This message appears when an INSERT or UPDATE statement specifies a character string value that is longer than the maximum that can be stored in the target column. The length of the character string must be less than or equal to the maximum length permitted by the column.

This message is also returned if the concatenation operator ( || ) or the CONCAT( ) function produces a string that is 4057 or more characters in length. The maximum length of a concatenated string is 4056 characters.