https://www.oraclescripts.com/tags/legacy-export/Recent content in Legacy Export on Oracle ScriptsHugo -- gohugo.ioenOracleScripts.comThu, 14 May 2026 00:00:00 +0000https://www.oraclescripts.com/post/oracle-export-via-named-pipe-mknod/Thu, 14 May 2026 00:00:00 +0000https://www.oraclescripts.com/post/oracle-export-via-named-pipe-mknod/ <h2 id="oracle-export-through-a-named-pipe-with-mknod-for-space-constrained-hosts">Oracle Export Through a Named Pipe with mknod for Space-Constrained Hosts</h2> <h2 id="purpose">Purpose</h2> <p>Oracle's original Export utility (<code>exp</code>) writes a binary dump file. On production hosts where disk space is tight — where staging a full-database dump and its compressed copy simultaneously would exhaust the filesystem — the classic workaround is a named pipe (FIFO). A named pipe looks like a file on the filesystem but has no storage: bytes written to one end are immediately readable from the other. By piping the Export directly through gzip or netcat, the dump never touches disk as an uncompressed file.</p>