The original Export utility, exp, is the client-side program that reads a database over a session and writes a proprietary dump file; imp is its import counterpart. Data Pump (expdp and impdp) replaced the pair in 10g with a server-side, parallel design and a different dump-file format.

Migrations care because legacy runbooks and cron jobs still call exp for backups and schema copies. Its dump files cannot be read by Data Pump import, and neither format can be loaded directly into an Azure database service, so an inventory of "exports" must distinguish old-style dumps from Data Pump dumps before deciding what to keep.

Oracle's Utilities guide says original Export has been desupported for general use since 11g, with backward migration of XMLType data to 10.2 the only remaining supported use, and recommends Data Pump. The 26ai Upgrade Guide lists the utility itself as desupported (notice dated April 2023). Because the 11g statement is phrased as a limited desupport rather than a deprecation of a named release, no deprecation release is recorded here.