Many relational databases now offer different string types, either CHAR(n)/VARCHAR(n) or NCHAR(n)/NVARCHAR(n). The later ones support unicode while the first ones are more resitricted. Flowman can manage schemas in relational databases, but currently always uses NCHAR/NVARCHAR (if available). Since these column types will consume more storage capacity, it is desirable to be able to explicitly specify either NCHAR or CHAR
Many relational databases now offer different string types, either CHAR(n)/VARCHAR(n) or NCHAR(n)/NVARCHAR(n). The later ones support unicode while the first ones are more resitricted. Flowman can manage schemas in relational databases, but currently always uses NCHAR/NVARCHAR (if available). Since these column types will consume more storage capacity, it is desirable to be able to explicitly specify either NCHAR or CHAR