Oracle

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Oracle

  1. 1. Objectives of the Presentation Features Datatypes DDLs
  2. 2. We can’t possibly talk about everything on this list in detail!
  3. 3. So instead we are going to pick just a couple of them to look at in depth...
  4. 4. Oracle: #1 RDBMS Vendor Overall Microsoft 12.3% Other 15.5% IBM 31.8% Oracle 40.4%
  5. 5. Oracle’s Commitment to Windows 7 1993 • 2000 2001 2003 2004 2005 8i -> 9i - Real Application Clusters, PL/SQL enhancements, XMLType enhancements • 9i -> 10g - ASM space management, tracing and diagnostics, Windows Windows Windows Windows Windows DML error logging, async commit, more PL/SQL changes, x64 Server NT 2000 XP table/column encryption, restore points 2003 • 10g -> 11g - Probably best to point you to technet on that one.
  6. 6. ORACLE 8i New Features  Content Management for the Internet  Oracle8i interMedia, Spatial, Time Series, and Visual  Java  Data Warehousing and Very Large Data Bases (VLDB
  7. 7.  Database Features  Partitioning Enhancements  System Management  Oracle Parallel Server  Distributed Systems  Networking, Security, and Oracle Advanced Security  Program Interfaces Skip Seen Slides
  8. 8. Oracle8i interMedia, Spatial, Time Series, and Visual Image Retrieval  Integrate all your data into its datastore.  The Oracle8i extensibility framework and object relational technology have been exploited to extend of reliability, availability, and data management capabilities of the database server to multimedia data.  A new multimedia option, Oracle8i interMedia, services text, document, image, audio, video, and locational data in a single integrated package.  The Spatial, Time Series, and Visual Image Retrieval options, available separately, also have been designed to utilize the Oracle8i extensibility architecture.
  9. 9.  Oracle8i interMedia  Oracle8i Spatial BACK
  10. 10. Oracle8i interMedia  Allows multimedia data to be managed in an integral fashion with other enterprise data.  Applications can access interMedia through both object and relational interfaces – Extensible Index – Extensible Query Optimizer – Filters – Hierarchical Query Feedback BACK
  11. 11. Extensible Index and Extensible Query Optimizer  Creating an index is now much simpler because it is created and maintained using standard SQL.  This is made possible through the Oracle8i extensible indexing framework as described in "User-Defined Operators and Extensible Indexing".  The optimizer can be used to select the best plan for executing a CONTAINS query.  It does so by analyzing collected statistics of all the tables and indexes affected by a BACK CONTAINS query.
  12. 12. Filters and Hierarchical Query Feedback  By default during indexing, interMedia Text uses the Inso Corporation filtering technology, which can filter most document formats.  This filtering technology automatically recognizes document formats.  Thus, this filter can be used to index single or mixed column formats. A custom or other filter may also be specified to filter documents during indexing.  Given a query expression, interMedia Text returns related query term information (broader term, narrower term, related term) that can help refine queries. BACK
  13. 13. Oracle8i Spatial  Spatial data is any data with a location component.  Oracle8i Spatial is designed for two groups of users: – It enables traditional database customers to add useful spatial queries to their applications. – It supports geographic information system (GIS) vendors who must store, retrieve, and manage very large spatial databases containing hundreds of gigabytes of geodata.
  14. 14. Oracle8i Time Series  Oracle8i Time Series enables time-stamped data to be stored efficiently in an Oracle database.  It supports a basic set of functions--calendar, time series, and time scaling--to retrieve and process data.  Oracle8i Time Series provides the following kinds of functions: – Calendar functions provide a convenient mechanism for defining time-related operations and ensuring the validity of time-related data. – For example, arbitrary calendars can be defined over a fixed interval, such as a calendar of business days in the week or a calendar of quarterly dividend payment dates.
  15. 15.  Time series functions provide analysis of time series data and include support for complex aggregation (such as moving average), mathematical operations (such as cumulative sum and cell-by-cell arithmetic operations), and data verification.  Time scaling functions allow a time series function to be transformed from one time scale to another, such as from aggregate daily data into quarterly summaries.  Time scaling is flexible because the source and target scales are determined by calendars, which can be customized. BACK
  16. 16. Data Warehousing and Very Large Data Bases (VLDB)  The performance of queries is dramatically increased by materialized views and summary management, which allow frequently requested summaries to be stored and maintained.  Parallelism is improved with more operations offered in parallel.  Moving data from one database to another is made simpler and faster with transportable tablespaces.  A materialized view is a stored summary containing precomputed results.  Transportable Tablespaces – This feature allows a user to move a subset of an Oracle database into another Oracle database BACK
  17. 17. Database Features  With Oracle8i, the Oracle database server provides a new extensibility framework for developers to extend the database to meet their needs.  Many object relational enhancements have been incorporated into this release, and this functionality has been extended to all Oracle8i product configurations.  Online transaction processing (OLTP) systems are usually concerned with entering and retrieving mission-critical data from day-to-day operations.
  18. 18. Database Features  Availability, reliability, and performance are extremely important for these systems.  Oracle8i delivers significant enhancements in these areas, along with improvements in scalability, serviceability, and security.  Advance Queuing has been significantly enhanced, continuing to develop the publish/subscribe messaging paradigm. BACK
  19. 19. Oracle Database 10g “Sophisticated Simplicity” - Sean McCown, InfoWorld
  20. 20. .NET Data Access ASP .NET VB .NET C# Any other .NET Language Oracle Data Provider For .NET Oracle Database Extensions for .NET (VB .NET, C#, C++)
  21. 21. ORACLE 10g  The idea of Oracle 10g is that the database will be able to dynamically "requisition" resources from the grid to meet levels of peak demand.  Other enhancements for Oracle 10g are aimed at reducing costs and improving the quality of service by making the database easier to deploy and manage including enhancements to backup and recovery and data warehousing .
  22. 22. Features of Oracle 10g  As with Oracle 9i, one of the major focuses of Oracle 10g is on reducing costs and increasing up-time by making the database easier to manage.  Other major enhancements in this area include:– Enhancing Enterprise Manager – Availability – Data Warehousing Skip Seen Slides
  23. 23. Enhancing Enterprise Manager  Enhancing Enterprise Manager to be able to:– Manage the whole grid – The complete stack of resources – Simplifying installation and – Configuration by reducing the number of initialization parameters. BACK
  24. 24. Availability  Oracle 10g Real Application Clusters have been enhanced to provide Automatic Service Provisioning.  Servers are automatically allocated to work loads and clients are automatically assigned to the server with the least load.  Also on failure of a server, the surviving servers are automatically reallocated to work loads.
  25. 25. Availability  Other enhancements in this area include: – Flashback available at the row, transaction, table or database level. – Recovery area on disk that is maintained automatically by the database and contains only those blocks changed since the last backup - thereby enabling faster recovery from media failure. – Data guard (standby database) has been enhanced to enable compression and encryption of log traffic from the master database to the standby system; – Tables can now be redefined without invalidating stored procedures. – Support for rolling upgrades of the hardware, operating system and the database to reduce planned down time. BACK
  26. 26. Data Warehousing  Oracle 10g Data Warehousing enhancements include: – An increase in the size limits of the database to support ultra-large databases of millions of terabytes in size and ultra-large files of terabytes in size. – The 4GB restriction on LOBs has been raised to 128 terabytes. – Improvements to Real Application Clusters (RAC) enable resources to be allocated automatically and means that operational data can be used immediately without the need to copy it to another database.
  27. 27. Data Warehousing  Enhancements to OLAP analytic  A data-mining GUI and a new SQL model allow query results to be treated as sets of multidimensional arrays on which complex inter-dependent operations - such as forecasting - can be run without the need to extract data to spreadsheets or perform complex joins and unions on the data.  A new changed data capture facility based on Oracle Streams provides low or zero latency trickle feeds that combined with integrated extraction, transformation and loading (etl) enable real-time warehousing. BACK
  28. 28. Performance Features of Oracle 10g  Active Session History Reports  Automatic PGA Memory Management  Automatic Shared Memory Management  Automatic Tuning of Multiblock Read Count  Automatic Workload Repository Reports  Configurable Automatic Workload Repository SQL Collection  Enhanced End to End Application Tracing
  29. 29. Performance Features of Oracle 10g  Improved System Statistics  SQL Access Advisor  SQL Profiles  SQL Tuning Advisor  SQL Tuning Sets  V$SQLSTATS View
  30. 30. Oracle Database 10g Windows .NET Developer Strategy
  31. 31. Oracle 10g Grid Computing Strategy
  32. 32. Oracle 10g Goals  Highest quality of service – Availability, performance, scalability, security  Half the Cost  Easiest to Manage – 50% or more reduction in administration costs  Most complete, integrated database
  33. 33. Oracle Grid Computing Storage Grid Database Grid  Highest Quality of Service and Flexibility  Half the Cost  Easiest to Manage Application Server Grid Grid Control Grid Computing enable groups of networked computers to be pooled and provisioned on demand to meet the changing needs of the buisness.
  34. 34. Oracle Database 10g Awards  eWeek Analyst Choice Award and Top 10 Product of 2004  I.E. Readers’ Choice Award: Best DBMS for Data Warehousing  CRN recommends 5/5 stars  DM Review 2004 Winner of Readers Award for Database and Data Store  InfoWorld “Database of the Year” 2004

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