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Generated January 23, 2018

Multi-level partitioned database system

Patent Number: 6,845,375

Patent Information

Abstract
A database system with multi-level partitioning is disclosed. The system includes a plurality of storage facilities with each storage facility storing data that represents rows of database tables. In each storage facility table rows corresponding to a specific table are logically ordered according to a row identifier, also called the row ID. The row ID includes a first value that is based on one or more columns of the table. The row ID also includes a second value that is based on one or more columns of the table. The row ID also includes a third value. The first value is calculated based on a single-level function. The single-level function is a combination of a plurality of functions. The single-level function produces different values for two rows when any of the plurality of functions produces different values for the two rows. The first value of the row ID is predominate in determining the order of the rows in the storage facilities. The second value determines the order of those rows with identical first values. If any rows have identical first and second values, the third value determines the order of those rows.
Patent Number: 6,845,375
Issue Date: 2005-01-18

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Citations

Patents cited by this patent

Patent Title
6,493,699 Defining and characterizing an analysis space for precomputed views
6,421,662 Generating and implementing indexes based on criteria set forth in queries
6,401,098 System for database creation, maintenance and access using event marking and two-dimensional partitioning
6,370,529 Multi-phase locking for partition maintenance operations
6,349,310 Database management system and method for accessing rows in a partitioned table
6,263,331 Hybrid hash join process
6,115,705 Relational database system and method for query processing using early aggregation
6,105,026 Multi-phase locking for partition maintenance operations
5,860,070 Method and apparatus of enforcing uniqueness of a key value for a row in a data table

Patents that cite this patent

Patent Title
8,615,503 Method for attaching partition online to range partitioned table
8,583,657 Method and apparatus for using a hash-partitioned index to access a table that is not partitioned or partitioned independently of the hash partitioned index
8,396,862 Product join dynamic partition elimination for multilevel partitioning
7,985,077 Miniature electrical ball and tube socket assembly with self-capturing multiple-contact-point coupling
7,980,862 Miniature electrical socket assembly with self-capturing multiple-contact-point coupling
7,837,476 Miniature electrical ball and tube socket assembly with self-capturing multiple-contact-point coupling
7,674,113 Miniature electrical ball and tube socket assembly with self-capturing multiple-contact-point coupling
7,491,069 Self-cleaning socket for microelectronic devices
7,209,923 Organizing structured and unstructured database columns using corpus analysis and context modeling to extract knowledge from linguistic phrases in the database
7,020,656 Partition exchange loading technique for fast addition of data to a data warehousing system

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