The Content Management Service cannot create reference tables for JDBC connection types in the following situations:
A table has a column of Varchar2 or Varchar data type with a precision greater than 2000.
A table has a column of Char data type with a precision greater than 1000.
When you run the workflow, if the column precision is greater, the workflow resets the precision to 2000 for Varchar2 or Varchar and 1000 for Char data types. This might result in truncation of data.