Index

--------------------All Important Information--------------------------

SQL

https://www.w3schools.com/sql/

https://www.tutorialspoint.com/sql/

https://www.geeksforgeeks.org/sql-tutorial/

SQL Interview Question
https://www.guru99.com/sql-interview-questions-answers.html
https://www.geeksforgeeks.org/sql-interview-questions/
https://www.softwaretestinghelp.com/50-popular-sql-interview-questions-for-testers/
https://www.javatpoint.com/sql-interview-questions 

PLSQL
https://www.tutorialspoint.com/plsql/
https://www.guru99.com/pl-sql-tutorials.html
http://www.plsqltutorial.com/

PLSQL Interview Question
https://www.guru99.com/pl-sql-interview-questions-answers.html
https://www.javatpoint.com/pl-sql-interview-questions
https://www.softwaretestinghelp.com/plsql-interview-questions/
https://mindmajix.com/oracle-pl-sql-interview-questions

Unix And Shell Scripting
https://praveenunixoracle.blogspot.com/2019/04/unix-interview-questions.html
https://www.softwaretestinghelp.com/unix-shell-scripting-tutorial/
http://www.ee.surrey.ac.uk/Teaching/Unix/
https://fresh2refresh.com/unix-tutorial/
https://www.guru99.com/unix-linux-tutorial.html 
https://www.tutorialspoint.com/unix/shell_scripting.htm

Oracle
https://www.oracle.com/downloads/

Python
https://www.w3schools.com/python/
https://docs.python.org/3/tutorial/

https://www.guru99.com/python-tutorials.html

Python interview Question
 https://www.edureka.co/blog/interview-questions/python-interview-questions/
https://intellipaat.com/interview-question/python-interview-questions/
https://www.techbeamers.com/python-interview-questions-programmers/
https://www.greycampus.com/blog/programming/top-python-interview-questions-with-answers-for-freshers

AWS
https://www.youtube.com/watch?v=r4YIdn2eTm4&list=PLEiEAq2VkUULlNtIFhEQHo8gacvme35rz

AWS Interview Question
https://www.dezyre.com/article/-top-50-aws-interview-questions-and-answers-for-2018/399
https://www.besanttechnologies.com/aws-interview-questions-and-answers
https://www.gangboard.com/blog/aws-interview-questions-and-answers/

Devops

Devops Interview question

Java

Java interview question

C

C++

C#

HTML

XML

SQL Server 

My SQL 

PHP

Telecom Billing 

https://praveenunixoracle.blogspot.com/2019/04/what-is-ossbss.html

https://praveenunixoracle.blogspot.com/2019/04/what-is-msc-in-telecom.html

BSC in telecom

https://praveenunixoracle.blogspot.com/2019/04/bsc-in-telecom.html

BTS in Telecom

https://praveenunixoracle.blogspot.com/2019/04/bts-in-telecom.html

Prepaid Billing

https://praveenunixoracle.blogspot.com/2019/04/prepaid-billing.html