ro
asboolean (tdbcol)
ascurrency (tdbcol)
asdatetime (tdbcol)
asfloat (tdbcol)
asguiid (tdbcol)
asid (tdbcol)
asinteger (tdbcol)
aslargeint (tdbcol)
asmsestring (tdbcol)
assql (tdbcol)
asstring (tdbcol)
asvariant (tdbcol)
datatype (tdbcol)
fieldname (tdbcol)
isnull (tdbcol)
size (tdbcol)