I
- identity column
A column that provides a way for DB2 to automatically generate a numeric value for each row. The generated values are unique if cycling is not used. Identity columns are defined with the AS IDENTITY clause. Defining a unique index that contains only the identity column ensures uniqueness of values. A table can have no more than one identity column.
- IFI
Instrumentation facility interface.
- image copy
An exact reproduction of all or part of a table space. DB2 provides utility programs to make full image copies (to copy the entire table space) or incremental image copies (to copy only those pages that have been modified since the last image copy).
- IMS
Information Management System.
- IMS attachment facility
A DB2 subcomponent that uses ...
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