DATABASE SYSTEM
First Claim
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1. A database system including:
- a storage device for maintaining a plurality of rows;
a plurality of access modules for accessing in parallel a respectively assigned one or more of the rows;
an interface for receiving data indicative of a table defined by a selection of the rows; and
a processor responsive to the data for selectively designating the table to be a single-module table wherein the selection of rows are collectively assigned to an owning one of the access modules.
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Abstract
There is provided a parallel database system 1. System 1 includes a storage device 2 for maintaining a plurality of rows 3. System 1 also includes a plurality of access modules 4 for accessing in parallel a respectively assigned one or more of rows 3. An interface 5 receives data 6 indicative of a table 7 defined by a selection 8 of rows 3. A processor 9 is responsive to data 6 for selectively designating table 7 to be a single-module table. In this single module table, selection 8 is collectively assigned to an owning one of modules 4, indicated by reference numeral 10.
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Citations
17 Claims
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1. A database system including:
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a storage device for maintaining a plurality of rows;
a plurality of access modules for accessing in parallel a respectively assigned one or more of the rows;
an interface for receiving data indicative of a table defined by a selection of the rows; and
a processor responsive to the data for selectively designating the table to be a single-module table wherein the selection of rows are collectively assigned to an owning one of the access modules. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A database system including:
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a plurality of nodes for accessing data; and
a plurality of primary storage locations each for maintaining a portion of the data, each portion being maintained for access by a respective associated one of the nodes; and
a secondary storage location for selectively maintaining one or more portions of the data for access by a predetermined one or more of the nodes. - View Dependent Claims (17)
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Specification