#### How to set cache preferences

1. In Edit Data Set, choose Cache Preference. Cache Preference displays the data-set caching options.
2. Choose Cache data set data for report preview. BIRT Report Designer enables the cache options.
3. Specify the size limit of the data-set cache. Figure 3-12 shows a sample configuration.

Figure 3-12 Setting data-set cache preferences

- To cache a portion of the data set, select Cache and use first, then type the number of rows to cache in the rows box.
- To cache the entire result set, select Cache entire data set.
- To clear the cache, choose Clear Cache. After you choose Clear Cache, BIRT Report Designer displays a message that states that the cache has been cleared.

4. Choose OK.