bdfm1m19Messages (System Error, Online, Offline) and Master Glossary

O

ordinal number
The relative position of a prime block in a file. Ordinal numbers start at zero.

organization
In the TPFDF product, the ascending (UP) or descending (DOWN) sequence of logical records (LRECs) in a subfile. If a subfile is organized, the TPFDF product can access the LRECs without necessarily reading the whole subfile. The database administrator specifies how a file is to be organized by coding the DBDEF macro instructions that define the file.

overflow block
Any block in a subfile that is not a prime block. A subfile can contain zero or more overflow blocks, which are always pool records. See also prime block and pool file.