OutSystems Developer with Oracle Database Salary in 2024

Where is Oracle Database used?

Financial Sector Juggernauts

• Banks love hoarding cash as much as a dragon loves gold, and Oracle Database helps them count every penny without breaking a sweat or a spreadsheet.

Healthcare Data Doc

• In the land of scrubs and stethoscopes, Oracle plays doctor, keeping patient records healthier than a salad-eating yogi.

Retail on Cloud Nine

• Retail giants spin racks and Oracle spins data, making sure your shopping spree is as smooth as a barcode on a checkout joyride.

Telecommunication Titans

• Ever wondered how your selfie travels the globe faster than a gossip in a small town? Oracle's databanks give telecom networks wings!

Oracle Database Alternatives

PostgreSQL

Open-source, object-relational database system providing enterprise-level features like Multi-Version Concurrency Control (MVCC) and point-in-time recovery.

-- Connect to PostgreSQL
psql -d database_name -U user_name

-- Create Table
CREATE TABLE employees (
    ID SERIAL PRIMARY KEY,
    name VARCHAR(100),
    age INTEGER
);

• Extensive indexing capabilities for performance.


• Supports JSON and other NoSQL features.


• Large community and wide adoption.


• Can be complex to tune for performance.


• Slower pace of introducing new features.


• Relatively less enterprise support compared to Oracle.

MySQL

Popular open-source relational database management system known for being lightweight and easy to use, commonly used for web applications.

-- Connect to MySQL
mysql -u username -p

-- Create Table
CREATE TABLE students (
    id INT AUTO_INCREMENT PRIMARY KEY,
    name VARCHAR(255),
    enrolled_date DATE
);

• Widely used, especially in web development.


• Has replication and clustering support.


• Easy for startups and small businesses to implement.


• Lacks some advanced features found in Oracle.


• Performance issues with large databases.


• Default configurations are not always secure or optimal.

Microsoft SQL Server

Enterprise-level, relational database management system with robust data warehousing and analytics features, tight integration with .NET.

-- Connect to SQL Server
sqlcmd -S localhost -U SA -P ''

-- Create Table
CREATE TABLE orders (
    order_id INT PRIMARY KEY,
    order_date DATE NOT NULL,
    order_customer_id INT,
    order_status VARCHAR(10)
);

• Powerful in analytics and business intelligence.


• Seamless integration with other Microsoft products.


• Comprehensive documentation and support.


• Can be cost-prohibitive for smaller businesses.


• Lesser availability of community-driven solutions.


• Complex licensing models.

Quick Facts about Oracle Database

The Birth of a Data Behemoth: Oracle Database

In the tech world, Oracle is like that smart kid from the '70s who decided to don a suit and change the game. It popped into existence in 1977, born from the minds of Larry Ellison and his pals at Software Development Laboratories. They decided to convert academic papers into real-world gold by implementing the first commercial SQL database. Now, fast-forward through time, Oracle has morphed, evolved, and consumed companies and technologies like a tech version of Pac-Man.

The Version Evolution Escapade

Oracle's timeline is a series of escalating dares between itself and the database world. It was like, "Oh, you think you’re cool? Watch this!" Bam! – Oracle 7 drops in 1992 with PL/SQL, and the devs go wild. Fast-forward to 1999, and Oracle 8i comes along, flirting with the internet by stashing 'i' in its name and integrating Java into the database. Suddenly, it was the cool kid at the data prom.

// Dude, JavaScript in a database, wild times!
CREATE OR REPLACE AND COMPILE 
JAVA SOURCE NAMED "Hello" AS 
public class Hello {
  public static String world() { 
    return "Hello, Oracle 8i!"; 
  } 
};

The Groundbreaking 12c And Beyond

In 2013, Oracle bet the farm on ‘c’ for cloud with the release of 12c. They were like, "Hold my beer, and watch me put a database in the cloud and make it chill with other databases." It was an inception-level move, introducing multitenancy where one container could hold a bazillion pluggable databases. Fast-forward to the Oracle 21c, and it's flexing features like Blockchain tables. Yep, it’s like data Lego that cryptographically sticks together!

-- Let's chain up some data with blockchain tables, shall we?
CREATE BLOCKCHAIN TABLE gl_ledger (
   id NUMBER,
   transaction_details VARCHAR2(50),
   transaction_date TIMESTAMP,
   CONSTRAINT gl_ledger_pk PRIMARY KEY (id)
) NO DROP UNTIL 30 DAYS IDLE;

What is the difference between Junior, Middle, Senior and Expert Oracle Database developer?

Top 10 Oracle Database Related Tech

1. 
   

   SQL and PL/SQL

   
   

   
   Imagine SQL as the chatty Cathy of the database world; it won't shut up with its queries. PL/SQL, on the other hand, is the beefy cousin that does all the heavy lifting with stored procedures and functions. Oracle and these twins go together like peanut butter and jelly.
   

   
   

   
   SELECT * FROM sandwich WHERE ingredients LIKE '%peanut butter%' AND ingredients LIKE '%jelly%';
   

   
   


2. 
   

   Oracle Application Express (APEX)

   
   

   
   APEX: the unsung hero allowing folks to whip up web apps like a top chef dishes out meals. It's like LEGOs for adults, snapping data into web pages without the mess of manual coding.
   

   
   

   
   BEGIN
       APEX_APPLICATION.G_FLOW_ID := 12345; -- Your flow ID here, folks!
   END;
   

   
   


3. 
   

   Oracle Recovery Manager (RMAN)

   
   

   
   The unsung hero that backs you up literally. It's the virtual insurance agent, ensuring your data survives the digital equivalent of the apocalypse. Never embark on your Oracle adventure without it.
   

   
   

   
   RMAN> BACKUP DATABASE PLUS ARCHIVELOG;
   

   
   


4. 
   

   Java

   
   

   
   A classic brew with a rich aroma that keeps database interactions smooth and jitters-free. It's like a dependable friend who's always there to connect you with your Oracle data, beans—which means databases in this analogy—not required.
   

   
   

   
   Connection conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:xe", "username", "password");
   

   
   


5. 
   

   Oracle Data Guard

   
   

   
   Your data's own personal bodyguard, keeping it safe and sound during disasters. Data Guard is like an action movie hero, ensuring the continuity of your data's saga with barely a scratch.
   

   
   

   
   DGMGRL> CREATE CONFIGURATION 'QuakeProofDB' AS PRIMARY DATABASE IS 'earthquake' CONNECT IDENTIFIER IS earthquake;
   

   
   


6. 
   

   Oracle Real Application Clusters (RAC)

   
   

   
   Think of RAC as a team of horses pulling your data chariot. One horse gets tired (read: a server goes down)? No problem! The others keep galloping along, keeping your applications trotting without missing a beat.
   

   
   

   
   srvctl add database -d racdb -o /oracle/app/oracle/product/12.1.0/dbhome_1
   

   
   


7. 
   

   Oracle SQL Developer

   
   

   
   The Swiss Army Knife for Oracle aficionados, SQL Developer is the multi-tool that lets you tinker with your data sets, run reports, or just plain marvel at your beautiful schema. Who needs a fancy GUI when you have this powerhouse?
   

   
   

   
   SELECT table_name FROM user_tables;
   

   
   


8. 
   

   Oracle Enterprise Manager (OEM)

   
   

   
   OEM acts like the boss's boss, overseeing everything from performance tuning to configuration management. It's the watchtower keeping an eye on the digital peasants toiling away in your data fields.
   

   
   

   
   emctl start dbconsole
   

   
   


9. 
   

   Oracle Advanced Queuing (AQ)

   
   

   
   Ever played telephone as a kid? Well, AQ is like that, minus the garbled messages. It ensures your data whispers reach their intended ears, orderly and intact.
   

   
   

   
   DECLARE
     enq_options    DBMS_AQ.ENQUEUE_OPTIONS_T;
     msg_properties DBMS_AQ.MESSAGE_PROPERTIES_T;
     message        VARCHAR2(80) := 'Hello, process this, please.';
     msgid          RAW(16);
   BEGIN
     DBMS_AQ.ENQUEUE(queue_name => 'my_message_queue', enqueue_options => enq_options, message_properties => msg_properties, payload => message, msgid => msgid);
   END;
   

   
   


10. 
    

    Shell Scripting

    
    

    
    The duct tape of the IT world, shell scripting fixes everything—scheduling jobs, automating backups, and conjuring scripts that do your bidding with just a few keystrokes. It's the wizard's wand for the sysadmin sorcery.
    

    
    

    
    export ORACLE_HOME=/u01/app/oracle/product/12.1.0/dbhome_1
    $ORACLE_HOME/bin/sqlplus /nolog @backup_database.sql