Oracle OpenWorld 1999 Template
... Database triggers (INSERT, UPDATE) can provide additional granularity ...
... Database triggers (INSERT, UPDATE) can provide additional granularity ...
How do I Backup Best Practice Software?
... Best Practice Software provides a mechanism to schedule BP backups. This utilises the 'BP Link.exe' utility which allows the flexibility to back your Best Practice data up while the system is unattended. This file can be found on the ‘server only’ in the folder C:\Program Files\Best Practice Softwar ...
... Best Practice Software provides a mechanism to schedule BP backups. This utilises the 'BP Link.exe' utility which allows the flexibility to back your Best Practice data up while the system is unattended. This file can be found on the ‘server only’ in the folder C:\Program Files\Best Practice Softwar ...
On Replication - Informatics Homepages Server
... One master site manages several non-master sites (keep one/partial copy) Updatable Refresh (fast refresh/ complete refresh/ force refresh) Hybrid Replication ...
... One master site manages several non-master sites (keep one/partial copy) Updatable Refresh (fast refresh/ complete refresh/ force refresh) Hybrid Replication ...
DB2 9 Application Development exam 733 prep
... Change data Changing data is a key process to understand when designing a database application. It depends on several factors: • The data model and metadata (What are the catalog data, types, limits, and checks that you must deal with?) • Business requirements (How do you need to identify and modify ...
... Change data Changing data is a key process to understand when designing a database application. It depends on several factors: • The data model and metadata (What are the catalog data, types, limits, and checks that you must deal with?) • Business requirements (How do you need to identify and modify ...
Transaction Management
... COMMIT statement – ends the SQL trans.; effects permanently recorded within DB ROLLBACK statement – DB is rolled back to its previous consistent state and all the changes are aborted Reach end of the program successfully – similar to COMMIT Program abnormally terminated – similar to ROLLBACK ...
... COMMIT statement – ends the SQL trans.; effects permanently recorded within DB ROLLBACK statement – DB is rolled back to its previous consistent state and all the changes are aborted Reach end of the program successfully – similar to COMMIT Program abnormally terminated – similar to ROLLBACK ...
What is a Database System?
... of the DBMS not just for data retrieval operations, but for updating operations as well (e.g. UPDATE) not guaranteed to give the best result ...
... of the DBMS not just for data retrieval operations, but for updating operations as well (e.g. UPDATE) not guaranteed to give the best result ...
6-Query_Intro
... ➡ Difficult to estimate the size of the intermediate resultserror propagation ➡ Can amortize over many executions ➡ R* Dynamic ➡ Run time optimization ➡ Exact information on the intermediate relation sizes ➡ Have to reoptimize for multiple executions ➡ Distributed INGRES Hybrid ➡ Compile using a st ...
... ➡ Difficult to estimate the size of the intermediate resultserror propagation ➡ Can amortize over many executions ➡ R* Dynamic ➡ Run time optimization ➡ Exact information on the intermediate relation sizes ➡ Have to reoptimize for multiple executions ➡ Distributed INGRES Hybrid ➡ Compile using a st ...
chapter 7_ database administration
... Most DBMSs support the creation of views. A view is a program’s or an individual user’s picture of the database. The existing, permanent tables in a relational database are called base tables. A view is a derived table because the data in it comes from one or more base tables. To the user, a view ap ...
... Most DBMSs support the creation of views. A view is a program’s or an individual user’s picture of the database. The existing, permanent tables in a relational database are called base tables. A view is a derived table because the data in it comes from one or more base tables. To the user, a view ap ...
TDWI Checklist Report: Data Requirements for Advanced
... large data extracts from operational systems must be as nonintrusive as possible. ...
... large data extracts from operational systems must be as nonintrusive as possible. ...
Database Design - Normalization and SQL
... 2NF Storage Anomalies • Insertion: Cannot enter the fact that a particular drug has a particular side effect unless it is given to a patient • Deletion: If John White receives some other drug because of the penicillin rash, and a new drug and side effect are entered, we lose the information that pe ...
... 2NF Storage Anomalies • Insertion: Cannot enter the fact that a particular drug has a particular side effect unless it is given to a patient • Deletion: If John White receives some other drug because of the penicillin rash, and a new drug and side effect are entered, we lose the information that pe ...
Database Mirroring: Maximizing Availability Through Automation
... Myth: Cannot use compression in SQL Server 2005 Myth: Must initialize with a full backup ...
... Myth: Cannot use compression in SQL Server 2005 Myth: Must initialize with a full backup ...
Oracle Database 10g: Administration Workshop I
... Dynamic Performance Views Dynamic performance views provide access to ...
... Dynamic Performance Views Dynamic performance views provide access to ...
presentation
... • OBIS is the information component of the Census of Marine Life, an international research program assessing and explaining the diversity, distribution and abundance of marine organisms throughout the world's oceans • OBIS is an international science program to develop an on-line, open-access, glob ...
... • OBIS is the information component of the Census of Marine Life, an international research program assessing and explaining the diversity, distribution and abundance of marine organisms throughout the world's oceans • OBIS is an international science program to develop an on-line, open-access, glob ...
Database Systems: Design, Implementation, and Management
... that the semantic meaning of the transaction truly represents the real-world event. ...
... that the semantic meaning of the transaction truly represents the real-world event. ...
Special Issue on Query Processing in Commercial Database Systems
... However, each product was tailored to its environment, often necessitating different implementations, especially of different execution strategies. The query optimizer for DB2 for MVS, which first appeared in 1983, largely followed that of System R but was totally rewritten to ensure robust error ha ...
... However, each product was tailored to its environment, often necessitating different implementations, especially of different execution strategies. The query optimizer for DB2 for MVS, which first appeared in 1983, largely followed that of System R but was totally rewritten to ensure robust error ha ...
Downloading data
... database and saved into local file(s). Check this option to take info from the local file (you will display the table more quickly, but be aware of need of actualization from time to time). ”Columns” link between Geography file (tab Download data) and database table with geography. Conditions button ...
... database and saved into local file(s). Check this option to take info from the local file (you will display the table more quickly, but be aware of need of actualization from time to time). ”Columns” link between Geography file (tab Download data) and database table with geography. Conditions button ...
Ch#
... and use of information about individuals and forms the basis of most North American and European privacy laws. “Do unto others as you would have them do unto you.” The ethical principle that states that one should imagine oneself in the place of others and think of the self as the object of the deci ...
... and use of information about individuals and forms the basis of most North American and European privacy laws. “Do unto others as you would have them do unto you.” The ethical principle that states that one should imagine oneself in the place of others and think of the self as the object of the deci ...
Joe Celko`s Complete Guide to NoSQL
... both of these models and how they can be used with new technologies. Chapter 2: Columnar Databases. Columnar databases use traditional structured data and often run some version of SQL; the difference is in how they store the data. The traditional row-oriented approach is replaced by putting data in ...
... both of these models and how they can be used with new technologies. Chapter 2: Columnar Databases. Columnar databases use traditional structured data and often run some version of SQL; the difference is in how they store the data. The traditional row-oriented approach is replaced by putting data in ...
A Probe-Based Technique to Optimize Join Queries in Distributed Internet Databases
... the Internet. We then split the BUCKY database (from the BUCKY benchmark; Carey et al, 1997) across the two sites. We implemented a probe-based run-time optimization module for join queries in Java language. The optimizer first issues two probe queries each striving to estimate the cost of either se ...
... the Internet. We then split the BUCKY database (from the BUCKY benchmark; Carey et al, 1997) across the two sites. We implemented a probe-based run-time optimization module for join queries in Java language. The optimizer first issues two probe queries each striving to estimate the cost of either se ...
6. RECOMPILE INVALID OBJECTS
... DBUA confirms the Recovery Option – creating a guaranteed restore point. ...
... DBUA confirms the Recovery Option – creating a guaranteed restore point. ...
XML Today
... relational data as XML and XML data as relational. The main feature is the XMLType data type. This is a predefined object type that can store an XML document. Like any object type, XMLType can be used as the data type of a column in a table or view. The latter usage is important, as it means that an ...
... relational data as XML and XML data as relational. The main feature is the XMLType data type. This is a predefined object type that can store an XML document. Like any object type, XMLType can be used as the data type of a column in a table or view. The latter usage is important, as it means that an ...
DBMS - Department of Higher Education
... and retrieve. This study material provides a new and comprehensive treatment of databases, dealing with the complete syllabuses for both an introductory course and an advanced course on databases. It offers a balanced view of concepts, languages and architectures, with reference to current technolog ...
... and retrieve. This study material provides a new and comprehensive treatment of databases, dealing with the complete syllabuses for both an introductory course and an advanced course on databases. It offers a balanced view of concepts, languages and architectures, with reference to current technolog ...
mod-12
... relation is paired with every block of outer relation. for each block Br of r do begin for each block Bs of s do begin for each tuple tr in Br do begin for each tuple ts in Bs do begin Check if (tr,ts) satisfy the join condition if they do, add tr • ts to the result. ...
... relation is paired with every block of outer relation. for each block Br of r do begin for each block Bs of s do begin for each tuple tr in Br do begin for each tuple ts in Bs do begin Check if (tr,ts) satisfy the join condition if they do, add tr • ts to the result. ...
Database model
A database model is a type of data model that determines the logical structure of a database and fundamentally determines in which manner data can be stored, organized, and manipulated. The most popular example of a database model is the relational model, which uses a table-based format.