Why Set TNS_ADMIN in Oracle! 

Sir the way you explain was fantastic I am not an professional but just a beginner but still got each and every words said by you Thanks for sharing this session with us

yet again a quality tutorial from Arun. 🙏

Valuable information thnk u Arun

Nice to see you after so long

Really thank you for sharing your experience with us , that's so generous from you . Wish you the best in your work

Big Fan Arun...you are great. Thanks for creating amazing courses..

Thank You so much, Sir! I must say no one can explain better than you. You did a great job. Thanks for sharing your knowledge with us.

Really this is Awesome sos 😍😍.. thanks for the knowledge sharing we will apply next time this in real-time upgrades.

Sir your videos are so impressive😊

Thank you!

Awesome hair style 👍

Good explanation Arun .about Listener and Tns file , this is very helpful .

Thanks Arun!

good session.

awsome am really become a fan arun... thanks a lot

Hii sir, without wasting your valuable time to praise you i directly come to the topic. Sir i want a complete lecture on tkprof utility with lab activities means complete explanation with queries on real time environment. I have lack of words to praise you.

thank you so much Arun..this video really helped me to understand much better. May I request you to please put a video regarding why oracle DBMS stat used and also please put a video difference between oracle 19c and oracle 12 c.and also why we have to upgrade to 19c db from 12c db..if you make this video for above questions,it would really helpful for me..thanks in advance

The problem with this is when in future if old oracle home is uninstalled, the listener and tnsnames files will be gone. It would make more sense to user a 3rd location for this outside oracle homes if we plan to use a common listener and tns file

Hi sir....i hope you are having a great week If possible can you please make a video on streams and queues......

Hairstyle super

Hi Arun- Can you please make a video on migration of Oracle to PostgreSQL ? Well a broader topic but would be helpful to DBA's.

Hi , In RAC can we setup 1 Node with Auto Undo and on other node without Auto Undo? Is it possible and any impact by doing this or it is good option to do or not? Please answer this it is asked to me in one interview

Hi, Can you please explain how we can restore the control files that has been taken by hot-backup. "alter database backup controlfiles to 'path' "

Hello please make video on oracle instance tuning

ORA-12514: TNS:listener does not currently know of service requested in connect descriptor.can u please help me how to solve this.after exporting tns_admin.i tries to import sample schema.but this issue popsout.

Sir i have just started my career in Oracle DBA hoping for good future it has only been a month..Any suggestions for me.??

Sir, how to import unknown dump file .Without log file.? Sir plz explain i faced this question in 2 interviews.

@arun, Hello sir, please suggest me Is HP z400 workstation (Intel Xeon w3565 processor and 16gb ddr3 RAM) good for practicing environment (dataguard, RAC, Golden gate)??? As I am looking for a budget desktop for practicing dataguard and RAC at home.

1) Listener is running fine ,DB is up and running fine, user have all the privileges to connect, but he is not able to connect to the db, he is getting tnsora error 2)Prod to non prod refresh, a copy of prod dump backup need to be send to non prod db to import the data..but here the scenario is file system has no space available

One video make on virtual machine how to connect wifi plz..