Name
Abstract | ||
|---|---|---|
DB2 XML is a hybrid database system that combines the relational capabilities of DB2 Universal Database™ (UDB) with comprehensive native XML support. DB2 XML augments DB2® UDB with a native XML store, XML indexes, and query processing capabilities for both XQuery and SQL/XML that are integrated with those of SQL. This paper presents the extensions made to the DB2 UDB compiler, and especially its cost-based query optimizer, to support XQuery and SQL/XML queries, using much of the same infrastructure developed for relational data queried by SQL. It describes the challenges to the relational infrastructure that supporting XQuery and SQL/XML poses and provides the rationale for the extensions that were made to the three main parts of the optimizer: the plan operators, the cardinality and cost model, and statistics collection. |
Year | DOI | Venue |
|---|---|---|
2006 | 10.1147/sj.452.0299 | IBM Systems Journal |
Keywords | Field | DocType |
db2 xml augments db2,relational data,xml query,db2 universal databasetm,db2 udb compiler,db2 xml,xml index,relational capability,native xml store,cost-based optimization,comprehensive native xml support | Efficient XML Interchange,XML Encryption,Streaming XML,XML validation,Computer science,XML database,XML schema,XML Schema Editor,Database,XQuery | Journal |
Volume | Issue | ISSN |
45 | 2 | 0018-8670 |
Citations | PageRank | References |
25 | 1.07 | 33 |
Authors | ||
8 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| A. Balmin | 1 | 34 | 1.62 |
| T. Eliaz | 2 | 25 | 1.07 |
| J. Hornibrook | 3 | 25 | 1.07 |
| L. Lim | 4 | 25 | 1.07 |
| Guy M. Lohman | 5 | 2846 | 965.94 |
| D. Simmen | 6 | 25 | 1.07 |
| M. Wang | 7 | 25 | 2.09 |
| Zhang Chao | 8 | 87 | 24.26 |