Abstract: Methods for updating query results are provided. In one embodiment, a stored query is modified to retrieve a selected subset of rows from stored query results without retrieving a remaining portion of the stored results. The modified query is executed, updated results are obtained from the modified query, and the updated results are displayed.

Abstract: An eager reference-counting garbage collection system performs a static analysis on the intermediate representation of a program. The system then uses liveness information to inject eager reference-counting updates into the program. Through the use of the liveness information, reference-counting decrements can be made earlier in execution than in traditional reference-counting schemes, freeing up memory more efficiently. Additionally, a reference-counting subsumption optimization tool identifies redundant reference-counting updates and removes them, lowering the number of garbage collection update calls and improving execution throughput. Reference-counting subsumption can also be used as a throughput enhancer in traditional reference-counting schemes that maintain up-to-date tallies of references from the stack.

Abstract: Directories in a file system are defined with a dummy cluster in a file allocation table as the initial entry. Subsequent clusters in a directory's definition may define any data for the directory that can be changed in a transaction-safe mode. A directory may be modified in a transaction-safe mode by modifying any of the subsequent clusters while tracking changes in a second file allocation table. When the changes have been made to the directory, a pointer to the second file allocation table may be switched to indicate that the second file allocation table is now last known good. The first file allocation table may then be synchronized with the second.