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Oracle 1Z0-171 Exam Syllabus Topics:

Oracle Database 23ai SQL Associate Sample Questions:

1. Which SQL function converts a string representation of a date into a date data type?

A) DATE_CONVERT
B) TO_DATE
C) CAST_TO_DATE
D) CONVERT_TO_DATE

2. Which of the following statements is true about constraints in Oracle Database?

A) Constraints cannot reference other tables.
B) Constraints can be added or modified using the ALTER TABLE statement.
C) Constraints can only be added when creating a table.
D) Constraints are automatically dropped when rows are deleted.

3. What happens when a unique index is created on a table column?

A) The column values are automatically encrypted.
B) The column can only contain NULL values.
C) The column data type is converted to a primary key.
D) The column cannot contain duplicate values.

4. What does the INTERSECT operator do in SQL?

A) Returns rows from the first query that are not present in the second query
B) Returns rows that are present in both queries
C) Combines rows from two queries and includes all duplicates
D) Combines all rows from two queries without any conditions

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

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

Solutions: