SQL IS NOT NULL Operator
SQL IS NOT NULL Operator is a logical Operator. We use this operator to check if a row has a nonempty value in a particular column. In short, we use this operator to detect NOT NULL values. If a check column has a NULL value for a particular row, then this operator will return FALSE. This operator works just opposite of the IS NULL Operator in SQL. This operator generally works WHERE Clause. To summarize this in short, we use the IS NOT NULL Operator to select those rows that have some data present.
Syntax:
SELECT *
FROM table_name
WHERE column_name IS NOT NULL;
SQL IS NOT NULL Operator
In SQL, the IS NOT NULL Operator is a logical operator. Its application is just the opposite of IS NULL Operator. Unlike IS NULL Operator, this operator returns True, if the value is not a NULL value. It is usually used with a WHERE clause to filter the table data. It filters out the data and separates it from records where specified columns have NULL values. Because of this reasons, it plays a crucial role in data visualization.
In this article, we will learn various applications of IS NOT NULL Operator with their respective explanation and examples. We will be covering all the use cases of IS NOT NULL Operator. We will see how to use this operator wisely in some common scenarios. We will also explore how we can implement this operator with other SQL functions.
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