| 摘要 |
<p>Scheme for adding an element (21) to a database system (20) which comprises a memory with limited storage capacity. The element (21) comprises data and metadata. An individual lifetime is defined for the element (21) in the metadata, and then the data and said metadata are stored in the memory. The metadata are examined from time-to-time to determine whether the lifetime of an element expired. If this is the case the respective element (19) is automatically removed.</p> |
