Vismo Technologies

How to connect to database using sqldeveloper?



YouTube link for the demonstration
https://youtu.be/AxM3oh958jk


Blog URL:
mallik034.blogspot.com/2026/01/how-to-connect-to-d…


Steps:
+++++++
a. Make sure your are able to access the oracle server from your laptop / Desktop via any terminal software (Like putty or MobaXterm etc...)

b. Make sure that Oracle Database and Listeners are up and running on the Oracle server
- Validate that database has registered with listener

c. Make sure you have installed sqldeveloper software on your laptop / Desktop

Note:
Download the latest Oracle SQL developer from the below Oracle URL
www.oracle.com/in/database/sqldeveloper/technologi…

- Try connection with connection details like hostname/IP address, Port and Service Name
- Try connection with TNS entries from sqldeveloper software
- Try connection with TNS entries from client software


Note:
Download Oracle 19 client from the below Oracle URL
www.oracle.com/in/database/technologies/oracle19c-…

DBA Course Curriculum link:
mallik034.blogspot.com/p/database-training.html


RAC Course Curriculum link:
mallik034.blogspot.com/p/rac-training.html


Upcoming Batch Schedule link:

mallik034.blogspot.com/p/upcoming-batch-schedule.h…


#sqldeveloper #sqlplus #database #oraclecarrers #oracleworld #oracle #database #training #onlinetraining #liveclasses


Regards,
Mallikarjun / Vismo Technologies
WhatsApp: +91 9880616848 / +91 9036478079
Cell: +91 9880616848 / +91 9036478079
Email: mallikarjun.ramadurg@gmail.com / vismotechnologies@gmail.com / info@vismotechnologies.com

3 days ago | [YT] | 0

Vismo Technologies

What is SQLcl? And Why Aren’t You Using SQLcl?
https://youtu.be/Z8YvLqmWetw


What is SQLcl? And Why Aren’t You Using SQLcl?
mallik034.blogspot.com/2026/01/what-is-sqlcl-and-w…


1. Downloading and Installing SQLcl:
2. To install SQLcl:
3. Advantages of SQLcl:

DBA Course Curriculum link:
mallik034.blogspot.com/p/database-training.html



RAC Course Curriculum link:
mallik034.blogspot.com/p/rac-training.html



Upcoming Batch Schedule link:
mallik034.blogspot.com/p/upcoming-batch-schedule.h…



#cqlcl #sqlplus #database #oraclecarrers #oracleworld #oracle #database #training #onlinetraining #liveclasses



Regards,
Mallikarjun / Vismo Technologies
WhatsApp: +91 9880616848 / +91 9036478079
Cell: +91 9880616848 / +91 9036478079
Email: mallikarjun.ramadurg@gmail.com / vismotechnologies@gmail.com / info@vismotechnologies.com

4 days ago | [YT] | 1

Vismo Technologies

🌟 Feeling Humbled & Grateful 🌟

I’m truly honored to receive the “Calmer of Storms” award from Naveen and Giri.
This recognition means a lot to me — not just as an award, but as a reminder of the trust, support, and collaboration I’m fortunate to experience every day.

🙏 A special thank you to my manager, Pavan, for the consistent guidance, coaching, and belief in my abilities. Your support has played a major role in helping me grow and stay grounded during challenging situations.

✨ Gratitude to my team — for standing together, sharing knowledge, and tackling every challenge as one unit. Any success I achieve is always a collective effort.

💡 This award reinforces my commitment to:

Staying calm, focused, and solution-oriented during high-pressure moments

Supporting my team in navigating complex issues

Continuously learning and improving

Creating a positive impact, no matter how big or small the situation

Feeling both happy and humbled, and more motivated than ever to keep contributing with patience, clarity, and a problem-solving mindset.

Thank you once again to everyone who has been part of this journey. Onwards and upwards! 🚀

#Rubrik #awards #Gratitude #TeamWork #CalmerOfStorms #Recognition #Thankful #Leadership #GrowthMindset #ProfessionalJourney #Motivation #LearningEveryday #Blessed

2 months ago | [YT] | 7

Vismo Technologies

Day_2_Demo_Session | RAC Architecture | RAC Installation | RAC Networking
https://youtu.be/mzJeJ6QwJ8Q?si=kRGF2...



Demo Session - 16.RAC-Batch-06-Nov-2025:
Demo Date & Time:
06-Nov-2025 & 07-Nov-2025 (Thu & Fri) in IST
8:30 AM IST to 10:30 AM IST (2 hour Everyday)

05-Nov-2025 & 06-Nov-2025 (Wed & Thu) in EST
11:00 PM EST to 01:00 AM EST (2 hour Everyday)



Demo Zoom link:
Demo Session - 16.RAC-Batch-06-Nov-2025
us02web.zoom.us/j/84773813810?pwd=eN4qjFdg7ZwBaHBv…
Meeting ID: 847 7381 3810
Security Passcode: 121212



Actual Course is Starting on:
Actual Course is Starting on:
20-Nov-2025 (Thu) in IST Time: 08:30 AM IST to 11:30 AM IST
19-Nov-2025 (Wed) in EST Time: 11:00 PM EST to 02:00 AM EST



Weekday Batch: Thursday & Friday in IST (Wednesday & Thursday in EST)

Time: 08:30 AM IST to 11:30 AM IST (11:00 PM EST to 02:00 AM EST) (3 hour)
Duration: 7 Weeks
RAC Course fees: 15K INR (185 USD)
Mode: Online Live Classes over a zoom
Oracle Version: 19c Version



Minimum Requirement:
Basics of Windows & Linux
Basics Linux & Basics SQLs
Basics Database Knowledge
Hardware: 20GB RAM & 150GB SSD Hard disk
(Lab setup will be done using using Virtual Box)



RAC Course Curriculum link:
mallik034.blogspot.com/p/rac-training.html



Upcoming Batch Schedule link:
mallik034.blogspot.com/p/upcoming-batch-schedule.h…



#vismotechnologies #mallik034 #oracle #database #training #onlinetraining #liveclasses #rac #oracledba #oraclecarrers #oracleworld



Regards,
Mallikarjun / Vismo Technologies
WhatsApp: +91 9880616848 / +91 9036478079
Cell: +91 9880616848 / +91 9036478079
Email: mallikarjun.ramadurg@gmail.com / vismotechnologies@gmail.com

2 months ago | [YT] | 0

Vismo Technologies

Day_1_Demo_Session | RAC Course | Oracle Certifications | DBA Road Map
https://youtu.be/KbxrsQ3ABNQ?si=p3cxK...



Demo Session - 16.RAC-Batch-06-Nov-2025:
Demo Date & Time:
06-Nov-2025 & 07-Nov-2025 (Thu & Fri) in IST
8:30 AM IST to 10:30 AM IST (2 hour Everyday)

05-Nov-2025 & 06-Nov-2025 (Wed & Thu) in EST
11:00 PM EST to 01:00 AM EST (2 hour Everyday)



Demo Zoom link:
Demo Session - 16.RAC-Batch-06-Nov-2025
us02web.zoom.us/j/84773813810?pwd=eN4qjFdg7ZwBaHBv…
Meeting ID: 847 7381 3810
Security Passcode: 121212



Actual Course is Starting on:
Actual Course is Starting on:
20-Nov-2025 (Thu) in IST Time: 08:30 AM IST to 11:30 AM IST
19-Nov-2025 (Wed) in EST Time: 11:00 PM EST to 02:00 AM EST



Weekday Batch: Thursday & Friday in IST (Wednesday & Thursday in EST)
Time: 08:30 AM IST to 11:30 AM IST (11:00 PM EST to 02:00 AM EST) (3 hour)
Duration: 7 Weeks
RAC Course fees: 15K INR (185 USD)
Mode: Online Live Classes over a zoom
Oracle Version: 19c Version



Minimum Requirement:
Basics of Windows & Linux
Basics Linux & Basics SQLs
Basics Database Knowledge
Hardware: 20GB RAM & 150GB SSD Hard disk
(Lab setup will be done using using Virtual Box)



RAC Course Curriculum link:
mallik034.blogspot.com/p/rac-training.html



Upcoming Batch Schedule link:
mallik034.blogspot.com/p/upcoming-batch-schedule.h…



#vismotechnologies #mallik034 #oracle #database #training #onlinetraining #liveclasses #rac #oracledba #oraclecarrers #oracleworld



Regards,
Mallikarjun / Vismo Technologies
WhatsApp: +91 9880616848 / +91 9036478079
Cell: +91 9880616848 / +91 9036478079
Email: mallikarjun.ramadurg@gmail.com / vismotechnologies@gmail.com

2 months ago | [YT] | 0

Vismo Technologies

📢 Oracle RAC – New Batch Starts on 23-Nov-2025

RAC Course Curriculum:
➡️ mallik034.blogspot.com/p/rac-training.html

Course Start Date:
📅 23-Nov-2025 (Sunday) — IST: 08:30 AM to 11:30 AM
📅 22-Nov-2025 (Saturday) — EST: 11:00 PM to 02:00 AM

Weekday Batch:
🗓️ Thursday & Friday (IST) | Wednesday & Thursday (EST)
⏱ Duration: 3 Hours / Day | Total Duration: 7 Weeks

Course Fees:
₹15,000 INR / $185 USD

Mode: Online Live Classes (Zoom)
Oracle Version: 19c

Minimum Requirements:
• Basics of Windows & Linux
• Basics of SQL & Database Concepts
• Hardware: 20GB RAM, 150GB SSD
• Lab Setup: VirtualBox

Missed the RAC Demo Sessions? Watch them here:

▶️ Day 1 Demo Session — RAC Course | Oracle Certifications | DBA Road Map
https://www.youtube.com/watch?v=Kbxrs...

▶️ Day 2 Demo Session — RAC Architecture | RAC Installation | RAC Networking
https://www.youtube.com/watch?v=mzJeJ...

🗓️ Upcoming Batch Schedule:
📅 Check Here — mallik034.blogspot.com/p/upcoming-batch-schedule.h…

For Details & Registration:
📱 WhatsApp: +91 98806 16848
✉️ Email: malluramadurg@gmail.com

🌐 LinkedIn | YouTube | Facebook | Blog | Twitter | Instagram | FB Page

#vismotechnologies #oracle #training #RAC #oracledba #oraclecareers

2 months ago | [YT] | 2

Vismo Technologies

📢 [Reminder] Oracle RAC Demo Session Scheduled Tomorrow - 06-Nov-2025 - New Batch Starts on 23-Nov-2025

🗓️ Demo Date & Time:
📅 06-Nov-2025 & 07-Nov-2025 (Thu & Fri) — IST
🕗 8:30 AM to 10:30 AM IST (2 hours daily)
📅 05-Nov-2025 & 06-Nov-2025 (Wed & Thu) — EST
🕚 11:00 PM to 01:00 AM EST (2 hours daily)

🔗 Demo Zoom Link:
👉 Join Here - us02web.zoom.us/j/84773813810?pwd=eN4qjFdg7ZwBaHBv…
🆔 Meeting ID: 847 7381 3810
🔒 Passcode: 121212

📘 RAC Course Curriculum:
➡️ View Curriculum - mallik034.blogspot.com/p/rac-training.html

🎯 Actual Course Start Date:
📅 20-Nov-2025 (Thu) — IST: 08:30 AM to 11:30 AM
📅 19-Nov-2025 (Wed) — EST: 11:00 PM to 02:00 AM

🧩 Weekday Batch:
🗓️ Thursday & Friday (IST) | Wednesday & Thursday (EST)
🕒 Duration: 3 Hours / Day | Total Duration: 7 Weeks
💰 Course Fees: ₹15,000 INR / $185 USD
💻 Mode: Online Live Classes (Zoom)
🧠 Oracle Version: 19c

⚙️ Minimum Requirements:
💻 Basics of Windows & Linux
🧩 Basics of SQL & Database Concepts
🧮 Hardware: 20GB RAM, 150GB SSD
📦 Lab Setup: Using VirtualBox

🗓️ Upcoming Batch Schedule:
📅 Check Here - mallik034.blogspot.com/p/upcoming-batch-schedule.h…

🔖 Stay Connected:
📱 Mobile / WhatsApp: +91 98806 16848
📧 Email: malluramadurg@gmail.com
🌐 LinkedIn | YouTube | Facebook | Blog | Twitter | Instagram | FB Page

#️⃣ #vismotechnologies #mallik034 #oracle #database #training #onlinetraining #liveclasses #RAC #oracledba #oraclecareers #oracleworld

2 months ago | [YT] | 1

Vismo Technologies

🚀 Exciting Announcement!
We’re thrilled to announce that a New Oracle RAC Batch is starting on 📅 Thursday, 23-Nov-2025!

Demo Sessions are scheduled on Thursday, 06-Nov-2025!

💬 Registrations are Open Now!
👉 Connect directly with me on WhatsApp: +91 9880616848 to reserve your seat.

🎥 Missed Our Live Demo Sessions?
No worries — you can catch up anytime using the links below 👇

🎯 All Previous RAC Batch Demo Sessions are available on our YouTube Channel:
🔗 Vismo Technologies YouTube Channel - youtube.com/playlist?list=PLh...

📄 Course Details & Curriculum
📗 Oracle RAC Course – View Details - docs.google.com/document/d/1yvl0poxtbv_B_N3KxVAM50…

💡 Why Choose Vismo Technologies?
✅ 100% Practical, Real-Time RAC Training
✅ Hands-on Lab Sessions & Interview Preparation
✅ Expert Trainer with 15+ Years of Industry Experience
✅ Placement Guidance & Lifetime Learning Access

📞 For Registration or Queries:
Message me directly on WhatsApp: +91 9880616848

Best Regards,
Mallikarjun Ramadurg
Vismo Technologies
📱 WhatsApp: +91 9880616848
🔗 YouTube Channel - youtube.com/@vismotechnologies

2 months ago | [YT] | 3

Vismo Technologies

🎉 Exciting Announcement from Vismo Technologies!
We’re thrilled to share that a new Oracle DBA Batch is starting on 📅 Monday, 03-Nov-2025! 🚀

👉 For registration, feel free to reach out to me directly on WhatsApp: +91 9880616848

🎥 Missed the Live Demo Sessions?
No worries — you can watch them anytime here:

📘 Day 1 Demo: Course Curriculum & Standalone vs RAC
🔗 Watch Here - https://youtu.be/CmgFj8xswpM?si=InbW-...

📗 Day 2 Demo: Oracle Database Architecture & Database Startup Sequence
🔗 Watch Here - https://youtu.be/Rdfxx2bpDl0?si=hH9k3...

📺 All Demo Sessions available on our YouTube Channel:
🔗 Vismo Technologies YouTube Channel - youtube.com/@vismotechnologies

📄 Course Details:
🧾 DBA Course Details - docs.google.com/document/d/1MrkRITiyvvoOioIrGyFu37…

💬 For any queries or registration assistance, connect with me directly:
📱 +91 9880616848

Best Regards,
Mallikarjun Ramadurg
Vismo Technologies
🔗 YouTube Channel - youtube.com/@vismotechnologies

#OracleDBA #DatabaseAdministration #OracleTraining #DBATraining #CareerGrowth #VismoTechnologies #Oracle #Learning

2 months ago | [YT] | 3

Vismo Technologies

Dear All,
🙏 We’re thrilled to announce that a ​

New Oracle DBA Batch is starting on 📅 Monday, 03-Nov-2025!
​New Oracle ​R​AC Batch is starting on 📅 ​Thursday, ​23-Nov-2025!​ (Demo sessions are scheduled on 06-Nov-2025, Thursday)​​

​

​💬 Registration Open Now!
​​​👉 Connect directly with me on WhatsApp: +91 9880616848 to reserve your seat.​

​
🎥 Missed Our Live Demo Sessions?
No worries — you can watch them anytime using the links below 👇​



📘 Day 1 Demo Session
Course Curriculum & Standalone vs RAC
🔗 Watch Here​ - https://youtu.be/CmgFj8xswpM?si=InbW-...



📗 Day 2 Demo Session
Oracle Database Architecture & Startup Sequence
🔗 Watch Here​ - https://youtu.be/Rdfxx2bpDl0?si=hH9k3...



​🎯 All ​previous DBA batch Demo Sessions Available On​ Youtube channel:
🔗 Vismo Technologies YouTube Channel​ - youtube.com/playlist?list=PLh...




🚀 Coming Up Next: RAC Batch Launch!
📅 Demo Sessions Scheduled on Thursday, 06-Nov-2025


Don’t miss this opportunity to master Oracle RAC from scratch!

​🎯 All ​previous RAC batch Demo Sessions Available On​ Youtube channel:
🔗 Vismo Technologies YouTube Channel​ - youtube.com/playlist?list=PLh...





📄 Course Details & Curriculum
📘 Oracle DBA Course: View Details​ - docs.google.com/document/d/1MrkRITiyvvoOioIrGyFu37…
📗 Oracle RAC Course: View Details​ - docs.google.com/document/d/1yvl0poxtbv_B_N3KxVAM50…





💡 Why Choose Vismo Technologies?
✅ 100% Practical, Real-Time Training
✅ Live Lab Sessions & Interview Prep
✅ Expert Trainer with 15+ Years Experience
✅ Placement Guidance & Lifetime Learning Access





📞 For Registration or Queries:
Message me directly on WhatsApp: +91 9880616848





Best Regards,
Mallikarjun Ramadurg
Vismo Technologies
📱 WhatsApp: +91 9880616848
🔗 YouTube Channel



Email: malluramadurg@gmail.com
LinkedIn: www.linkedin.com/in/mallik034
YouTube: youtube.com/c/mallik034
Facebook: www.facebook.com/mallik034
Blog: mallik034.blogspot.com/
twitter: twitter.com/mallik034
Instagram: www.instagram.com/mallik034
FB Page: www.facebook.com/mallik034oracledba

2 months ago | [YT] | 3