Ladies and Gentemen, in a database project I ported an Oracle database definition to PostgreSQL 7.3.2 as an aside. During this process I found a couple of incompatibilities in the SQL dialects of both DBMS.
I compiled the following list for whatever it might be good for - for example to transscribe Oracle DD statements to PostgreSQL DD statements. Or to enhance PostgreSQL to increase Oracle compatibility - as far as this might be sensible and desirable. Or to establish a more comprehensive Oracle/PostgreSQL list. Since this is nothing I am actively working on I don't expect any response. However, if it should be useful for you, I'd appreciate some feedback. + At least the following names are a) different and b) PostgreSQL does not understand the Oracle equivalent: Oracle: PostgreSQL: VARCHAR2 varchar NUMBER int CLOB bytea sysdate current_date + CREATE SCHEMA: Sometimes a schema created in PostgreSQL disappears if there is nothing in it. + CREATE INDEX: PostgreSQL should allow specifying a namespace for the index, even if the namespace is required to be the same as the parent table. This would increase Oracle compatibility. + CREATE SEQUENCE: Oracle allows (or requires) "INCREMENT BY" instead of just "INCREMENT". Same for "START WITH" vs. "START". Oracle allows explicit NOCYCLE and NOCACHE. It also has a keyword ORDER. + Indexes and table constraints share the same namespace. + Oracle's DISABLE in foreign key specification in table constraint is unknown by PostgreSQL. + PostgreSQL does not support Oracle's CREATE PUBLIC SYNONYM + PostgreSQL does not support the NUMBER keyword without (...) i.e. something in parenthesis following it. + Oracle's SEQ_KATALOGID.nextval should be translated to nextval('SEQ_KATALOGID'). Rainer Klute IT-Consulting GmbH Dipl.-Inform. Rainer Klute E-Mail: [EMAIL PROTECTED] Körner Grund 24 Telefon: +49 172 2324824 D-44143 Dortmund Telefax: +49 231 5349423 ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings