What functions does a data dictionary perform ?
In a data management system, the principal functions performed by the data dictionary are Management of data definitions Provision of information for evaluation Support for software development Support form documentation Ensuring that the data definitions are flexible and up-to-date. A field containing currency amounts (data type CURR) must be assigned to a reference table and a reference field. Explain. As a reference table, a system table containing all the valid currencies is assigned or any other table which contains a field with the currency key format. This field is called as reference field. The assignment of the field containing currency amounts to the reference field is made at runtime. The value in the reference field determines the currency of the amount.
