-1754: A table may contain only one column of type LONG 

Explanation:

In SQLMODE ORACLE, only one column of data type LONG is permitted in a <CREATE TABLE statement>.

User Action:

  1. At the most one column can be used of datatype LONG.
  2. If you can do without ORACLE compatibility, generate the CREATE TABLE in SQLMODE INTERNAL with modified data types, if required, and several LONG columns.