EP0211162A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Distributed data base directory system with control blocks for sequential and parallel queries
Assignee: International Business Machines Corp
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Filing: 1986-05-16
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Granted: —
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Expires: 2006-05-16
Abstract
Abstract A database directory system for processing user queries includes a plurality of directory service units (DSU) which provide one or more directory service functions, the system including a directory operation control block for controlling directory system functions for user queries, the directory operation control block containing an affinity list, a query algorithm control field, an integrity parameters field and an access control field and a query control block, the query control block containing information indicating the origin of a query received by a DSU.
Inventors
- 👤 Francis Dennis Bartocci
- 👤 Joha Hyun Won
- 👤 Harinder S. Singh
- 👤 Inder Gopal
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-24 15:28
CPC Classifications
G; G06; G06F; G06F16/00; G06F16/20; G06F16/24; G06F16/245; G06F16/2453; G06F16/24532; G06F16/25
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
84 words
In a database directory system for processing user queries, said database directory including a plurality of directory service units (DSU) which provide one or more directory service functions, structure including: a directory operation control block for controlling directory system functions for said user queries, said directory operation control block containing an affinity list, a query algorithm control field, an integrity parameters field and an access control field; and a query control block containing information indicating the origin of a query received by said DSU.
Claim 2
Dependent Claim
84 words
In a database directory system for processing user queries, said database directory including a plurality of directory service units (DSU) which provide one or more directory service functions, structure including: a directory operation control block for controlling directory system functions for said user queries, said directory operation control block containing an affinity list, a query algorithm control field, an integrity parameters field and an access control field; and a query control block containing information indicating the origin of a query received by said DSU.
Claim 3
Dependent Claim
36 words
Structure in accordance with Claim 1 in which said affinity list describes the logical relationship between the DSU in which said directory operation control block is located and other members of a particular directory data base.
Claim 4
Dependent Claim
42 words
Structure in accordance with Claim 2 in which said affinity list describes whether said other members of a particular directory data base are in a superior, a subordinate, or a peer relationship to said DSU in which said affinity list is located.
Claim 5
Dependent Claim
30 words
Structure in accordance with Claim 1 in which said query algorithm control field defines actions to be taken within said DSU to resolve responses to search queries to said DSU.
Claim 6
Dependent Claim
23 words
Structure in accordance with Claim 1 in which said access control field describes the types of access to be permitted to said DSU.
Claim 7
Dependent Claim
27 words
Structure in accordance with Claim 1 in which said integrity parameters field describe the degree of error tolerance to be permitted in data transactions with said DSU.
Claim 8
Dependent Claim
30 words
Structure in accordance with Claim 1 in which said query control block contains information as to whether said user query is to be in a serial or a parallel mode.
Claim 9
Dependent Claim
22 words
Structure in accordance with Claim 7 in which said query control block also includes correlation information uniquely identifying each of said queries.
Claim 10
Dependent Claim
29 words
Structure in accordance with Claim 8 in which said query control block also includes a listing of the other of said DSUs to which said query may be sent.
Claim 11
Dependent Claim
30 words
Structure in accordance with Claim 9 in which said query control block also contains information as to the relative priorities of said other of said DSUs in receiving said query.
Claim 12
Dependent Claim
45 words
Structure in accordance with Claim 10 in which said query control block also contains information as to the propagation of said query by said DSU and the receipt of a response by said DSU to said query by one of said other of said DSUs.
Claim 13
Dependent Claim
39 words
Structure in accordance with Claim 7 in which said query control block in each DSU includes means for adapting the information as to serial or parallel propagation mode in dependence on the propagation mode indicated in a received query.
References Cited (Backward Citations)
No citation records indexed.
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