Fundamentals of database systems (2nd ed.)
Fundamentals of database systems (2nd ed.)
Object-oriented database management: applications in engineering and computer science
Object-oriented database management: applications in engineering and computer science
PODS '97 Proceedings of the sixteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Regular path queries with constraints
PODS '97 Proceedings of the sixteenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Path constraints on semistructured and structured data
PODS '98 Proceedings of the seventeenth ACM SIGACT-SIGMOD-SIGART symposium on Principles of database systems
Extracting schema from semistructured data
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
SIGMOD '99 Proceedings of the 1999 ACM SIGMOD international conference on Management of data
ICDT '97 Proceedings of the 6th International Conference on Database Theory
Adding Structure to Unstructured Data
ICDT '97 Proceedings of the 6th International Conference on Database Theory
DataGuides: Enabling Query Formulation and Optimization in Semistructured Databases
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
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As our world gets more networked, ever increasing amounts of information are being stored in LDAP directories. While LDAP directories have considerable flexibility in the modeling and retrieval of information for network applications, the notion of schema they provide for enabling consistent and coherent representation of directory information is rather weak. In this paper, we propose an expressive notion of bounding-schemas for LDAP directories, and illustrate their practical utility. Bounding-schemas are based on lower bound and upper bound specifications for the content and structure of an LDAP directory. Given a bounding-schema specification, we present algorithms to efficiently determine: (i) if an LDAP directory is legal w.r.t. the bounding-schema, and (ii) if directory insertions and deletions preserve legality. Finally, we show that the notion of bounding-schemas has wider applicability, beyond the specific context of LDAP directories.