Will Oracle 23ai make you a better DBA or Developer?

Will Oracle Database 23ai
make you a better DBA or Developer?
Sandesh Rao
Vice President
AIOps and Machine Learning
@sandeshr
Russ Lowenthal
Vice President
Database Security

Are you a DBA, or a Developer?
Show us your hands, please!
Copyright © 2024, Oracle and/or its affiliates

Sandesh Rao
Vice President
AIOps and Machine Learning
Russ Lowenthal
Vice President , Database Security
Who are we?

Oracle Database 23ai
Next-Generation Converged Database
Over 300 major new features, plus thousands of enhancements
Available today on Exadata, ODA,
Exadata Cloud@Customer, OCI, Azure and
Free Edition – and soon on Google Cloud
Major focus on
• AI for Data features
• Developer/Analyst features
• Mission-Critical features
Latest long-term support release of Oracle’s flagship database

More than 300 New Features in Oracle Database 23ai
https://apex.oracle.com / database-features/

Make modern apps and analytics
easy to generate and run
for all use cases at any scale
With Generative AI (LLM)
Oracle Database 23ai Vision

How do we deliver the Vision?
Converged Database
Complete: all modern data types, workloads, and development styles
Simple: Add a SQL Statement, not a database to support any need of modern applications
Running on
Autonomous Database
Powerful: All the benefits of converged database running on Exadata
Simple: Fully-managed cloud service

AI Vector Search
Breakthrough technology that simplifies and
optimizes searching for documents, images,
patterns, and data that have similar semantics

Specialized Vector Store?
42
16
21
50
You need to send lots of business data
since you can't predict the question
Dedicated vector databases are not good at searching or securing business data

A better solution is to store and
search both types of data together

Ultra simple and powerful
Combines customer data,
product data, and AI search
in 6 lines of SQL
Fully consistent
Single integrated solution
Find houses that are similar to this picture and
match the customer’s preferred city and budget
Combine AI Vector Search with any data in your query
SELECT …
FROM house_for_sale
WHERE price <= (SELECT budget FROM customer …)
AND city in (SELECT search_city FROM customer …)
ORDER BY vector_distance(for_sale_house_vector, :input_vector)
FETCH FIRST 10 ROWS ONLY;

Oracle AI Vector Search improves Generative AI
by augmenting prompts with detailed private content
This helps produce better and more accurate answers to
user questions
Called: Retrieval Augmented Generation (RAG)

GenAI uses the question plus
the content and general
knowledge to provide an
informed answer 4
Retrieval Augmented Generation works like this
User
A user’s natural language
question is encoded as
a vector and sent to
AI Vector Search
1
AI Vector Search finds private
content such as documents
stored in the database that match
the user's question
2
GenAI
The user's question is augmented
with the content
3

Why did you come to OC YATRA 2024?

BECOMING AN AI EXPERT

What else is on Oracle Database 23ai?
Will it make you a better DBA or Developer?

Get the best of both worlds
with JSON Duality Views

A single database can now support both relational and document data
providing the benefits of both
{
"student" : "S3245",
"name" : "Jill",
"major" : "Math",
"schedule" :
[ {
"time" : "14:00",
"course" : "Math 201",
"room" : "A102",
"teacher" : "Adam"
},
{
"time" : "16:00",
"course" : "Science 102",
"room" : "B405",
"teacher" : "Anita"
}
]
}
S CH E D UL E FO R : J IL L

Using Oracle Database API for MongoDB
Easily convert your existing application with
Oracle Database API for MongoDB

Time 4:00 PM
Room B405
Teacher Anita
Time 2:00 PM
Room A102
Teacher Adam
Math 201 Science102
Match the needs of each app use case
Time 2:00 PM Room A312 Students 60
Time 4:00 PM Room B405 Students 90
Time 6:00 PM Room A151 Students 20
Science102
Course Science 101 Teachers Adam, Alex
Course Science 102 Teachers Anita, Anna
Course Science 201 Teachers Anita, Adam
TEACHER SCHEDULE FOR ANITA
SCIENCE DEPT
COU RSE CU RR ICULU M
FOR SCIENCE
ST UD ENT SCH ED ULE FOR JIL L
M AT H M AJOR
Never
duplicates Data
Always consistent

We have a performance problem;
we need a cache!

Accelerate your applications 10x
with True Cache

True Cache
APP
Writes
Current Reads
Reads
Light-weight (nearly) disk-less Oracle instance
Deployed as a cache
Data in True Cache instances is automatically in synch
Any SQL query can be easily directed to the cache instead
of the back-end database
Conceptually, a disk-less Data Guard

Quickly resolve poor performance
caused by change in execution plan
• Simplified use of SQL Plan Management

--Loads all known plans from cursor cache, AWR,
--and automatic SQL tuning sets into a SQL plan baseline.
--Use Evolve Advisor to find the best plan.
--Then mark it as accepted.
select dbms_spm.add_verified_sql_plan_baseline('<sql_id>');

Real-Time SQL Plan Management
Addressing
SQL performance regressions
without manual intervention
Creates SQL plan baselines automatically
Operates without manual intervention
Repairs SQL performance regressions
• Detects plan change in the foreground
• Identifies a previous reference plan and checks to see which
has the best performance
• The better plan is accepted as a SQL Plan Baseline
• The SQL statement subsequently uses the better plan

Automatically recover from
certain ORA-00600 errors
• Automatic Error Mitigation

SQL> select ... from ...
ERROR at line 1:
ORA-00600: internal error code, arguments: [...]
SQL> alter session set sql_error_mitigation = 'on';
SQL> select ... from ...
n rows returned

Even wider tables ...
• Up to 4096 columns

SQL> alter system set max_columns=extended scope=spfile;

Make sure your clients are updated to 23ai
• Older clients support only up to 1000 columns
• BEWARE of row chaining

No more insecure
case-insensitive passwords
• 10G password verifies are no longer accepted
• Parameter SEC_CASE_SENSITIVE_LOGON does not exist in 23ai

Get started quickly and securely
using new developer role
• DB_DEVELOPER_ROLE

Grant privileges to an entire schema
in one command
• GRANT ... ON SCHEMA ... TO ...
• Inheritance

Oracle Database 23ai
Small, but useful features

--Regardless of whether the object exists or not,
--the DROP command don't produce an error
SQL> drop table t1;
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> drop table if exists t1 ... ;
Table dropped

--Regardless of whether the object exists or not,
--the CREATE command don't produce an error
SQL> create table t1 ( ... );
ERROR at line 1:
ORA-00955: name is already used by an existing object
SQL> create table if not exists t1 (c1 number);
Table created

--Group by expression must be written in full
--Works for HAVING clause as well
select owner, to_char(created, 'YYYYMM'), count(*)
from dba_objects
group by owner, to_char(created, 'YYYYMM');

--Group by expression must be written in full
--Works for HAVING clause as well
alter session set group_by_position_enabled=true;
select owner, to_char(created, 'YYYYMM'), count(*)
from dba_objects
group by 1, 2;

sqlplus appuser@alias_does_not_exist
ERROR:
ORA-12154: Cannot connect to database.
Could not find alias alias_does_not_exist in
/opt/oracle/product/23ai/dbhome_1/network/admin/tnsnames.ora
Help: https://docs.oracle.com/error-help/db/ora-12154/

SQL> oerr ORA-12154
Message: "Cannot connect to database. Could not find alias %s in %s."
Help: https://docs.oracle.com/error-help/db/ora-12154/
Cause: A connection to a database or other service was requested using a
connection alias but the alias specified could not be resolved into
a connect descriptor using one of the configured naming methods.
Action: Do the following:
- Check for mistakes in the connection string that you used.
- If you have a sqlnet.ora file containing a NAMES.DIRECTORY_PATH
parameter, then ensure that the parameter contains valid values.
- If you are using an alias from a tnsnames.ora file:
* Verify that the tnsnames.ora file exists, is in the proper
directory, and is accessible.
* Ensure that the alias exists in one of the tnsnames.ora files.
* Ensure that there are no syntax errors anywhere in the
tnsnames.ora file or files. Look for unmatched parentheses or
stray characters. Ensure that magic quotes are not used.
...

SQL> ping salesgold
Network service name mapping file:
/opt/oracle/product/23ai/dbhome_1/network/admin/tnsnames.ora
Attempting to contact: (DESCRIPTION = (CONNECT_TIMEOUT=5) (RETRY_COUNT=2) (RETRY_DELAY=3)
(TRANSPORT_CONNECT_TIMEOUT=3) (ADDRESS_LIST = (LOAD_BALANCE=on) (ADDRESS = (PROTOCOL =
TCP)(HOST=localhost)(PORT=1521))) (CONNECT_DATA= (SERVICE_NAME = pdb1)))
Ok (1.177 msec)

Autonomous Health Framework Insights 23ai
$ ahf analysis create --type insights • Simple interface
• Easy to navigate
• Less human error
• Insights and recommendations
• Knows about known issues
$ ahf analysis create --type insights

--Examines a BIGFILE tablespace to find objects that can be moved
--to the start of the data files. In the end, shrink the data file
--to release the space.
--Tablespace MUST be ASSM managed.
--Does not work for SYSTEM and SYSAUX.
exec dbms_space.tablespace_shrink('USERS');

the most
important change

--No longer need to select from dual
select sysdate from dual;
select sysdate;
select sysdate from dual;

Oracle Database 23ai will allow you to
become a better DBA or Developer!!
Take the chance and visit the sessions at OC YATRA to learn about
all the thrilling news in Oracle Database 23ai

DBAs
run the world
Oracle
Developers
And Oracle
shape it for the future

Thank You

Will Oracle 23ai make you a better DBA or Developer?

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