Question
When was the Indian Railways and RailTel Corporation of
India Limited incorporated?Solution
RailTel was incorporated on September 26, 2000. It was incorporated with the aim of modernizing the existing telecom system for train control, operation, and safety And to generate additional revenues by creating nationwide broadband and multimedia network, laying optical fiber cable using the right of way along railway tracks.
Which SQL command is used to modify existing records in a table?
A materialized view differs from a normal view because it:
Which of the following is a key characteristic that distinguishes a PL/SQL `FUNCTION` from a PL/SQL `PROCEDURE`?
Which join returns rows from the left table even when there is no matching row in the right table, filling with NULLs for the right side?
Which type of index physically reorders the data rows in the table itself based on the index key, meaning the data is stored in the order of the index?
SQL Injection can be prevented by all EXCEPT:
What is an SQL `VIEW`?
Deadlock in DBMS can be prevented using:
What is the primary purpose of a `SEQUENCE` in SQL?
Which SQL statement combines the results of two queries and removes duplicates?
