SQL Offline Tutorial & Interview Questions

SQL概念和參考只需點擊一下即可幫助你只要你想。

Learn SQL - offline tutorial. Read SQL concepts and Easy to understand

This App enables reading concepts Offline (without the internet). Download our App and read it whenever you feel like. No internet connection is required.

This App lets developers or CS students or Engineering students or anyone who is interested in learning SQL from theory, implementation. If you are a programmer looking for your first programming job and preparing for coding interviews, or a student who is preparing for exams about Database related or SQL cases, this app could be a right fit for you

All the concepts are explained easily.

There is a favorite option to bookmark your favorites. Also, you can track which concept you read and which are unread

Currently, we are covering following topics:

SQL Basics

SQL Functions

SQL Advanced concepts

SQL Basic Questions

SQL Interview Questions

Under SQL Basics section following concepts are covered :

SQL Intro

SQL Syntax

SQL SELECT

SQL DISTINCT

SQL WHERE

SQL AND & OR

SQL ORDER BY

SQL INSERT

SQL UPDATE

SQL DELETE

Under SQL Advanced following concepts are covered:

SQL Top

SQL LIKE

SQL WILDCARDS

SQL IN

SQL BETWEEN

SQL ALIAS

SQL JOIN

SQL INNER JOIN

SQL LEFT JOIN

SQL RIGHT JOIN

SQL UNION

SQL SELECT INTO

SQL CONSTRAINTS

SQL NOT NULL CONSTRAINT

SQL UNIQUE CONSTRAINT

SQL PRIMARY KEY CONSTRAINT

SQL FOREIGN KEY CONSTRAINT

SQL CHECK

SQL DEFAULT

SQL CREATE INDEX

SQL DROP

SQL ALTER

SQL INCREMENT

SQL VIEWS

SQL DATES

SQL NULL

SQL ISNULL

SQL DATA TYPES

Under SQL Functions section following concepts are covered:

SQL avg()

SQL count()

SQL first()

SQL last()

SQL max()

SQL min()

SQL sum()

SQL Group By

SQL Having

SQL ucase()

SQL lcase()

SQL mid()

SQL len()

SQL round()

SQL now()

SQL format()

SQL Quick Reference

SQL Hosting

SQL Basic Interview Questions Section:

At present we have added the 22 interview questions.

1 What is a primary key?

2 What is a foreign key?

3 What is view in SQL?

4 What is an Index in SQL?

5 What is Clustered Index in SQl?

6 What is NonClustered Index in SQL?

7 What is the difference between clustered and non clustered index in SQL?

8 Is it possible to sort a column using a column alias?

9 What is the difference between BETWEEN and IN condition operators?

10 What is the difference between DELETE and TRUNCATE statement in SQL?

11 What is the difference among NULL value, zero and blank space?

12 What is subquery?

13 What are the types of subquery?

14 What is a stored procedure?

15 What is Auto Increment?

16 What is Self-Join?

17 What is user defined functions?

18 What are all types of user defined functions?

19 What is collation?

20 Advantages and Disadvantages of Stored Procedure?

21 What is Union, minus and Interact commands?

22 What are the types of join and explain each?

SQL Interview Questions Section:

At present we have added the 38 interview questions.

For these questions please check in our app

If you want us to add any new topics please Write to Us using the "Feedback/Suggestions" option in our App.

Learn SQL concepts in a very easy way without connecting to the internet is the main objective. We will also add the SQL interview questions in our next update. Please stay tuned for the next update