FAQ: How CDC refresh works
... Q: How does CDC obtain a transactionally complete 'snapshot' for tables that have active changes being performed on them? A: Oracle specific : CDC will use a method which opens a transactional read-only snapshot query on the REFRESH operations table which will cause the undo space in the source data ...
... Q: How does CDC obtain a transactionally complete 'snapshot' for tables that have active changes being performed on them? A: Oracle specific : CDC will use a method which opens a transactional read-only snapshot query on the REFRESH operations table which will cause the undo space in the source data ...
Slide 1
... Oracle Discoverer is intended to provide end users easy access to data and allow them to do data analysis. Oracle Discoverer provides business users with data analysis capabilities, regardless of whether the RDBMS was designed for an OLTP system or as a data warehouse. Discoverer is an ad hoc ...
... Oracle Discoverer is intended to provide end users easy access to data and allow them to do data analysis. Oracle Discoverer provides business users with data analysis capabilities, regardless of whether the RDBMS was designed for an OLTP system or as a data warehouse. Discoverer is an ad hoc ...
SQL Server Stored Procedures
... Unified cache stores data and procedure pages Lazywriter does know the difference ...
... Unified cache stores data and procedure pages Lazywriter does know the difference ...
TRIGGER trigger_name
... executes (fires) a database trigger automatically when a given SQL operation (like INSERT, UPDATE or DELETE) affects the table. Unlike a procedure, or a function, which must be invoked explicitly, database triggers are invoked implicitly. ...
... executes (fires) a database trigger automatically when a given SQL operation (like INSERT, UPDATE or DELETE) affects the table. Unlike a procedure, or a function, which must be invoked explicitly, database triggers are invoked implicitly. ...
Putting OPC to Work: OSIsoft`s OPC Architecture
... ODBC Successes • Abstracted access to relational databases • Allowed database vendors to leverage their existing programming & network APIs • Enable client application vendors to broaden the databases they support ...
... ODBC Successes • Abstracted access to relational databases • Allowed database vendors to leverage their existing programming & network APIs • Enable client application vendors to broaden the databases they support ...
Strategies for Migrating Oracle Databases to AWS
... — Oracle Recovery Manager (RMAN) is a tool available from Oracle for performing and managing Oracle Database backups and restorations. RMAN allows full hot or cold backups plus incremental backups. RMAN maintains a catalogue of the backups, making the restoration process simple and dependable. RMAN ...
... — Oracle Recovery Manager (RMAN) is a tool available from Oracle for performing and managing Oracle Database backups and restorations. RMAN allows full hot or cold backups plus incremental backups. RMAN maintains a catalogue of the backups, making the restoration process simple and dependable. RMAN ...
Accelerate EDB Postgres Advanced Server
... Guide for HPE ProLiant Gen9 servers. See Appendix B for the configuration used for this testing. • Use HPE Persistent Memory Manager for Linux 64-bit to evaluate and monitor your HPE 8GB NVDIMM configuration and related components. Use HPE Persistent Memory Manager User Guide to learn more. • Balanc ...
... Guide for HPE ProLiant Gen9 servers. See Appendix B for the configuration used for this testing. • Use HPE Persistent Memory Manager for Linux 64-bit to evaluate and monitor your HPE 8GB NVDIMM configuration and related components. Use HPE Persistent Memory Manager User Guide to learn more. • Balanc ...
Database Application Schema Forensics
... database for about four decades [3]. The ANSI/SPARC intentional/extensional model of databases divides the database into four layers. Each layer contains some data relevant to that layer; this forms the intentional part of the layer. Each layer (apart from the bottom layer) also contains information ...
... database for about four decades [3]. The ANSI/SPARC intentional/extensional model of databases divides the database into four layers. Each layer contains some data relevant to that layer; this forms the intentional part of the layer. Each layer (apart from the bottom layer) also contains information ...
(A) R
... If holds, then holds and holds (decomposition)分解率 If holds and holds, then holds (pseudotransitivity)伪传递率 The above rules can be inferred from Armstrong’s axioms. ...
... If holds, then holds and holds (decomposition)分解率 If holds and holds, then holds (pseudotransitivity)伪传递率 The above rules can be inferred from Armstrong’s axioms. ...
Best Practices for Data Definitions - Cont`d
... – Read and understand how indexes are implemented in practice ...
... – Read and understand how indexes are implemented in practice ...
Earp: Principled Storage, Sharing, and Protection for Mobile Apps
... photo collection where an individual photo can be accessed directly via the camera roll interface, or via any album that includes this photo. As soon as the user wants to share an album with another app, the per-object permissions must be changed for every single photo in the album. Since other type ...
... photo collection where an individual photo can be accessed directly via the camera roll interface, or via any album that includes this photo. As soon as the user wants to share an album with another app, the per-object permissions must be changed for every single photo in the album. Since other type ...
WhoHasWhattoWhich_ThePermissionsSuperset
... Impersonated by sysadmin when sysadmin is in the database If no valid owner, you may receive error that the user cannot perform the requested action under the current security context ...
... Impersonated by sysadmin when sysadmin is in the database If no valid owner, you may receive error that the user cannot perform the requested action under the current security context ...
SEER Database Administrator`s Guide
... The software design of SEER applications allows an instance of SEER Database to be hosted by any ANSI-SQLcompliant relational database management system (RDBMS), which has an ODBC driver available for the target operating system. The current release of SEER applications has been tested for use with ...
... The software design of SEER applications allows an instance of SEER Database to be hosted by any ANSI-SQLcompliant relational database management system (RDBMS), which has an ODBC driver available for the target operating system. The current release of SEER applications has been tested for use with ...
Week 1, Lecture 1
... as a handout for the Database B&R class at Regis University One student remarked “you could turn this into a book...” Author sent the document to Apress, the editor remarked “what you have here is a cookbook or recipe format type book...” ...
... as a handout for the Database B&R class at Regis University One student remarked “you could turn this into a book...” Author sent the document to Apress, the editor remarked “what you have here is a cookbook or recipe format type book...” ...
Advanced Database Techniques 2010
... • Query benchmark suite aimed at performance of – Selec7on with different selec7vity values – Projec7on with different percentage of duplicates – Single and mul7ple joins – Simple aggregates and aggregate func7ons ...
... • Query benchmark suite aimed at performance of – Selec7on with different selec7vity values – Projec7on with different percentage of duplicates – Single and mul7ple joins – Simple aggregates and aggregate func7ons ...
WLCG2008CERN
... more monitoring into the database – which means more summary and raw data stored. We’ll also do the analytic summarization in PL/SQL, so you should expect and increase in CPU use as we start to do this. It’s kinda hard to quantify though… ...
... more monitoring into the database – which means more summary and raw data stored. We’ll also do the analytic summarization in PL/SQL, so you should expect and increase in CPU use as we start to do this. It’s kinda hard to quantify though… ...
The overall DR strategy of xyz is summarized in
... Users (end users, power users, administrators) are unable to access the system through any part of the instance (e.g. client or server side, web interface or downloaded application). Infrastructure and back-end services are still assumed to be active/running. The collection, logging, filtering, and ...
... Users (end users, power users, administrators) are unable to access the system through any part of the instance (e.g. client or server side, web interface or downloaded application). Infrastructure and back-end services are still assumed to be active/running. The collection, logging, filtering, and ...
Step into the Cloud: Ways to Connect to Amazon Redshift with SAS/ACCESS®
... In Case 1, the zipcode table that exists in Amazon Redshift contains 20 columns. The original table data comes from the zipcode data set in a SASHELP library in SAS that stores 10,000 rows. The READBUFF= option is set to 2000 to enable a large read buffer. This is just an example and does not mean t ...
... In Case 1, the zipcode table that exists in Amazon Redshift contains 20 columns. The original table data comes from the zipcode data set in a SASHELP library in SAS that stores 10,000 rows. The READBUFF= option is set to 2000 to enable a large read buffer. This is just an example and does not mean t ...
CSIT- 530 www.cs.ust.hk/~dimitris/CSIT530/530.html
... Need to write a new program to carry out each new task Integrity problems Integrity constraints (e.g. account balance > 0) become part of program code Hard to add new constraints or change existing ones ...
... Need to write a new program to carry out each new task Integrity problems Integrity constraints (e.g. account balance > 0) become part of program code Hard to add new constraints or change existing ones ...
learning ontology from relational database
... which is different from ours. Moreover, the semantic characteristics of the database schema are not always analyzed. The method in [7] is proposed to automate the process of filling the instances and their attributes’ values of an ontology using the data extracted from external relational sources. T ...
... which is different from ours. Moreover, the semantic characteristics of the database schema are not always analyzed. The method in [7] is proposed to automate the process of filling the instances and their attributes’ values of an ontology using the data extracted from external relational sources. T ...
Microsoft Jet Database Engine
The Microsoft Jet Database Engine is a database engine on which several Microsoft products have been built. A database engine is the underlying component of a database, a collection of information stored on a computer in a systematic way. The first version of Jet was developed in 1992, consisting of three modules which could be used to manipulate a database.Database connect for MicrosoftJET stands for Joint Engine Technology, sometimes being referred to as Microsoft JET Engine or simply Jet. Microsoft Access and Visual Basic use or have used Jet as their underlying database engine. It has since been superseded for general use, however, first by Microsoft Desktop Engine (MSDE), then later by SQL Server Express. For larger database needs, Jet databases can be upgraded (or, in Microsoft parlance, ""up-sized"") to Microsoft's flagship database product, SQL Server.However, this does not mean that a MS Jet (Red) database cannot match MS SQL Server in storage capacity. A 5 billion record MS Jet (Red) database with compression and encryption turned on requires about 1 terabyte of disk storage space, comprising hundreds of (*.mdb) files, each acting as partial table, and not as a database in itself.Over the years, Jet has become almost synonymous with Microsoft Access, to the extent that many people refer to a Jet database as an ""Access database"".