DESCRIBE provides information about a table's columns. col_name
may be a column name or a string containing the SQL `%' and `_'
wildcard characters.
If the column types are different than you expect them to be based on a
CREATE TABLE statement, note that MySQL sometimes changes column
types.
7.6.1 Silent column specification changes.
This statement is provided for Oracle compatibility.
The SHOW statement provides similar information.
SHOW.