An access service receives datatype names as part of create table or alter table commands:
If the access service is in passthrough mode, the datatype names are not modified.
If the access service is in sybase mode, Sybase names are assumed and are converted to corresponding target-specific datatype names.
A given target may not be able to support all Open Client and Open Server datatypes, but it permits conversion to an equivalent or compatible datatype. For example, the CS_MONEY datatype can be converted to a numeric (19,4) or equivalent datatype.
For more information about transformation modes, see Chapter 5, “Issuing SQL Statements.”