lecture1424712798
... required to represent an association among the attributes of an entity set and the relationships among different entities. 2. Relationship between record is represented by a relation that contains a key for each record involved in the relation. 3. Many to many relationship can easily be implemented. ...
... required to represent an association among the attributes of an entity set and the relationships among different entities. 2. Relationship between record is represented by a relation that contains a key for each record involved in the relation. 3. Many to many relationship can easily be implemented. ...
pdf-2
... share no physical component ! Database systems that run on each site are independent of each ...
... share no physical component ! Database systems that run on each site are independent of each ...
Temporal Databases
... – Assumption: Timeline is a finite sequence of discrete, indivisible time quanta. • Time Quanta: smallest unit of time system can represent. • Timepoints/point: time unit considered indivisible for our purpose. • An interval is treated as a single type, not as pair of separate values. ...
... – Assumption: Timeline is a finite sequence of discrete, indivisible time quanta. • Time Quanta: smallest unit of time system can represent. • Timepoints/point: time unit considered indivisible for our purpose. • An interval is treated as a single type, not as pair of separate values. ...
Document
... – still required by many applications – can be layered on top of XORT if so desired ...
... – still required by many applications – can be layered on top of XORT if so desired ...
original - Kansas State University
... Indexing: Store values of subelements/attributes to be indexed as extra fields of the relation, and build indices on these fields E.g. customer_name or account_number ...
... Indexing: Store values of subelements/attributes to be indexed as extra fields of the relation, and build indices on these fields E.g. customer_name or account_number ...
Transactions - Dr Gordon Russell
... The goal in a ‘concurrent’ DBMS is to allow multiple users to access the database simultaneously without interfering with each other. A problem with multiple users using the DBMS is that it may be possible for two users to try and change data in the database simultaneously. If this type of action is ...
... The goal in a ‘concurrent’ DBMS is to allow multiple users to access the database simultaneously without interfering with each other. A problem with multiple users using the DBMS is that it may be possible for two users to try and change data in the database simultaneously. If this type of action is ...
Oracle_ch9 - Gonzaga University
... • They all require that both queries – have the same number of display fields in the SELECT statement, and that – each field in the first query has the same data type as the corresponding column in the second ...
... • They all require that both queries – have the same number of display fields in the SELECT statement, and that – each field in the first query has the same data type as the corresponding column in the second ...
Selecting Multiple Rows from a Database
... Search&Promote, and Social Media are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries. © 2011 Adobe Systems Incorporated. All rights reserved. ...
... Search&Promote, and Social Media are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries. © 2011 Adobe Systems Incorporated. All rights reserved. ...
EPICS_IOC_database
... Fixed length strings maximum useful length is 40 characters Enumerated/menu choices select one of up to 16 strings stored as a short integer Arrays of any of the above types ...
... Fixed length strings maximum useful length is 40 characters Enumerated/menu choices select one of up to 16 strings stored as a short integer Arrays of any of the above types ...
Optimizing Web Applications to Perform Efficiently
... Application tier – File Handling (Leverage stream-chaining techniques) FileReader (DataInputStream - deprecated)Common and simple method to read a file but is extremely slow. The reason for the poor performance is that the DataInputStream class does no buffering. The resulting reads are done one by ...
... Application tier – File Handling (Leverage stream-chaining techniques) FileReader (DataInputStream - deprecated)Common and simple method to read a file but is extremely slow. The reason for the poor performance is that the DataInputStream class does no buffering. The resulting reads are done one by ...
What is Marklogic?
... repository. It indexes the words and values from each of the loaded documents, as well as the document structure. And, because of its unique Universal Index, Marklogic doesn’t require advance knowledge of the document structure nor complete adherence to a particular schema. Marklogic Server clusters ...
... repository. It indexes the words and values from each of the loaded documents, as well as the document structure. And, because of its unique Universal Index, Marklogic doesn’t require advance knowledge of the document structure nor complete adherence to a particular schema. Marklogic Server clusters ...
Chapter 3
... detail, because multiple database configurations are necessary to test and perform most distributed database operations. Job Queue (SNPn) and Advanced Queue Time Managers (QMNn) Oracle also supports two different job queue facilities. A job is a task or operation that Oracle executes asynchronously ...
... detail, because multiple database configurations are necessary to test and perform most distributed database operations. Job Queue (SNPn) and Advanced Queue Time Managers (QMNn) Oracle also supports two different job queue facilities. A job is a task or operation that Oracle executes asynchronously ...
XML and The Relational Data Model
... It is a metalanguage used to represent and manipulate data elements Similar to HTML in structure, but XML is concerned with the description and representation of data, rather than with the way it is displayed. XML is derived from Standard Generalized Markup Language (SGML) ...
... It is a metalanguage used to represent and manipulate data elements Similar to HTML in structure, but XML is concerned with the description and representation of data, rather than with the way it is displayed. XML is derived from Standard Generalized Markup Language (SGML) ...
HP JetAdvantage Security Manager
... Whether using local or remote SQL Server, Express or Full, the rules are essentially the same. In every case, Security Manager needs access to a SQL server instance. It can either create a new database, upgrade an existing database, or attach to an existing database, depending upon the situation and ...
... Whether using local or remote SQL Server, Express or Full, the rules are essentially the same. In every case, Security Manager needs access to a SQL server instance. It can either create a new database, upgrade an existing database, or attach to an existing database, depending upon the situation and ...
1_Managing external data_1
... • For each multivalue attribute in an entity set/relationship set – Build a new relation schema with two columns – One column for the primary keys of the entity set/relationship set that has the multivalue attribute – Another column for the multivalue attributes. Each cell of this column holds only ...
... • For each multivalue attribute in an entity set/relationship set – Build a new relation schema with two columns – One column for the primary keys of the entity set/relationship set that has the multivalue attribute – Another column for the multivalue attributes. Each cell of this column holds only ...
T - VUB STARLab
... When a message is received it is written to a received-messages relation if it is not already present (the message id is used for this check). The transaction performing this write is committed An acknowledgement (with message id) is then sent to the sending site. There may be very long dela ...
... When a message is received it is written to a received-messages relation if it is not already present (the message id is used for this check). The transaction performing this write is committed An acknowledgement (with message id) is then sent to the sending site. There may be very long dela ...
Hyper-Extended Oracle Performance Monitor 3 (Beta)
... performance analysis opportunities. The SQL Monitor provides a quick view of high load SQL statements with execution plans and bind variable definitions. No information is written to the Oracle database. A self contained Microsoft Access compatible database is built with the file name C:\OracleLog\O ...
... performance analysis opportunities. The SQL Monitor provides a quick view of high load SQL statements with execution plans and bind variable definitions. No information is written to the Oracle database. A self contained Microsoft Access compatible database is built with the file name C:\OracleLog\O ...
Slide 1 - MI-OAUG
... MDB (multidimensional database), the data is physically stored in a different file structure, optimized for multidimensional processing and fast retrieval. Hybrid OLAP products, which allow both direct access to relational data for multidimensional processing, as well as having their own optimized m ...
... MDB (multidimensional database), the data is physically stored in a different file structure, optimized for multidimensional processing and fast retrieval. Hybrid OLAP products, which allow both direct access to relational data for multidimensional processing, as well as having their own optimized m ...
PrefIndex: An Efficient Supergraph Containment Search Technique
... fa and fb are two features. cIndex first tests if q contains fa and fb . As fb is not contained by q, gc is filtered; while ga and gb survived to be candidates as fa is contained by q. As fa is a subgraph of ga and gb , it will be searched for two more times in q for the verifications of ga and gb . Ge ...
... fa and fb are two features. cIndex first tests if q contains fa and fb . As fb is not contained by q, gc is filtered; while ga and gb survived to be candidates as fa is contained by q. As fa is a subgraph of ga and gb , it will be searched for two more times in q for the verifications of ga and gb . Ge ...
Hands-On Database, 2e (Conger)
... Look at the software request form above. What questions would you ask about this form? Answer: I would ask when the form is used and by whom. I would also ask clarification for the terms R#, C# and EID. I would also ask what the various status values could be and who determines them. Diff: 3 Page Re ...
... Look at the software request form above. What questions would you ask about this form? Answer: I would ask when the form is used and by whom. I would also ask clarification for the terms R#, C# and EID. I would also ask what the various status values could be and who determines them. Diff: 3 Page Re ...
Appendix B-The Network Model
... of the primary keys of the associated entities, along with any descriptive attributes. The network model uses a similar representation for many-to-many relationships. When two record types have a many-to-many relationship, we create a new record type, called an intersection record or a link record, ...
... of the primary keys of the associated entities, along with any descriptive attributes. The network model uses a similar representation for many-to-many relationships. When two record types have a many-to-many relationship, we create a new record type, called an intersection record or a link record, ...
Open Forum Concept - SC32 WG2 Metadata Standards Home Page
... Software Component Registries -- Software Components ...
... Software Component Registries -- Software Components ...
EP 1 014 283 A1 - European Patent Office
... [0033] The publisher 42 publishes catalogued business objects for viewing via a Web browser 20 on a user terminal 14. The publisher 42 provides the Web browser 20 with an HTML page, in which a hyperlink reference to a catalogued business object appears. For example, a hyperlink reference to report 3 ...
... [0033] The publisher 42 publishes catalogued business objects for viewing via a Web browser 20 on a user terminal 14. The publisher 42 provides the Web browser 20 with an HTML page, in which a hyperlink reference to a catalogued business object appears. For example, a hyperlink reference to report 3 ...