Error number: 4028; Symbol: ER_TABLE_MUST_HAVE_A_VISIBLE_COLUMN; SQLSTATE: HY000
Message: A table must have at least one visible column.
Error 4028: ER_TABLE_MUST_HAVE_A_VISIBLE_COLUMN
Error Explanation:
MySQL Error 4028 occurs when attempting to create a new table without visible columns. The error message states that visible columns are preferred to exist within the new table, hence preventing this error.
Common Case:
This error often occurs when attempting to create a table without any visible columns. All tables must have at least one visible column for MySQL to function properly.
Resolution:
To resolve this error, the user should create a visible column within the table. MySQL requires that at least one column must be visible, or visible and updatable, depending on the situations. In most cases, adding an integer field or a text field is an effective solution. Additionally, if the user wishes to add an invisible field to the table, the visibility of the field can be modified in the alter table command.