DATABASE ACCESS SYSTEM AND RECORDING MEDIUM WHICH RECORDS PROGRAM FOR CONTROLLING THE SYSTEM
First Claim
1. A database access system which accesses tables contained in a plurality of databases distributively arranged on a network, said system comprising:
- data link information defining means which defines, in a data link information file, a link from a table contained in one of the plurality of databases to another table in another database in the plurality of databases, with respect to each table contained in the plurality of databases which are distributively arranged on the network; and
database retrieval means which retrieves, when accessing a table contained in one of the plurality of databases, a link from the table to another table contained in another database in the plurality of databases, by referring to the data link information file, and which accesses the another table linked from the accessed table contained in the another database specified by the data link information file.
1 Assignment
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Accused Products
Abstract
A data access system can access a plurality of database servers distrivitively arranged on a network. A user defines and records, with respect to each of the tables stored in a database, links from the table to another table stored in another database in a data link information file and the manner of displaying data in a specification file with her/his WWW client through a WWW server and the database server. The WWW server, when the user accesses a table stored in the database through the database server from her/his WWW client, refers the data link information file and detects the link to another table in the another database, and accesses the another table. It displays accessed data items of the another table in the manner defined in the corresponding one of the specification files.
25 Citations
7 Claims
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1. A database access system which accesses tables contained in a plurality of databases distributively arranged on a network, said system comprising:
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data link information defining means which defines, in a data link information file, a link from a table contained in one of the plurality of databases to another table in another database in the plurality of databases, with respect to each table contained in the plurality of databases which are distributively arranged on the network; and
database retrieval means which retrieves, when accessing a table contained in one of the plurality of databases, a link from the table to another table contained in another database in the plurality of databases, by referring to the data link information file, and which accesses the another table linked from the accessed table contained in the another database specified by the data link information file. - View Dependent Claims (2, 3, 4, 5)
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6. A computer readable recording medium which records programs read out by a computer, said programs including:
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a data link information definition function which defines, in a data link information file, a link from a table included in one of a plurality of databases to another table included in another database in the plurality of databases, with respect to each table contained in the plurality of databases which are distributively arranged on a network; and
a database retrieval process function which retrieves, when accessing a table contained in one of the plurality of databases, a link to a table included in another database in the plurality of databases, by referring to the data link information file, and which accesses the another table linked from the accessed table contained in the another database specified by the data link information file. - View Dependent Claims (7)
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Specification