23ai New Features

You are implementing AI Vector Search in Oracle Database 23ai. Which data type is mandatory for storing vector embeddings?

When using Blockchain Tables, what is the default behavior for rows that have reached their 'no drop' period?

You have a vector index and notice search performance is slow. Which index type should you use to optimize similarity search?

Which database feature is recommended for high-frequency inserts into a single table with minimal overhead?

What is the primary benefit of Lock-Free Reservations in high-concurrency environments?

Which TWO of the following statements about True Cache are correct?

Which THREE of the following are components of AI Vector Search in 23ai?

In 23ai, when using the 'JSON relational duality' feature, how are changes to the JSON document propagated to the underlying tables?

You want to use Memoptimized Write to speed up data ingestion. Which type of table should you use?

What happens if a user tries to drop a Blockchain table that still contains rows within the retention period?

When using Wide Tables, what is the impact on performance for queries that select only a small subset of columns?

For Memoptimized Write, where is the data initially stored before being written to the database?

Which TWO features of 23ai help improve performance of high-concurrency workloads?

What is the main requirement for an existing table to be converted into a Blockchain table?

In True Cache, how is consistency maintained with the primary database?

When using the VECTOR data type, what is the maximum number of dimensions supported?

Which type of operation is ideal for Blockchain tables?

Which THREE operations are permitted on Blockchain tables?

What is the primary function of the 'JSON relational duality' feature?

In the context of 23ai, what does 'True Cache' mean for application developers?

Which of the following is true regarding Vector embeddings in 23ai?

When running parallel DML in 23ai, what happens to the data if the transaction fails?

What is the purpose of the 'no drop' clause in Blockchain table creation?

Which of these is a benefit of using JSON Duality Views?

How is AI Vector Search integrated into SQL?

What is the default behavior when a session is set to use True Cache?

What happens if a Lock-Free Reservation numeric value reaches its maximum allowed limit?

Which Oracle feature allows for verifying the integrity of Blockchain rows?

How does 23ai handle vector distance calculations at scale?

You are monitoring parallel DML performance. Which view provides the best insight into current parallel server activity?

Can you use standard SQL DML on a Blockchain table?

What is the primary role of True Cache in a 3-tier architecture?

Which THREE of the following are benefits of the JSON Duality feature?

What allows Memoptimized Write to perform so quickly?

What is the primary characteristic of a Blockchain table in 23ai?

Which THREE features are enabled in 23ai to simplify database management?

How does Memoptimized Write affect data integrity?

What is the result of a 'vector similarity' search?

When configuring parallel DML, what is the effect of setting 'FORCE' on a statement?

Which component is responsible for the verification of Blockchain tables?

What is the recommended approach for updating data in a table using Lock-Free Reservations?

Which THREE configuration steps are required to implement True Cache?

An Oracle Database 23ai administrator supports an application that frequently runs ad hoc queries against a large JSON collection stored in an Oracle JSON column. Developers complain that every query must be rewritten to match the document structure, and they want the relational and JSON views of the same data to stay in sync without duplicating storage. The DBA enables JSON Relational Duality Views. Which statement correctly describes how the application benefits from this feature?

A financial services company runs an Oracle Database 23ai application that performs high-volume, concurrent inserts into a transaction history table. The DBA observes significant buffer busy waits and wants to reduce contention without changing the application. Which 23ai feature should be implemented?

Your team maintains a large Oracle Database 23ai data warehouse. A new reporting application requires the ability to store and query JSON documents alongside relational data without duplicating the data or writing complex transformation logic. The application will issue both standard SQL queries and Oracle Database API for MongoDB (Oracle API for MongoDB) commands against the same underlying data. Which 23ai feature should you implement to satisfy this requirement?

A retail company uses Oracle Database 23ai and wants to enable real-time analytics on a high-volume OLTP table without impacting transaction performance. They decide to use the True Cache feature. Which statement correctly describes how True Cache achieves this?

Your Oracle Database 23ai instance is running on an Exadata platform. You have a large table with a column of type VECTOR storing 768-dimensional embeddings. Users frequently run similarity searches using the VECTOR_DISTANCE function with the COSINE metric. To improve query performance, you create a vector index. After creation, you notice that some queries do not use the index and perform full table scans. What is the most likely reason for this behavior?

A DBA is using Oracle Database 23ai and wants to implement a schema-level privilege analysis to monitor privileges used by applications. Which two statements are true about this feature? (Choose two.)

You are designing a blockchain table in Oracle 23ai for an audit trail. You must ensure that the table provides tamper-evident storage and that users can verify the integrity of rows. Which two actions are required to set up and use a blockchain table correctly? (Choose two.)

Your Oracle Database 23ai instance uses True Cache to offload read-only queries from the primary database. A developer reports that a query against a table modified by another session returns stale data from True Cache. You need to ensure that the True Cache returns the most recent committed data for that query. Which action should you take?

You are managing a high-concurrency OLTP system on Oracle Database 23ai. Multiple sessions frequently update a single row in an inventory table, causing contention and lock waits. You want to eliminate this contention without changing the application logic. Which 23ai feature should you implement?

Your company is adopting Oracle Database 23ai and wants to store vector embeddings for an AI application. You need to create a table to store 128-dimensional vectors and perform similarity searches. Which data type should you use for the vector column?

A developer is creating a table with a lock-free reservation column to handle high-concurrency updates. The column is defined as NUMBER(5,0). After many transactions, the value reaches its maximum. What happens when a transaction attempts to reserve beyond the maximum?

A database administrator is enabling True Cache for a primary database. The application will connect to the True Cache instance for read-only queries. Which statement about the default behavior of a session connected to True Cache is correct?

A database administrator is creating a table to support high-concurrency transactions using lock-free reservations. Which clause must be included in the CREATE TABLE statement to enable lock-free reservations on a numeric column?

You are evaluating Oracle Database 23ai for a new application that requires storing and querying vector embeddings for a recommendation engine. The application will perform similarity searches on millions of vectors. Which 23ai feature should you use to efficiently store and query these vectors?

A telecommunications company is migrating a critical billing application to Oracle Database 23ai. The application performs complex analytical queries on a large partitioned table. The DBA wants to ensure that SQL execution plans remain stable after the migration and that any plan changes are automatically validated to prevent performance regressions. Which 23ai feature should be configured?