What are the types of indexes that are present inside a database?

1127

---

What is difference between clustered, non-clustered and unique index?

1086

---

What is the use of default key?

1155

---

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

1046

---

How many types of normalization? What is the use of it?

1136

---

What are different types of data models available? Explain with example?

1098

---

What does new grouping sets enables you to do?

1038

---

What is the advantage of varchar2 over char?

1270

---

Why merge statement is used inside the database?

1096

---

How heap is implemented in database?

1170

---

What are different types of joins used in?

1109

---

What are the concurrency problems a database faces?

1039

---

What does currency type mean in database?

1195

---

After normalization, what are the conditions which have to keep in mind to de-normalize it?

1050

---

Explain normalization in one line?

1095

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