Let’s Setup an Environment

We will use the following table to implement our approaches.

Table – w3wiki

To create this table in our database, we have to execute the following MySQL queries:

Create Table name w3wiki:

CREATE TABLE w3wiki(
user_id int PRIMARY KEY,
name varchar(100),
montly_score int,
total_score int
);

Insert the value in w3wiki table:

INSERT INTO w3wiki(user_id,name, montly_score , total_score)
VALUES(01,'Vishu',50,150);
INSERT INTO w3wiki(user_id,name, montly_score , total_score)
VALUES(02,'Neeraj',45,125);
INSERT INTO w3wiki(user_id,name, montly_score , total_score)
VALUES(03,'Aayush',0,110);
INSERT INTO w3wiki(user_id,name, montly_score , total_score)
VALUES(04,'Sumit',40,100);
INSERT INTO w3wiki(user_id,name, montly_score , total_score)
VALUES(05,'Vivek',0,95);

After executing the above queries, we can observe a table has been created in our database.

How to Avoid Dividing by Zero in MySQLHow to Avoid Dividing by Zero in SQL

MySQL is an open-source relational database management system in short RDBMS. We use it to store, retrieve, and manipulate data very efficiently. In MySQL “Divide by zero error” is encountered when we try to divide one column with another column that contains some zero values.

“Diving by zero error” is a common problem while performing division in most of the data. It can eventually solve some basic step-by-step approaches.

In this article, we are going to demonstrate various methods through which we can tackle “Divide by zero error” very easily. We are going to see various approaches with clear and concise examples along with their explanations.

How to Avoid Dividing by Zero in SQL

MySQL allows us several approaches through which we can ignore dividing by zero error. There are certain built-in functions and some queries along with the where clause, can help us to achieve our goal. Below are some mentioned methods through which we can avoid dividing by zero error.

1. Using the CASE statement

2. Using NULLIF()

3. Using WHERE Clause

Similar Reads

Let’s Setup an Environment

We will use the following table to implement our approaches....

1. Using CASE statement

A CASE statement is a conditional expression used to perform different actions based on the specified conditions....

2. Using NULLIF()

In MySQL, NULLIF() operator is used to return a NULL value when our specified expressions are equals. We are going to use it to return NULL values when we encounter zero values in our divisor column....

3. Using WHERE Clause

WHERE Clause is used to filter rows based on some conditions. However, WHERE Clause directly cannot prevent dividing by zero error but it can skip those rows....

Conclusion

Overall, to avoid dividing by zero in MySQL we can use certain built-in functions or with some queries along with where clause. We have explained different methods such as NULLIF() function, WHERE Clause and CASE statement. We have explained all the methods with clear and concise examples. Now you have good understanding of tackling dividing by zero error. Now you can write queries related to it and can get the desired result....

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