3. Relational Algebra operation: Project: eliminates one or more columns of a table. 4. Relational Algebra operation: Product: lists all combinations of rows of two tables. *In the example, the product operation selects all combinations of Employee (table) and Department (table) rows 5. Relational Algebra operation: Join: combines two tables by comparing related columns. 6. Relational Algebra operation: Union: selects all rows of two tables. 7. Relational Algebra operation: Intersect: selects rows common to two tables. 8. Relational Algebra operation