What is the difference between Normalization and De-normalization?

569

---

What does COMMIT command do?

632

---

Write a program to fetch first 10 records from a file?

609

---

How to update a field in SQL after ALTERING a row?

693

---

Write a sql query to get zero records from a table having n number of records?

713

---

Write a query to include a constraint, to check whether the employee salary is greater than 5000?

1132

---

How to use copy and concatenate commands in SQL?

603

---

How many columns can exist together per table?

715

---

What is the use of RDBMS?

594

---

Write a SQL query to make a column as unique?

634

---

Explain few examples of RDBMS?

619

---

How many tables can be joined in SQL Server?

594

---

What is the name of the Database which IBM mainframe uses?

544

---

Explain the database you used in your final year project?

542

---

Write a SQL query to delete a table?

662

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