The interface development for machine shop simulation
... introduces a data transfer mechanism between the machine shop database and XML document, and discusses data translators and data import/export. Keywords: modeling; interface; simulation. Biographical notes: Yan Luo is a contractor at NIST. His research interests include CAD/CAM, IT, software and man ...
... introduces a data transfer mechanism between the machine shop database and XML document, and discusses data translators and data import/export. Keywords: modeling; interface; simulation. Biographical notes: Yan Luo is a contractor at NIST. His research interests include CAD/CAM, IT, software and man ...
Principles of Good Database Design
... staff members and are required to build systems for non-OR users. They must know how to package OR/business models so that they can be comfortably used by top managers and other co-workers. Real-life decision making often requires building interactive systems, which students must know how to design ...
... staff members and are required to build systems for non-OR users. They must know how to package OR/business models so that they can be comfortably used by top managers and other co-workers. Real-life decision making often requires building interactive systems, which students must know how to design ...
With Oracle Database 12c, there is all the more reason to use
... version of the database module to another version. The most interesting example of such a SQL statement, for the present discussion, is the create or replace DML statement for a PL/SQL unit, because typically, during a development cycle, procedural code is changed far more frequently than is the def ...
... version of the database module to another version. The most interesting example of such a SQL statement, for the present discussion, is the create or replace DML statement for a PL/SQL unit, because typically, during a development cycle, procedural code is changed far more frequently than is the def ...
Bradley
... Project needs to be closed in the IDE. Copy the complete folder from one computer or location to another. For Web projects, copy the solution folder to the desired location, using Windows Explorer. ...
... Project needs to be closed in the IDE. Copy the complete folder from one computer or location to another. For Web projects, copy the solution folder to the desired location, using Windows Explorer. ...
download
... useful part of a database definition, as you can avoid repeating the same range check on several fields, and you can make the definition more readable at the same time. As a simple example, if you have multiple tables with an address field, you can define a type for this field and then use this type ...
... useful part of a database definition, as you can avoid repeating the same range check on several fields, and you can make the definition more readable at the same time. As a simple example, if you have multiple tables with an address field, you can define a type for this field and then use this type ...
![A data base management system[a]allows simultaneous access to](http://s1.studyres.com/store/data/000574680_1-580d3ae4ac20bab04734db8a0b204060-300x300.png)
A data base management system[a]allows simultaneous access to
... ____________________ Database handles full text data, images, ...
... ____________________ Database handles full text data, images, ...
Optimize Oracle on VMware
... Nothing New Here … • DBA’s have always cared deeply about database server CPU, memory, disk and network utilization • But often in the past databases were on dedicated hardware – so databases were more “solo islands” • Now we must account for shared everything – and not just disk space as with SAN/ ...
... Nothing New Here … • DBA’s have always cared deeply about database server CPU, memory, disk and network utilization • But often in the past databases were on dedicated hardware – so databases were more “solo islands” • Now we must account for shared everything – and not just disk space as with SAN/ ...
Introduction to XML
... » Store values of subelements/attributes to be indexed, such as customer-name and account-number as extra fields of the relation, and build indices » Oracle 9 supports function indices which use the result of a function as the key value. Here, the function should return the value of the required sub ...
... » Store values of subelements/attributes to be indexed, such as customer-name and account-number as extra fields of the relation, and build indices » Oracle 9 supports function indices which use the result of a function as the key value. Here, the function should return the value of the required sub ...
Slide 1
... Nothing New Here … • DBA’s have always cared deeply about database server CPU, memory, disk and network utilization • But often in the past databases were on dedicated hardware – so databases were more “solo islands” • Now we must account for shared everything – and not just disk space as with SAN/ ...
... Nothing New Here … • DBA’s have always cared deeply about database server CPU, memory, disk and network utilization • But often in the past databases were on dedicated hardware – so databases were more “solo islands” • Now we must account for shared everything – and not just disk space as with SAN/ ...
Slide 2
... quantitative data in an OLAP database. For example, values such as sales, budget, cost, and so on, are all examples of measures. Measure values are organized in data cubes according to dimensions ...
... quantitative data in an OLAP database. For example, values such as sales, budget, cost, and so on, are all examples of measures. Measure values are organized in data cubes according to dimensions ...
Curated Databases - School of Engineering
... the “authors” of databases such as UniProt and OMIM [58] are known primarily for providing comprehensive reference works. Given their importance, good tools to support the creation, maintenance, and evolution of curated databases are required. In this respect, curated databases have some characteris ...
... the “authors” of databases such as UniProt and OMIM [58] are known primarily for providing comprehensive reference works. Given their importance, good tools to support the creation, maintenance, and evolution of curated databases are required. In this respect, curated databases have some characteris ...
Chapter 17: Parallel Databases
... independently on its own partition. • Queries are expressed in high level language (SQL, translated to relational algebra) – makes parallelization easier. ...
... independently on its own partition. • Queries are expressed in high level language (SQL, translated to relational algebra) – makes parallelization easier. ...
Critical Link!
... - Traditional distributed database is Unsuitable for largescale networks because the design has traditionally assumed well-maintained global meta data distribution and network topology ...
... - Traditional distributed database is Unsuitable for largescale networks because the design has traditionally assumed well-maintained global meta data distribution and network topology ...
Messenger Project
... – Messages can always be stored locally and messages can be saved after a session. ...
... – Messages can always be stored locally and messages can be saved after a session. ...
SQL Performance Tuning
... if inserting then v_var1 := :new.table_field; elsif updating then v_var1 := :new.table_field; v_var2 := :old.table_field; elsif deleting then v_va2 := :old.table_field; end if; end; ...
... if inserting then v_var1 := :new.table_field; elsif updating then v_var1 := :new.table_field; v_var2 := :old.table_field; elsif deleting then v_va2 := :old.table_field; end if; end; ...
Processing Semi-Structured Data in Object Bases
... information. In particular, [LiSu90a, LiSu90b, Sadr91, VrLi91, VrLi93, WoLe90] propose various extensions of the relational algebra, [CaPi87, Fuhr90, BGP90, BGP92] propose specialized probabilistic DBMSs, [DrCh89, LeLo91,RKS89, RKS91, Yazi90] discuss nested relational algebras dealing with null valu ...
... information. In particular, [LiSu90a, LiSu90b, Sadr91, VrLi91, VrLi93, WoLe90] propose various extensions of the relational algebra, [CaPi87, Fuhr90, BGP90, BGP92] propose specialized probabilistic DBMSs, [DrCh89, LeLo91,RKS89, RKS91, Yazi90] discuss nested relational algebras dealing with null valu ...
semlin (xxx)
... PR field of record type ORDER refer a definite PRODUCT record Implicit constraints: to create or modify an ORDER, the referred PRODUCT should be first checked ...
... PR field of record type ORDER refer a definite PRODUCT record Implicit constraints: to create or modify an ORDER, the referred PRODUCT should be first checked ...
Provenance Management in Databases Under Schema
... database is stored as relational databases, and thus suitable for any commercial RDBMS. The AM&PM consists of two main components: the provenance database manager and the query parser. Provenance database is a combined database of schema evolution tables and data provenance tables. Schema evolution ...
... database is stored as relational databases, and thus suitable for any commercial RDBMS. The AM&PM consists of two main components: the provenance database manager and the query parser. Provenance database is a combined database of schema evolution tables and data provenance tables. Schema evolution ...
Fault-Based Testing of Database Application Programs with
... environment such as the operating system and the databases is an important issue. In particular, little research on unit testing techniques focuses on the interaction between an application and the databases [15]. We propose a faultbased testing technique in this paper. Typical database application ...
... environment such as the operating system and the databases is an important issue. In particular, little research on unit testing techniques focuses on the interaction between an application and the databases [15]. We propose a faultbased testing technique in this paper. Typical database application ...
Best Practices for Backup of Microsoft SQL 2000
... File based backups are essential to backup/restore of Microsoft SQL 2000 Server. The data and log files associated with the databases should be excluded from the file level backup unless the Microsoft SQL Server 2000 Service is stopped prior to the backup being taken. Application specific backup for ...
... File based backups are essential to backup/restore of Microsoft SQL 2000 Server. The data and log files associated with the databases should be excluded from the file level backup unless the Microsoft SQL Server 2000 Service is stopped prior to the backup being taken. Application specific backup for ...
Global Cloud Database Security Software Market - By End User... Vendors and Geography Market Shares, Forecasts and Trends (2015 -...
... services are abundant. Enabling organizations to reduce cost without losing business agility and achieve economies of scale. However, information is knowledge especially for business and moving data into cloud raises many concerns, as enterprises tend to share or have little or no control over the d ...
... services are abundant. Enabling organizations to reduce cost without losing business agility and achieve economies of scale. However, information is knowledge especially for business and moving data into cloud raises many concerns, as enterprises tend to share or have little or no control over the d ...
No Slide Title - Department of Computer Science
... 4.Know the characteristics of superkey, candidate key, primary key, and foreign key. 5.Know the rules of relational integrity and referential integrity. 6. Be able to recognize and read relational algebra statements with the primary operators. 7.Be able to recognized simple relational calculus state ...
... 4.Know the characteristics of superkey, candidate key, primary key, and foreign key. 5.Know the rules of relational integrity and referential integrity. 6. Be able to recognize and read relational algebra statements with the primary operators. 7.Be able to recognized simple relational calculus state ...
OLAP Query Processing in Grids
... Provides inter and intra-query parallelism Offers high-performance for heavy-weight query processing over large databases - using non-expensive components - in a non-intrusive way - Making no changes to database applications - Keeping the same DBMS - Keeping the same logical database schema ...
... Provides inter and intra-query parallelism Offers high-performance for heavy-weight query processing over large databases - using non-expensive components - in a non-intrusive way - Making no changes to database applications - Keeping the same DBMS - Keeping the same logical database schema ...
Slide 1
... Provides inter and intra-query parallelism Offers high-performance for heavy-weight query processing over large databases - using non-expensive components - in a non-intrusive way - Making no changes to database applications - Keeping the same DBMS - Keeping the same logical database schema ...
... Provides inter and intra-query parallelism Offers high-performance for heavy-weight query processing over large databases - using non-expensive components - in a non-intrusive way - Making no changes to database applications - Keeping the same DBMS - Keeping the same logical database schema ...
Computing Consistent Query Answers using Conflict
... • A complete, scalable framework for computing consistent answers to projection-free relational algebra queries in the presence of denial constraints. Our approach uses a relational DBMS as a backend and scales up to large databases. • Novel optimization techniques to eliminate redundant DBMS querie ...
... • A complete, scalable framework for computing consistent answers to projection-free relational algebra queries in the presence of denial constraints. Our approach uses a relational DBMS as a backend and scales up to large databases. • Novel optimization techniques to eliminate redundant DBMS querie ...
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.