What is the importance of selection bias?

82

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What is the purpose of a/b testing?

89

---

What is machine learning and how can it be used for time series analysis?

86

---

What are a database and a data warehouse?

566

---

What do you understand by the denormalisation?

549

---

What is an index in sql?

548

---

Name few of the dcl commands in sql?

550

---

What is join and name different type of joins?

578

---

Is there any difference between the primary key and unique key?

567

---

Name the different type of indexes in sql?

531

---

Can you name some of the dml commands in sql?

548

---

What is a view and what are its advantages?

687

---

What according to you is the difference between mysql and sql server performance?

556

---

What is the query and subquery?

616

---

What is the template in sql?

537

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