ppt
... • Example: web site browsing behavior – Web User dimension (= Customer dimension) – Unregistered users • User identity tracked over time via cookies • Limited information available – First active date, Latest active date, Behavioral attributes – Possibly ZIP code through IP lookup ...
... • Example: web site browsing behavior – Web User dimension (= Customer dimension) – Unregistered users • User identity tracked over time via cookies • Limited information available – First active date, Latest active date, Behavioral attributes – Possibly ZIP code through IP lookup ...
slides
... Chapter 6 Foundations of Business Intelligence: Databases and Information Management Using Databases to Improve Business Performance and Decision Making ...
... Chapter 6 Foundations of Business Intelligence: Databases and Information Management Using Databases to Improve Business Performance and Decision Making ...
IST722 Data Warehousing
... • Start drilling down into the detailed source to target flow for each target dimension and fact table • Flowcharts and pseudo code are useful for building out your transformation logic. • ETL Tools allow you to build and document the data flow at the same time: ...
... • Start drilling down into the detailed source to target flow for each target dimension and fact table • Flowcharts and pseudo code are useful for building out your transformation logic. • ETL Tools allow you to build and document the data flow at the same time: ...
Hibernate Vs JDBC - Mindfire Solutions
... Working with both Object-Oriented software and Relational Database is complicated task with JDBC because there is mismatch between how data is represented in objects versus relational database. So with JDBC, developer has to write code to map an object model's data representation to a relational dat ...
... Working with both Object-Oriented software and Relational Database is complicated task with JDBC because there is mismatch between how data is represented in objects versus relational database. So with JDBC, developer has to write code to map an object model's data representation to a relational dat ...
- Courses - University of California, Berkeley
... – Nullify -- reset the foreign keys in the child to some NULL or dummy value – Cascade -- Delete all rows in the child where there is a foreign key matching the key in the parent row being deleted ...
... – Nullify -- reset the foreign keys in the child to some NULL or dummy value – Cascade -- Delete all rows in the child where there is a foreign key matching the key in the parent row being deleted ...
Server Studio JE - Washington Area Informix User Group
... Schema Management Object Explorer in the Server Studio™ JE enables easy navigation and analysis of the database schema and detail examination of any database object’s properties. Server Studio™ JE provides a rich collection of graphical editors (e.g. Table Editor, SQL Editor, Permissions Manager ...
... Schema Management Object Explorer in the Server Studio™ JE enables easy navigation and analysis of the database schema and detail examination of any database object’s properties. Server Studio™ JE provides a rich collection of graphical editors (e.g. Table Editor, SQL Editor, Permissions Manager ...
Field Encryption Presentation - Raz-Lee
... • Part of Raz-Lee’s iSecurity suite, using the same standards, same auditing capabilities, same superior technology and same support ...
... • Part of Raz-Lee’s iSecurity suite, using the same standards, same auditing capabilities, same superior technology and same support ...
Installation Checklist System Verify free disk space, note data
... these updates, including restarting the computer. This is generally not desired in an industrial setting, so it is recommended that Automatic Updates be turned off, or at least set to require user input before installation. This also provides the user the opportunity to verify that the updates do no ...
... these updates, including restarting the computer. This is generally not desired in an industrial setting, so it is recommended that Automatic Updates be turned off, or at least set to require user input before installation. This also provides the user the opportunity to verify that the updates do no ...
Document
... • Expect some operations need to be retried (e.g. due to transient faults, throttling, etc.) Avoid long-running queries / split operations into smaller chunks Make your operations easily restartable ...
... • Expect some operations need to be retried (e.g. due to transient faults, throttling, etc.) Avoid long-running queries / split operations into smaller chunks Make your operations easily restartable ...
Spatial databases
... Several DT249 students have found new career opportunities as a direct result of completing a spatial database project. ...
... Several DT249 students have found new career opportunities as a direct result of completing a spatial database project. ...
Corporate PPT Template
... view the contents of a table as it existed at some point in the recent past(UNDO_RETENTION). The feature allows the DBA to see the value of a column as of a specific time, as long as the before-image copy of the block is available in the undo segment ...
... view the contents of a table as it existed at some point in the recent past(UNDO_RETENTION). The feature allows the DBA to see the value of a column as of a specific time, as long as the before-image copy of the block is available in the undo segment ...
What is MySQL?
... • Create an ODBC Connection With an ODBC connection, you can connect to any database, on any computer in your network, as long as an ODBC connection is available. Here is how to create an ODBC connection to a MS Access Database: 1. Open the Administrative Tools icon in your Control Panel. 2. Double- ...
... • Create an ODBC Connection With an ODBC connection, you can connect to any database, on any computer in your network, as long as an ODBC connection is available. Here is how to create an ODBC connection to a MS Access Database: 1. Open the Administrative Tools icon in your Control Panel. 2. Double- ...
Corporate PPT Template - Universidad Nacional De Colombia
... view the contents of a table as it existed at some point in the recent past(UNDO_RETENTION). The feature allows the DBA to see the value of a column as of a specific time, as long as the before-image copy of the block is available in the undo segment ...
... view the contents of a table as it existed at some point in the recent past(UNDO_RETENTION). The feature allows the DBA to see the value of a column as of a specific time, as long as the before-image copy of the block is available in the undo segment ...
New Era of Object-Relational Approaches As mentioned in the
... relationships, both static and dynamic. This also includes the fact that the relational model has a lack of semantic features and an inability to represent complex structures and operations (Kim, 1995). The object-oriented data model has significant benefits in the areas of semantic data modeling. T ...
... relationships, both static and dynamic. This also includes the fact that the relational model has a lack of semantic features and an inability to represent complex structures and operations (Kim, 1995). The object-oriented data model has significant benefits in the areas of semantic data modeling. T ...
Slide 1
... 4. In order to get the data at the node to be accessed, the user frames a query Qi where i indicates the level in which the node occurs. ...
... 4. In order to get the data at the node to be accessed, the user frames a query Qi where i indicates the level in which the node occurs. ...
What is a Data Warehouse?
... distributive: if the result derived by applying the function to n aggregate values is the same as that derived by applying the function on all the data without partitioning. E.g., count(), sum(), min(), max(). ...
... distributive: if the result derived by applying the function to n aggregate values is the same as that derived by applying the function on all the data without partitioning. E.g., count(), sum(), min(), max(). ...
Three Data Warehouse Models
... Fact table contains measures (such as dollars_sold) and keys to each of the related dimension tables ...
... Fact table contains measures (such as dollars_sold) and keys to each of the related dimension tables ...
TPM
... – Collection of logically related shared data – Data split into fragments – Fragments may be replicated – Fragments/replicas allocated to sites – Sites linked by communications network – Data at each site controlled by DBMS – DMBS handles local apps autonomously – Each DBMS in one or more global app ...
... – Collection of logically related shared data – Data split into fragments – Fragments may be replicated – Fragments/replicas allocated to sites – Sites linked by communications network – Data at each site controlled by DBMS – DMBS handles local apps autonomously – Each DBMS in one or more global app ...
Ch1 - Crystal
... Many relational DBMSs have incorporated object database concepts, leading to a new category called object-relational databases (ORDBs) (see Ch. 11) Extended relational systems add further capabilities (e.g. for multimedia data, XML, spatial, and other data types) ...
... Many relational DBMSs have incorporated object database concepts, leading to a new category called object-relational databases (ORDBs) (see Ch. 11) Extended relational systems add further capabilities (e.g. for multimedia data, XML, spatial, and other data types) ...
Document
... Relational database: collection of tables (also called relations) Database Management System (DBMS): a software that is used to create, access and maintain a database; e.g., mysql, sqlite, oracle, sql server. Table: Collection of rows (also called tuples or records). Each row in a table contains a s ...
... Relational database: collection of tables (also called relations) Database Management System (DBMS): a software that is used to create, access and maintain a database; e.g., mysql, sqlite, oracle, sql server. Table: Collection of rows (also called tuples or records). Each row in a table contains a s ...
Operational Scenarios Using the Microsoft Data
... Operational data, such as transactional data used by a banking system, an online retailer, or an ERP application. This data is typically both read and written by applications, commonly in response to user requests. A banking application might read your account balance, for instance, then write a new ...
... Operational data, such as transactional data used by a banking system, an online retailer, or an ERP application. This data is typically both read and written by applications, commonly in response to user requests. A banking application might read your account balance, for instance, then write a new ...
CPS352 Lecture - SQL last revised January 17, 2017 Objectives: 1
... draft of SQL2008 for which one part (alone) has over 1000 pages! 6. As it turns out, database software from different vendors typically supports slightly different dialects of SQL. 7. Actually, although SQL is based on the relational data model, vendors of database systems based on other models have ...
... draft of SQL2008 for which one part (alone) has over 1000 pages! 6. As it turns out, database software from different vendors typically supports slightly different dialects of SQL. 7. Actually, although SQL is based on the relational data model, vendors of database systems based on other models have ...
parallel
... Shared-disk too, but less standard Shared-mem easy, costly. Doesn’t scaleup. Shared-nothing cheap, scales well, harder to implement. ...
... Shared-disk too, but less standard Shared-mem easy, costly. Doesn’t scaleup. Shared-nothing cheap, scales well, harder to implement. ...
Relational model
The relational model for database management is an approach to managing data using a structure and language consistent with first-order predicate logic, first described in 1969 by Edgar F. Codd. In the relational model of a database, all data is represented in terms of tuples, grouped into relations. A database organized in terms of the relational model is a relational database.The purpose of the relational model is to provide a declarative method for specifying data and queries: users directly state what information the database contains and what information they want from it, and let the database management system software take care of describing data structures for storing the data and retrieval procedures for answering queries.Most relational databases use the SQL data definition and query language; these systems implement what can be regarded as an engineering approximation to the relational model. A table in an SQL database schema corresponds to a predicate variable; the contents of a table to a relation; key constraints, other constraints, and SQL queries correspond to predicates. However, SQL databases deviate from the relational model in many details, and Codd fiercely argued against deviations that compromise the original principles.