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Can an Oracle Database connect via a dblink to any older Oracle database?

April 26, 2017Connect Older oracle database

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Can an Oracle Database connect via a dblink to any older Oracle database?

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10 Posted

As a general rule, any server can connect to any supported (primary error correction) older server. This means that Oracle8, 8i, and 9.0.1 can connect (via a dblink) to an Oracle 7.3.4 or Oracle8 database. However, since Oracle 7.3.4 was desupported before Oracle9i Release 2 (9.2) was released, 9.2 does not support Oracle 7.3.4. Beware there are some issues with Oracle8i clients and databases connecting to an Oracle 7.3.4 database. If you experience a hang or other error, search for note 68059.1 in metalink.