Master SQL interviews (Top Interview questions & answers)

Learn Most Common SQL interview questions and answers with detailed explanations & hands on examples

What you'll learn
Will be able to revise all important SQL concepts like RDBMS, Joins, Indexes, various constraints etc.
Will learn top SQL interview questions and their answers.
Will learn SQL programming questions and answers like top nth salary from table and ranks
Multiple approaches to tackle the same interview question

Requirements
Basic SQL knowledge will be beneficial

Description
This course has been intended for programmers and testers who want to master SQL interview questions and answers.

Most of the modern applications create data in a backend database and hence knowing SQL is an essential skill for everyone. The course covers a number of questions and answers in the following areas

1) Databases

2) Various types of Database Management system

3) Different types of SQL statements - DDL, DML and DCL statements

4) SQL introduction

5) Creating tables

6) SQL Data types

7) SELECT INTO operations

8) Conditional SELECT operations

9) DELETE ALL and Conditional DELETE operations

10) DELETE and TRUNCATE operation comparison

11) DROP table operations

12) Data Integrity and constraints

13) Column level and Table level primary Keys

14) Creating Unique keys

15) Various types of check constraints

16) Nullable columns

17) Aggregate functions

18) SQL statements to address different goals

19) Displaying schema of tables

20) What are JOINS?

21) Different types of JOINS - Inner Join, Left Outer, Right Outer and Full Outer Joins

22) What is SELF and Cross Joins?

23) Displaying System Date and time

24) Displaying server and database names

25) Various string operations - Substring, CHARINDEX, Concatenation etc

26) Creating an empty table from an existing table

27) LEFT, RIGHT operations

28) What are indexes?

29) Describe Clustered indexes

30) Non-clustered indexes and difference from Clustered indexes

31) Describe Unique Indexes

and many more …

Who this course is for
This course has been designed for Data scientists, programmers and testers looking to master SQL interviews