DLFM: A Transactional Resource Manager Hui-I Hsiao and Inderpal Narang   View Paper (PDF)   Return to Industrial Sessions Abstract The DataLinks technology developed at IBM Almaden Research Center and now available in DB2 UDB 5.2 introduces a new data type called DATALINK for a database to reference and manage files stored external to the database. An external file is put under a database control by linking the file to the database. Control to a file can also be removed by unlinking it. The technology provides transactional semantics with respect to linking or unlinking the file when DATALINK value is stored or updated. Further more, it provides the following set of properties: (1) managing access control to linked files, (2) enforcing referential integrity, such as referenced file cannot be deleted or renamed as long as it is referenced from the RDBMS, and (3) providing coordinated backup and recovery of RDBMS data with the file data. References Note: References link to DBLP on the Web. [1] E. F. Codd : A Relational Model of Data for Large Shared Data Banks. CACM 13(6) : 377-387(1970) [2] ... [3] Mark Papiani , Jasmin Wason , Alistair N. Dunlop , Denis Nicole : A Distributed Scientific Data Archive Using the Web, XML and SQL/MED. SIGMOD Record 28(3) : 56-62(1999) [4] ... [5] Theo Härder , Andreas Reuter : Principles of Transaction-Oriented Database Recovery. Computing Surveys 15(4) : 287-317(1983) [6] ... [7] ... [8] George Samaras , Kathryn Britton , Andrew Citron , C. Mohan : Two-Phase Commit Optimizations in a Commercial Distributed Environment. Distributed and Parallel Databases 3(4) : 325-360(1995) [9] C. Mohan : ARIES/KVL: A Key-Value Locking Method for Concurrency Control of Multiaction Transactions Operating on B-Tree Indexes. VLDB 1990 : 392-405 BIBTEX @inproceedings{DBLP:conf/sigmod/HsiaoN00,   author    = {Hui-I Hsiao and                 Inderpal Narang},    editor    = {Weidong Chen and                 Jeffrey F. Naughton and                 Philip A. Bernstein},    title     = {DLFM: A Transactional Resource Manager},    booktitle = {Proceedings of the 2000 ACM SIGMOD International Conference on                 Management of Data, May 16-18, 2000, Dallas, Texas, USA},    journal   = {SIGMOD Record},    publisher = {ACM},    volume    = {29},    number    = {2},    year      = {2000},    isbn      = {1-58113-218-2},    pages     = {518-528},    crossref  = {DBLP:conf/sigmod/2000},    bibsource = {DBLP, http://dblp.uni-trier.de} } }, DiSC'01 Copyright ©2002 ACM Inc.