varchar*,varchar,-1
nvarchar*,varchar,-1
char*,char,-1
nchar*,char,-1
number*,numeric,-1
*float,float4,-1
*double,float8-1
date*,timestamp,-1
timestamp*,timestamp,-1
*raw,bytea,-1
*blob,bytea,-1
*clob,text,-1
long raw,bytea,-1
long,text,-1
int*,numeric,-1
interval*,varchar,100
real*,float4,-1
*rowid,varchar,18
decimal,numeric,-1