How can MySQL search for fields with empty values?

In MySQL, you can use the IS NULL or IS NOT NULL operators to query for values that are empty in a field.

For example, if there is a table called “table_name” with a column named “column_name”, you can use the following query to search for empty values in the column:

SELECT * FROM table_name WHERE column_name IS NULL;

To search for values in a field that are not empty, you can use the IS NOT NULL operator.

SELECT * FROM table_name WHERE column_name IS NOT NULL;

In this way, you can search for values that are either empty or not empty in the field.

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