Oci

Oracle Client Interface

a C interface of oracle database

Batch data unload

High performance for Oracle text unload or export with ociuldr

my performance question:
OCI vs PRO*C , JDBC , ODBC , DBI

C I/O vs PL/SQL UTL_FILE , Java io.File, Perl file

Single-thread I/O vs Multi-thread I/O , Multi-node multi-process I/O

Memory buffer performance