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Answered 4 days ago Learn Oracle Training

What is the best IDE for Oracle PL/SQL development? Why?

Ranjith N

"Transforming your struggles into success"

The best IDE for Oracle PL/SQL development is Oracle SQL Developer because it’s free, feature-rich, and provides seamless integration with Oracle databases, including tools for coding, debugging, and managing database objects.
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Answered 4 days ago Learn Oracle Training

How do blockchain oracles work?

Ranjith N

"Transforming your struggles into success"

Blockchain oracles act as bridges between blockchains and external data sources, providing smart contracts with real-world information (e.g., price feeds, weather data) that is not inherently available on the blockchain. They fetch, verify, and deliver external data to smart contracts to trigger actions... read more
Blockchain oracles act as bridges between blockchains and external data sources, providing smart contracts with real-world information (e.g., price feeds, weather data) that is not inherently available on the blockchain. They fetch, verify, and deliver external data to smart contracts to trigger actions based on real-world events. read less
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Answered 4 days ago Learn Oracle Training

How can you check if a table is locked in Oracle?

Ranjith N

"Transforming your struggles into success"

You can check if a table is locked in Oracle by querying the `DBA_BLOCKERS` and `DBA_WAITERS` views, or by using the following SQL: ```sql SELECT * FROM v$locked_object; ``` This will show any locked objects, including tables, and the session holding the lock.
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Answered 3 days ago Learn Oracle Training

What are the best books for Oracle beginners?

Rajesh Kumar N

"Rajesh Kumar N: Guiding Young Minds from 1 to 12 with Expertise and Care"

Best Books for Oracle Beginners: 1. Oracle PL/SQL Programming -- Steven Feuerstein 2. Oracle Database 12c The Complete Reference -- Kevin Loney 3. Oracle DBA Handbook -- Kevin Loney 4. Oracle SQL by Example -- Alice Rischert
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Answered 3 days ago Learn Oracle Training

What is the main difference between Oracle 8i, 9i, 10g, 11g, 12c?

Rajesh Kumar N

"Rajesh Kumar N: Guiding Young Minds from 1 to 12 with Expertise and Care"

8i: Introduced Internet computing support. 9i: Added Real Application Clusters (RAC). 10g: Focused on Grid computing. 11g: Improved performance, security, and automation. 12c: Introduced Multitenant architecture (Cloud).
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Answered 3 days ago Learn Oracle Training

What are the programming skills required for an Oracle DBA?

Rajesh Kumar N

"Rajesh Kumar N: Guiding Young Minds from 1 to 12 with Expertise and Care"

Key Skills: SQL & PL/SQL (queries, procedures, triggers) Shell Scripting (automation) Python/PERL (monitoring, scripting) Java/JDBC (basic integration)
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Answered 3 days ago Learn Oracle Training

What is the difference between Oracle and SQL servers and MySQL?

Rajesh Kumar N

"Rajesh Kumar N: Guiding Young Minds from 1 to 12 with Expertise and Care"

Oracle: Enterprise-grade, high performance, supports PL/SQL, best for large-scale applications. SQL Server: Microsoft product, uses T-SQL, optimized for Windows environments. MySQL: Open-source, lightweight, best for web apps, supports SQL but no PL/SQL or T-SQL.
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Answered 3 days ago Learn Oracle Training

What's the best way to migrate Oracle DB schema from Oracle DBMS to another Oracle DBMS?

Rajesh Kumar N

"Rajesh Kumar N: Guiding Young Minds from 1 to 12 with Expertise and Care"

Best Methods: 1. Data Pump (EXPDP/IMPDP) -- Fast, recommended for large schemas. 2. RMAN Duplicate -- For full database cloning. 3. GoldenGate -- For real-time replication. 4. SQL Scripts (DDL + INSERTs) -- For small schemas.
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Answered 3 days ago Learn Oracle Training

How is the technology of the Oracle Fusion Middleware?

Rajesh Kumar N

"Rajesh Kumar N: Guiding Young Minds from 1 to 12 with Expertise and Care"

Oracle Fusion Middleware is a Java EE-based middleware suite supporting integration, security, SOA, BI, and cloud applications. Key components: WebLogic Server, SOA Suite, OBIEE, Identity Management.
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Answered 3 days ago Learn Oracle Training

How to prepare for OCAJP exam?

Rajesh Kumar N

"Rajesh Kumar N: Guiding Young Minds from 1 to 12 with Expertise and Care"

Steps to Prepare for OCAJP: 1. Study Guide: Read Oracle Certified Associate Java SE Study Guide (Jeanne Boyarsky, Scott Selikoff). 2. Practice Coding: Focus on Java basics, OOPs, exception handling, and APIs. 3. Mock Tests: Use Enthuware, Whizlabs, or Oracle practice exams. 4. Hands-on... read more
Steps to Prepare for OCAJP: 1. Study Guide: Read Oracle Certified Associate Java SE Study Guide (Jeanne Boyarsky, Scott Selikoff). 2. Practice Coding: Focus on Java basics, OOPs, exception handling, and APIs. 3. Mock Tests: Use Enthuware, Whizlabs, or Oracle practice exams. 4. Hands-on Experience: Write and debug Java programs. 5. Exam Objectives: Follow Oracle’s official syllabus. read less
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