Net Business Solutions Application Support Engineer Interview Questions and Answers

SQL queries for finding odd/even rows, duplicates, and deleting duplicates. Also covers constraints, joins, and DDL/DML differences.

• To find odd/even rows, use the MOD function with a value of 2

• To find duplicate rows, use the GROUP BY clause with the HAVING clause

• To delete duplicate rows, use the DELETE statement with a subquery

• Constraints ensure data integrity by enforcing rules on columns or tables

• Joins combine data f...read more