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Oracle Database 23ai SQL Associate Sample Questions:

1. Which SQL clause can be used in Oracle to limit the number of rows returned?

A) DISTINCT
B) GROUP BY
C) FETCH FIRST n ROWS ONLY
D) WHERE

2. Which INTERVAL data type would you use to store a period of time in years and months?

A) INTERVAL MONTH TO DAY
B) INTERVAL MINUTE TO HOUR
C) INTERVAL YEAR TO MONTH
D) INTERVAL DAY TO SECOND

3. What is a sequence in Oracle Database?

A) A list of numbers stored in a table
B) A type of index used for sorting rows
C) A database object that generates a series of unique numeric values
D) A predefined set of SQL queries executed in order

4. What is the primary purpose of a primary key in a relational database?

A) To uniquely identify each record in a table
B) To establish relationships between tables
C) To store duplicate data in a table
D) To sort data in ascending order

5. Which of the following data dictionary views provides information about constraints on tables?

A) ALL_CONSTRAINTS
B) All of the above
C) USER_CONSTRAINTS
D) DBA_CONSTRAINTS

Solutions: