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Handling NULL values in SQL

22/08/2020 by JaiSchool

If a column’s field has NULL value then it means, it is blank. This field has no value. When a column’s value is NULL then it can’t be determined by an eqal to (=) operator. The way of identifying NULL values is, you need to use IS NULL or IS NOT NULL statement. NOT NULL … Read more

Categories SQL Tags IS NOT NULL, IS NULL, null handling in sql, sql null Leave a comment

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