DataSync settings are accessed from the Gear menu

 
               Convert 
                              	 LOBs to VARCHAR or VARBINARY
                        	This setting tells DataSync to change LOBs to either VARCHAR or VARBINARY 
                        	 depending on the data. Enter the target column size (default is 1024). 
                        	 This is the default setting. When set, Preserve LOBs will not be set.
                        	
                     
Preserve 
                              	 LOBs
                        	This setting tells DataSync to send LOBs to the target without converting 
                        	 them to VARCHAR or VARBINARY. When set, incremental updates will not 
                        	 be allowed and only full loads will be supported. When set, Convert 
                        	 LOBs to VARCHAR or VARBINARY will not be set.
                        	
                     
Treat 
                              	 CHAR as CLOB on Target Table
                        	If your target data base does not support very large character fields,select 
                        	 Treat CHAR as CLOB on Target Table and enter the field size. The default 
                        	 value is 1024 but there is no minimum or maximum value.
                        	
                     
Treat 
                              	 CHAR as VARCHAR on Target Table
                        	If character fields are long and not fully populated, select Treat 
                        	 CHAR as VARCHAR on Target Table and enter the field size. 
                        	
                        	Note: The field should contain 
                        	 at least 5 characters as there is minimal space savings for short 
                        	 CHAR fields.
                        	
                        	Example: If the source table 
                        	 has a CHAR(100) field that averages 10 characters in length, it will 
                        	 be transformed into a VARCHAR(100) field on the target table after 
                        	 the synchronization. This could save an average of 90 characters per 
                        	 row.
                        	
                     
Maximum 
                              	 Number/Decimal Precision
                        	Enter the maximum numeric or decimal precision value in Maximum Numeric/Decimal 
                        	 Precision.