What is the usage of the distinct keyword?

1271

---

What are the disadvantages of not performing database normalization?

1213

---

What are the usages of sql?

1097

---

Which are the different character-manipulation functions in sql?

1107

---

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

1242

---

When sql appeared?

1146

---

What is normalization in a database?

1195

---

What are the syntax and use of the coalesce function?

1270

---

What is the usage of sql functions?

1197

---

What is the requirement of self-join?

1205

---

What is the difference between clustered and non-clustered index in sql?

1062

---

What is the unique index?

1105

---

What are the subsets of sql?

1192

---

What is an inconsistent dependency?

1082

---

What is a data manipulation language?

1069

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