CONVERT buffer-option reserve-option history-option
where:
Specifies either BUFFER, to buffer records written to the output database that improves performance and reduces input/output time, or NOBUFFER to eliminate buffering.
If omitted, NOBUFFER is used by default.
Note: When using BUFFER, an unsuccessful completion could corrupt the output database.
Specifies either RESERVE, to place a reserve on the output database for the duration of the convert operation, or NORESERVE, to not place a reserve on the output database
Specify NORESERVE only if you are certain that no one else could be updating the output database while the CONVERT operation is in process.
If omitted, RESERVE is used by default.
Deletes detail history when you convert a database
Specify either HISTDEL to delete the detail history subfile only, or HISTDELALL to delete the history subfile and all basic history records.
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