SQL INSERT INTO – Insert Values Into a Table

This tutorial will learn you SQL INSERT INTO with definition, syntax, query, & example. You will learn to insert data into a table with or without a column name. After reading each point, you will easily execute an insert query to store values in the database. So, read the complete tutorial carefully lest you should leave any point. SQL INSERT INTO Statement Definition – INSERT INTO is a SQL Statement that can be used to insert new data into a table. Learn more – SQL Interview Questions and Answers Join 3 Tables in SQL INSERT INTO Syntax You can insert … Continue reading

SQL ORDER BY – Definition, Syntax, Example

In this tutorial, the SQL ORDER BY statement is explained with definition, syntax, example, ASC & DESC keyword. Using it, you will learn how to sort multiple column data in ascending or descending order. ORDER BY clause is mainly used with the SELECT statement. If you don’t know about the SELECT statement, Don’t worry, I will give you basic information about it. If you need to display data from the table in descending or ascending order, this tutorial is beneficial for you. So, you must follow all the given steps that will learn you a new concept.   What is … Continue reading

SQL CASE Statement with Multiple Conditions

SQL Case Statement -The case statement is the heart of SQL. Because It can control the execution of different sets of statements. It handles the WHEN/THEN statement.  By using it, we can filter & optimize queries through selection rows that satisfied our requirements. We can also use it in an insert, select, update or delete statement along with Where, Order By, Group By clause so on. As we know that we perform different actions in different conditions in our real world. So, the case statement is also similar to our real-world actions. lets’ we understand with the following real-world example … Continue reading

SQL Aggregate Functions – Example, Definition, Syntax

In this tutorial, we are going to discuss SQL aggregate functions like COUNT(), SUM(), MAX(), MIN(). AVG() with an example, definition & syntax. you will learn it in some simple steps that are very simple to understand. Aggregate Functions in SQL Aggregate functions calculate the string & numeric values of multiple records of a particular column and return a numeric result. Using aggregate functions in SQL, you can find out the largest value, lowest value, average value, total number of records, & total sum of values of a specified column. Aggregate functions mainly used with the GROUP BY  & HAVING … Continue reading

SQL Join 3 Tables – Join Query for Three Tables with Example

In this tutorial, We will discuss SQL JOIN 3 tables with the best example. with this example, you will definitely become an expert in joining three or more tables. Even you will get the standard SQL join query for 3 tables that will be very useful to join the largest & complex tables. As you know that we have always to write multiple select statements to select data from multiple tables. But It is not good for a large number of records & tables. It may increase the execution time or kill the queries. So, we need to write a … Continue reading