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Oracle Database 23ai SQL Associate Sample Questions:

1. How are NULL values treated in relational databases?

A) NULL values represent missing or unknown data.
B) NULL values are treated as empty strings.
C) NULL values are treated as zero.
D) NULL values are not allowed in relational databases.

2. Which command creates a new role in Oracle Database?

A) CREATE NEW ROLE role_name;
B) CREATE ROLE role_name;
C) ADD ROLE role_name;

3. Which type of INSERT statement allows inserting rows into multiple tables using a single SELECT query?

A) Insert rows into multiple tables without conditions
B) Insert rows into a table only when a condition is met
C) Insert rows into multiple tables simultaneously
D) Insert rows into a single table based on values in other tables

4. Which data dictionary view provides information about all tables accessible to the current user?

A) DBA_TABLES
B) USER_TABLES
C) ALL_TABLES
D) SESSION_TABLES

5. What happens when a temporary table is created in Oracle Database?

A) It is created for the duration of a user session or transaction.
B) It cannot have any constraints.
C) It is stored in external files.
D) It is permanently stored in the database.

Solutions: