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DBMS

Denormalization is a strategy that database managers use to increase the performance of a database infrastructure. It involves adding redundant data to a normalized database to red ...

• Ankush
• 467 Views
• 1 Answers

Write a trigger to update Emp table such that, If an updation is done in Dep table then salary of all employees of that department should be incremented by some amount (updation)

Write a trigger to update Emp table such that, If an updation is done in Dep table then salary of all employees of that department should be incremented by some amount (updation)

• Rahul
• 1220 Views
• 1 Answers

Consider the following Employee table. How many rows are there in the result of following query?

ID salary DeptName 1 10000 EC 2 40000 EC 3 30000 CS 4 40000 ME 5 50000 ME 6 60000 ME 7 70000 CS

• Rahul
• 1074 Views
• 3 Answers

Which is the best software for DBMS?

Which is the best software for DBMS?

• Tanu
• 271 Views
• 7 Answers

What is DDL (Data Definition Language)?

What is an attribute? What is RDBMS? What is difference between DBMS and RDBMS?

• Shubhangi
• 5794 Views
• 11 Answers

I know Metadata is data about data but what kind of data about data?

I know Metadata is data about data but what kind of data access for those data .This data means datatype or others data.

• Debabrata
• 683 Views
• 12 Answers