MySQL 1104: Incorrect column name.

What is MySQL 1104: Incorrect column name.

Check the query for typos in the column names. Ensure they match exactly with the column names in the database schema.

Run `SHOW COLUMNS FROM tablename;` replacing `tablename` with the name of the table you're querying. Compare the output with the column names used in your query to verify they exist and are correctly spelled.

If the error persists, check for any aliases used in your query that might be incorrectly referenced.

Ensure that if you are using JOINs, the column names are qualified with the correct table alias, especially if there are columns with the same name in multiple tables.

5. Verify that you are not using any reserved keywords as column names without backticks. If so, enclose the column names in backticks.