What do you understand by data model?

1107

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What is the non-clustered index in sql?

1067

---

Does sql support programming?

1076

---

What are the different types of database management systems?

1006

---

What is self-join and what is the requirement of self-join?

1153

---

What is the difference between delete and truncate statement in sql?

1077

---

What is denormalization in a database?

1060

---

What is right join in sql?

1098

---

What is data control language?

994

---

What is the usage of the distinct keyword?

1221

---

What are the disadvantages of not performing database normalization?

1169

---

What are the usages of sql?

1059

---

Which are the different character-manipulation functions in sql?

1072

---

What is a constraint? Tell me about its various levels.

1165

---

When sql appeared?

1105

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