Integrating tablespaces with different block sizes
First Claim
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1. A method for database systems to access data from other database systems, the method comprising the steps of:
- a first database system directly storing first data in first data blocks having a first data block size;
said first database system directly accessing a copy of second data blocks in which a second database system directly stored second data; and
said second data blocks having at least one data block with a second data block size different than said first data block size.
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Abstract
Provided herein is a mechanism that allows a given database system to access data blocks from another database system, where data blocks from the given database system and data blocks from the other database system have different sizes. According to an aspect of the present invention, a tablespace in the other database system contained the data blocks. The tablespace is detached from the other database system and integrated into the given database, which is capable of processing data stored in data blocks of a different sizes.
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Citations
24 Claims
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1. A method for database systems to access data from other database systems, the method comprising the steps of:
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a first database system directly storing first data in first data blocks having a first data block size;
said first database system directly accessing a copy of second data blocks in which a second database system directly stored second data; and
said second data blocks having at least one data block with a second data block size different than said first data block size. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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13. A computer-readable medium carrying one or more sequences of instructions for database systems to access data from other database systems, wherein execution of the one or more sequences of instructions by one or more processors causes the one or more processors to perform the steps of:
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a first database system directly storing first data in first data blocks having a first data block size;
said first database system directly accessing a copy of second data blocks in which a second database system directly stored second data; and
said second data blocks having at least one data block with a second data block size different than said first data block size.
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Specification