
US Patent No: 6,480,839
Number of patents in Portfolio can not be more than 2000
System and method for improving database data manipulation using direct indexing within a B*tree index having a tunable index organization
Stats
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Nov 12, 2002
Issued date -
Jul 18, 2000
filing date -
09/618,621
serial no -
In Force
status
Importance
Abstract
A system and method provide multi-threaded database access simultaneous to a plurality of users. One or more searchable indices are created. The searchable indices each have a B*tree having a plurality of nodes arranged hierarchically from a root node. The system and method maintain a known position for a matching query value within the ordered index using the first key count and the one or more second key counts, and search the one or more searchable indices using the first key count and the one or more second key counts. The plurality of nodes have a modify counter for providing an indication of how many times the node has been altered, a number of keys indicator, a first key count and node pointer pair, one or more second key count and node pointer pairs, and one or more keys. The number of one or more keys and the number of one or more second key count and node pointer pairs is equal to the number provided in the number of keys indicator.
First Claim
Related Publications
International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 6,366,903 Index and materialized view selection for a given workload | 54 | 2000 | |
| 6,356,890 Merging materialized view pairs for database workload materialized view selection | 24 | 2000 | |
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| 6,278,992 Search engine using indexing method for storing and retrieving data | 159 | 1999 | |
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| 6,175,835 Layered index with a basic unbalanced partitioned index that allows a balanced structure of blocks | 49 | 1999 | |
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| 6,360,215 Method and apparatus for retrieving documents based on information other than document content | 204 | 1998 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | May 12, 2014 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |