Fiserv Configuration Analyst Interview Questions and Answers

SQL joins are used to combine rows from multiple tables based on related columns, while the WHERE clause is used to filter rows based on specified conditions.

• Joins are used to retrieve data from multiple tables by specifying the related columns between them.

• The WHERE clause is used to filter rows based on specified conditions.

• Common types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• Example: SELECT...read more