What is Data Modelling?

0 Answers   Informatica,

---

what is the difference between tuple calculus and domain calculus ?

2 Answers   Infosys,

---

What is the Difference Primary key and Unique Key

0 Answers   HCL,

---

give a simple example of physical and logical data independence

0 Answers  

---

During insert operation in Netezza Connector, if we give direct option as Yes , is there any issue?

0 Answers  

---

---

What is the difference between primary key, foreign key and candidate key?

0 Answers   Ernst Young,

---

What will happen non-clustered index will be created on clustered index?

0 Answers   Abacus,

---

Two tables emp(empid,name,deptid,sal) and dept(deptid,deptname) are there.write a query which displays empname,corresponding deptname also display those employee names who donot belong to any dept.

0 Answers   Amazon,

---

Which database is best to store images?

0 Answers  

---

What is the use of graph database?

0 Answers  

---

What does currency type mean in database?

0 Answers   Amazon,

---

Differentiate between unique key and foreign key?

0 Answers   CGI,

---