@Ian Fox :
The error you are receiving suggests that the database you are working with does not have an information_schema.columns table or the user you are logged in as does not have permissions to access it. The information_schema.columns table is a system catalog view that contains information about all columns in all tables in a database, including their names. It is commonly used to search for column names. To search for columns that contain "XYZ", you can use the following SQL statement:
SELECT table_name, column_name
FROM information_schema.columns
WHERE column_name LIKE '%XYZ%'
ORDER BY table_name, column_name;
If you still encounter an error, you may want to check if you have the necessary permissions to query the information_schema.columns table, or if the table is available in your database.