ppt - UMass Boston Computer Science
... The program objects come and go as needed Don’t confuse this with language-provided persistence (Java/C#), a less robust mechanism Persistent objects have field-materialized identity It makes sense—Innate object identity depends on memory addresses, a short-lived phenomenon So long-lived objects (co ...
... The program objects come and go as needed Don’t confuse this with language-provided persistence (Java/C#), a less robust mechanism Persistent objects have field-materialized identity It makes sense—Innate object identity depends on memory addresses, a short-lived phenomenon So long-lived objects (co ...
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Hea-3_4_Final[1]
... location of the data and any parameters that are used by each Archival Unit. The most obvious advantage of automatically generating the title database is that it avoids the tedious and errorprone process of maintaining XML by hand. However, another more subtle advantage is that it more easily suppor ...
... location of the data and any parameters that are used by each Archival Unit. The most obvious advantage of automatically generating the title database is that it avoids the tedious and errorprone process of maintaining XML by hand. However, another more subtle advantage is that it more easily suppor ...
Finding Time: SAS® and Data Warehouse Solutions for Determining Last Day of the Month
... This paper presents the different ways a SAS programmer can automate the extraction of time series data from the warehouse where data are stored, by the last day of each month, in the column monthend date (ME_DT). The goal is to run programs and create data sets for each month with minimal program c ...
... This paper presents the different ways a SAS programmer can automate the extraction of time series data from the warehouse where data are stored, by the last day of each month, in the column monthend date (ME_DT). The goal is to run programs and create data sets for each month with minimal program c ...
Life Under your Feet: A Wireless Soil Ecology Sensor Network
... timestamp of the loading, and its own unique loadVersion value, and some metadata information about what procedures were used, and what errors were seen. This LoadVersion value is also saved with every entry in the Measurement table and the version of the calibration software is recorded in each Cal ...
... timestamp of the loading, and its own unique loadVersion value, and some metadata information about what procedures were used, and what errors were seen. This LoadVersion value is also saved with every entry in the Measurement table and the version of the calibration software is recorded in each Cal ...
Course Title> - dbmanagement.info
... • Specifies the ODBC or native data source name • Allows multiple users to share a pool of data source connections Connection pool name ...
... • Specifies the ODBC or native data source name • Allows multiple users to share a pool of data source connections Connection pool name ...
Distributed Databases
... 2. Data independence Means that the actual organization of data is transparent to the application program, having conceptual view of data called conceptual schema. These programs are unaffected by changes in the physical organization of data. In distributed database , data independence has the same ...
... 2. Data independence Means that the actual organization of data is transparent to the application program, having conceptual view of data called conceptual schema. These programs are unaffected by changes in the physical organization of data. In distributed database , data independence has the same ...
Introduction - CSE, IIT Bombay
... from customer where customer.customer_id = ‘192837465’ Example: Find the balances of all accounts held by the customer with customerid 192837465 select account.balance from depositor, account where depositor.customer_id = ‘192837465’ and depositor.account_number = account.account_numb ...
... from customer where customer.customer_id = ‘192837465’ Example: Find the balances of all accounts held by the customer with customerid 192837465 select account.balance from depositor, account where depositor.customer_id = ‘192837465’ and depositor.account_number = account.account_numb ...
Ch no 03 Relational Database Model
... For Example: Consider the STUDENT relation; STUDENT (class-no, name, address, class) “We have student file of Computer Science Department that contain information about Previous and Final students”. In this case class-no can’t uniquely identify a student because there may be duplication of student ...
... For Example: Consider the STUDENT relation; STUDENT (class-no, name, address, class) “We have student file of Computer Science Department that contain information about Previous and Final students”. In this case class-no can’t uniquely identify a student because there may be duplication of student ...
Visual Basic .Net - Nassau Community College
... .Net security must allow access to the J: drive or the local intra net in order to work properly Problems arise when debugging apps on an ASP .Net server that is not part of the current domain (CLC) Basic apps will still work fine These problems are not present if IIS and remote debugging tools are ...
... .Net security must allow access to the J: drive or the local intra net in order to work properly Problems arise when debugging apps on an ASP .Net server that is not part of the current domain (CLC) Basic apps will still work fine These problems are not present if IIS and remote debugging tools are ...
A Relational Database Primer for SAS Programmers
... in a third generation language, that can create ASCII copies of database tables that the SAS System can subsequently read. The analogous method for moving SAS data into a DBMS involves creating ASCII copies of SAS datasets that a 3Gl program can read and create or append to database tables. This is ...
... in a third generation language, that can create ASCII copies of database tables that the SAS System can subsequently read. The analogous method for moving SAS data into a DBMS involves creating ASCII copies of SAS datasets that a 3Gl program can read and create or append to database tables. This is ...
Chapter 4: Advanced SQL
... However, we can convert type as below (cast r.A as Pounds) (Should also multiply by the dollar-to-pound conversion-rate) ...
... However, we can convert type as below (cast r.A as Pounds) (Should also multiply by the dollar-to-pound conversion-rate) ...
Object-relational complex structures for XML storage
... XML data can be stored in various database repositories, including Object-Relational Database (ORDB). Using an ORDB, we get the benefit of the relational maturity and the richness of Object-Oriented modeling, including various complex data types. These data types resemble the true nature of XML data ...
... XML data can be stored in various database repositories, including Object-Relational Database (ORDB). Using an ORDB, we get the benefit of the relational maturity and the richness of Object-Oriented modeling, including various complex data types. These data types resemble the true nature of XML data ...
Data warehousing & Data mining
... 10% in the last year, the data related to such products can be collected by executing an SQL query. Data discrimination is a comparison of the general features of target class data objects with the general features of objects from one or a set of contrasting classes. The target and contrasting class ...
... 10% in the last year, the data related to such products can be collected by executing an SQL query. Data discrimination is a comparison of the general features of target class data objects with the general features of objects from one or a set of contrasting classes. The target and contrasting class ...
Effort Estimation Based on Complexity and Size of
... software plays an important role among many other product properties like complexity, cohesion and coupling etc. as cost factors [5]. Here the emphasis can be given on the role of complexity in determining the effort of database development. Again, as software grew in size, it becomes very much nece ...
... software plays an important role among many other product properties like complexity, cohesion and coupling etc. as cost factors [5]. Here the emphasis can be given on the role of complexity in determining the effort of database development. Again, as software grew in size, it becomes very much nece ...
Decision support, OLAP
... • Suppose there are only 4 different locations in our previous example. • Then we may represent the locations of N fact table tuples using only 2N bits. • However, an (unclustered) index on location seems to require at least N log N bits. • Can we get by reading less data? ...
... • Suppose there are only 4 different locations in our previous example. • Then we may represent the locations of N fact table tuples using only 2N bits. • However, an (unclustered) index on location seems to require at least N log N bits. • Can we get by reading less data? ...
About the Presentations
... • Data access language: provide a language that allows database access • Data integrity: enable constraints or checks on data • Data dictionary: maintain information about database structure Oracle 11g: SQL ...
... • Data access language: provide a language that allows database access • Data integrity: enable constraints or checks on data • Data dictionary: maintain information about database structure Oracle 11g: SQL ...
Object - ShareStudies.com
... One of the most critical tasks that applications have to perform is to save and restore data Persistence is the storage of data from working memory so that it can be restored when the application is run again In object-oriented systems, there are several ways in which objects can be made persi ...
... One of the most critical tasks that applications have to perform is to save and restore data Persistence is the storage of data from working memory so that it can be restored when the application is run again In object-oriented systems, there are several ways in which objects can be made persi ...
DATABASE AS A SERVICE?
... Before the Era of Big Data, most data was generated by internal business applications such as ERP and CRM systems. This data was relatively predictable in terms of format and could therefore be stored efficiently in a relational data model using a consistent set of pre-defined fields such as customer na ...
... Before the Era of Big Data, most data was generated by internal business applications such as ERP and CRM systems. This data was relatively predictable in terms of format and could therefore be stored efficiently in a relational data model using a consistent set of pre-defined fields such as customer na ...
OpenACS: robust web development framework
... pooling and a cron-like service for running scheduled code in the background. For more about AOLserver, please see the AOLserver home page (http://www.aolserver.com). 2.2. Templating system OpenACS divides responsibility for serving most requests among two or three file types having distinct purpose ...
... pooling and a cron-like service for running scheduled code in the background. For more about AOLserver, please see the AOLserver home page (http://www.aolserver.com). 2.2. Templating system OpenACS divides responsibility for serving most requests among two or three file types having distinct purpose ...
Course Review
... Intelligent Keys : have a meaning. Longitude and Latitude of an object (say a building) uniquely identifies a building and also nominates where it is. Super Key : This is normally a key with too many attributes in it. Some of the columns could be removed and a key would still exist. A good example i ...
... Intelligent Keys : have a meaning. Longitude and Latitude of an object (say a building) uniquely identifies a building and also nominates where it is. Super Key : This is normally a key with too many attributes in it. Some of the columns could be removed and a key would still exist. A good example i ...
Accounting Information Systems 9th Edition
... The conceptual-level schema is an organization-wide view of the entire database. The external-level schema consists of a set of individual user views of portions of the database, also referred to as a subschema. The internal-level schema provides a low-level view of the database. ...
... The conceptual-level schema is an organization-wide view of the entire database. The external-level schema consists of a set of individual user views of portions of the database, also referred to as a subschema. The internal-level schema provides a low-level view of the database. ...