# EPOC OPL Guide & Reference Glossary

## Index T

Term | Topic | Meaning | See Also
table | Data File Handling | The physical representation of a set of records consisting of fields within a database file. The tabular model of databases is sometimes called the relational database model. | view, database
transaction | Data File Handling | A fundamental concept in the EPOC DBMS. A transaction is a single pass of related changes to a database file grouped together for efficiency and data integrity. EPOC DBMS transactions are atomic operations. | DBMS, database, commit, atomic
translate | Introducing OPL | To convert a program from human-readable and editable text into a form which OPL can run. | program
translator | OPL Basics | A program which translates OPL code from source form to runnable form. | source code