It has a mostly compliant SQL dialect.
It is more compatible with other DBMSs, specially DB2 but also Oracle.
It implements a host of procedural programming languages and extensions, including types and operators.
It is way faster, and scales way more.
It is totally free (no paying Oracle to do InnoDB hot backups).
It is way more consistent.
It does geographic data second to none.
Its development is totally open and way faster. Reading the PostgreSQL TODO wiki page is a joy.
And so on and so on.
It has a mostly compliant SQL dialect.
It is more compatible with other DBMSs, specially DB2 but also Oracle.
It implements a host of procedural programming languages and extensions, including types and operators.
It is way faster, and scales way more.
It is totally free (no paying Oracle to do InnoDB hot backups).
It is way more consistent.
It does geographic data second to none.
Its development is totally open and way faster. Reading the PostgreSQL TODO wiki page is a joy.
And so on and so on.