What is an aggregate function?
https://www.computersprofessor.com/2017/09/what-is-aggregate-function.html
w What is an aggregate function? An aggregate function summarizes the results of an expression over a number of rows, returning a...
What is an Operator in SQL? Explain different Operators available in SQL?
https://www.computersprofessor.com/2017/09/what-is-operator-in-sql-explain.html
What is an Operator in SQL? An operator is a reserved word or a character used primarily in an SQL statement's WHERE clause to per...
Explain about Integrity Constraints with examples
https://www.computersprofessor.com/2017/09/explain-about-integrity-constraints.html
Integrity Constraints Implement the database tables, one must define the integrity constraints. Integrity means something like 'be...
