Check MySQL Field Not Empty

In MySQL, you can use conditional statements to determine if a field is empty. The specific method is as follows:

  1. Use the IS NOT NULL keyword to determine if a field is not empty, for example:
SELECT * FROM table_name WHERE column_name IS NOT NULL;
  1. The COALESCE function can be used to determine if a field is empty, for example:
SELECT * FROM table_name WHERE COALESCE(column_name, '') <> '';

Both of the methods can be used to determine if the field is not empty.

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