Database Connections with ASP.Net
... Database Connections with ASP.Net Connection Pooling Acquiring a connection takes a short, but definite, amount of time. In a web application in which requests are being handled efficiently, connections will be opened and closed endlessly as new requests are processed. In this environment, the smal ...
... Database Connections with ASP.Net Connection Pooling Acquiring a connection takes a short, but definite, amount of time. In a web application in which requests are being handled efficiently, connections will be opened and closed endlessly as new requests are processed. In this environment, the smal ...
Teaching Scheme Business Information Technology/Software
... performance of a relational database system. When do performance issues arise in the database development process? How should performance issues be approached? What areas should be considered first when tuning a database.? What are the constraints? Reading: Ensor(Chapter 2), Corrigan Service Time(SM ...
... performance of a relational database system. When do performance issues arise in the database development process? How should performance issues be approached? What areas should be considered first when tuning a database.? What are the constraints? Reading: Ensor(Chapter 2), Corrigan Service Time(SM ...
JDBC Drivers
... • The JDBC API includes interfaces that manage connections to the DBMS, statements to perform operations and result sets that encapsulate the result of retrieval operations. ...
... • The JDBC API includes interfaces that manage connections to the DBMS, statements to perform operations and result sets that encapsulate the result of retrieval operations. ...
Databases 2003 - Carnegie Mellon University
... • Logging. Maintaining a record of all data updates so databases can be repaired if failure occurs. • Updates must be logged before they are performed. If failure occurs, transaction can complete from failure point. • If abort is necessary, can undo logged transactions. • Without logging, can’t reco ...
... • Logging. Maintaining a record of all data updates so databases can be repaired if failure occurs. • Updates must be logged before they are performed. If failure occurs, transaction can complete from failure point. • If abort is necessary, can undo logged transactions. • Without logging, can’t reco ...
The Starburst Rule System: Language Design, Implementation, and
... automatically deriving Starburst rules from deductive rules for both of these approaches [CW92a, Wid91]. Semantic heterogeneity { Semantic heterogeneity occurs when multiple databases model the same realworld entities in di erent ways. Whenever possible, it is desirable to maintain consistency acros ...
... automatically deriving Starburst rules from deductive rules for both of these approaches [CW92a, Wid91]. Semantic heterogeneity { Semantic heterogeneity occurs when multiple databases model the same realworld entities in di erent ways. Whenever possible, it is desirable to maintain consistency acros ...
Chapter 2. Some tools for building and querying annotated speech
... interface to the Emu query language from within the Emu Query Tool. It is shown how each simple query is entered in the interface so that the complex query can be calculated from the system. Subsequently, the database is searched and the result is shown. A segment is opened with the Emu labelling to ...
... interface to the Emu query language from within the Emu Query Tool. It is shown how each simple query is entered in the interface so that the complex query can be calculated from the system. Subsequently, the database is searched and the result is shown. A segment is opened with the Emu labelling to ...
E-Notebook 11.5 Installation Guide
... if you plan on sharing your database since some of the folders need to be shared over the network in that case. The example below will use a ‘data’ hard drive. You can create the data and configuration folders in advance before running the Database Setup Wizard but if you have not so, the Wizard wil ...
... if you plan on sharing your database since some of the folders need to be shared over the network in that case. The example below will use a ‘data’ hard drive. You can create the data and configuration folders in advance before running the Database Setup Wizard but if you have not so, the Wizard wil ...
Overview of First4DB Monitoring
... extract and Oracle Data Guard - Switchover/Fail-over Operations Integrate GoldenGate integrated extract with Data Guard so that GoldenGate processes can also be switchedover/failed-over automatically with no manual intervention as part of Data Guard switchover/failover Switchover/failover is actuall ...
... extract and Oracle Data Guard - Switchover/Fail-over Operations Integrate GoldenGate integrated extract with Data Guard so that GoldenGate processes can also be switchedover/failed-over automatically with no manual intervention as part of Data Guard switchover/failover Switchover/failover is actuall ...
Introducing Visual Studio Team Edition for Database Professionals
... • Business results from IT • Team productivity and ...
... • Business results from IT • Team productivity and ...
INT7016 – Contemporary Issues in Database Development
... • During a checkpoint and after the associated log switch, LGWR will update the headers of database and control files, unless the optional checkpoint (CKPT) process has been started, in which case it will perform this task. • The parameter LOG_CHECKPOINT_TIMEOUT is used to determine the interval of ...
... • During a checkpoint and after the associated log switch, LGWR will update the headers of database and control files, unless the optional checkpoint (CKPT) process has been started, in which case it will perform this task. • The parameter LOG_CHECKPOINT_TIMEOUT is used to determine the interval of ...
c14-w-sql-php
... deletions - A relational database is a collection of tables of data, each of which has one special column that stores the primary keys of the table - Rows are sometimes called entities - Designing a relational database for used Corvettes that are for sale ...
... deletions - A relational database is a collection of tables of data, each of which has one special column that stores the primary keys of the table - Rows are sometimes called entities - Designing a relational database for used Corvettes that are for sale ...
The What How and Why of RMAN
... Let’s face it – ORACLE backups and recoveries are complex … Making a mistake is easy … if you do NOT understand what you are doing … ...
... Let’s face it – ORACLE backups and recoveries are complex … Making a mistake is easy … if you do NOT understand what you are doing … ...
What restrictions are imposed on outer join
... For example: Suppose the Address in Saving Account file have fields: Add line1, Add line2, City, State, Pin while the fields in address of Current account are: House No., Street No., Locality, City, State, Pin. Administrator is asked to provide the list of customers living in a particular locality. ...
... For example: Suppose the Address in Saving Account file have fields: Add line1, Add line2, City, State, Pin while the fields in address of Current account are: House No., Street No., Locality, City, State, Pin. Administrator is asked to provide the list of customers living in a particular locality. ...
inconsistent databases
... of triggers or application programs with respect to (wrt) ensuring database consistency is not guaranteed by the DBMS. It is the case that, for whatever reasons, databases may become inconsistent, i.e. they may violate certain ICs that are considered to be relevant to maintain for a certain applicat ...
... of triggers or application programs with respect to (wrt) ensuring database consistency is not guaranteed by the DBMS. It is the case that, for whatever reasons, databases may become inconsistent, i.e. they may violate certain ICs that are considered to be relevant to maintain for a certain applicat ...
here
... • In a list, each row may contain information on more than one theme. As a result, needed information may appear in the lists only if information on other themes is also present – For Example: A list of Projects may include Project Manager information (Name, ID, and Phone Extension) and Project info ...
... • In a list, each row may contain information on more than one theme. As a result, needed information may appear in the lists only if information on other themes is also present – For Example: A list of Projects may include Project Manager information (Name, ID, and Phone Extension) and Project info ...
Backup/Restore and Replication
... Which recovery model is best for the databases in your environment? This setting depends on the critically of the data and the acceptable data loss in the event of a system failure. SQL Server 2000 offers three recovery models that can be implemented for your databases. The appropriate choice depend ...
... Which recovery model is best for the databases in your environment? This setting depends on the critically of the data and the acceptable data loss in the event of a system failure. SQL Server 2000 offers three recovery models that can be implemented for your databases. The appropriate choice depend ...
account-number - UCLA Computer Science
... The subset of R2 is a foreign key referencing K1 in relation r1, if for every t2 in r2 there must be a tuple t1 in r1 such that t1[K1] = t2[]. Referential integrity constraint also called subset dependency since its can be written as ...
... The subset of R2 is a foreign key referencing K1 in relation r1, if for every t2 in r2 there must be a tuple t1 in r1 such that t1[K1] = t2[]. Referential integrity constraint also called subset dependency since its can be written as ...
Document
... of the model, network databases generally implement the set relationships by means of pointer (computer programming)|pointers that directly address the location of a record on disk. This gives excellent retrieval performance, at the expense of operations such as database loading and reorganization. ...
... of the model, network databases generally implement the set relationships by means of pointer (computer programming)|pointers that directly address the location of a record on disk. This gives excellent retrieval performance, at the expense of operations such as database loading and reorganization. ...
Regit Express - Point of Sale Software
... example, if the tax rate is 6.5% and the customer's purchase was for $11.50, the tax owed would be $.7475 (74.75 cents). This would be rounded down by the program to $.74 (74 cents). If Round .5 And Above Up is selected, the tax owed will be rounded to the nearest cent. That is, any calculation show ...
... example, if the tax rate is 6.5% and the customer's purchase was for $11.50, the tax owed would be $.7475 (74.75 cents). This would be rounded down by the program to $.74 (74 cents). If Round .5 And Above Up is selected, the tax owed will be rounded to the nearest cent. That is, any calculation show ...
Fast Vertical Mining Using Diffsets
... utilized the traditional horizontal transactional database format. However, a number of vertical mining algorithms have been proposed recently for association mining [22, 20, 7, 23, 8, 6] (as well as other mining tasks like classification [19]). In a vertical database each item is associated with it ...
... utilized the traditional horizontal transactional database format. However, a number of vertical mining algorithms have been proposed recently for association mining [22, 20, 7, 23, 8, 6] (as well as other mining tasks like classification [19]). In a vertical database each item is associated with it ...
Read the note on How to Configure a Downstream
... Configuring an Oracle GoldenGate Downstream Integrated Extract/Replicat This note describes the steps involved in configuring an Oracle GoldenGate replication environment using a Downstream Capture database. ...
... Configuring an Oracle GoldenGate Downstream Integrated Extract/Replicat This note describes the steps involved in configuring an Oracle GoldenGate replication environment using a Downstream Capture database. ...
ORACLE DATABASE HIGH AVAILABILITY
... ASM spreads files across all available storage and mirror at the database file level rather than the entire disk level. ASM simplifies the processes of setting up mirroring, adding disks, and removing disks Instead of managing hundreds and possibly thousands of files (as in a large data warehouse), ...
... ASM spreads files across all available storage and mirror at the database file level rather than the entire disk level. ASM simplifies the processes of setting up mirroring, adding disks, and removing disks Instead of managing hundreds and possibly thousands of files (as in a large data warehouse), ...
Tuning Mondrian Performance
... makes SQL calls to get member lists and determine cardinality, and then to load segments into the cache. When Mondrian is closed and restarted, it has to do that work again. This can be a significant chunk of time depending on the cube size. For example in one test an 8GB cube (55M row fact table) t ...
... makes SQL calls to get member lists and determine cardinality, and then to load segments into the cache. When Mondrian is closed and restarted, it has to do that work again. This can be a significant chunk of time depending on the cube size. For example in one test an 8GB cube (55M row fact table) t ...
Mining Association Rules between Sets of Items in Large Databases
... form X =) Ij , where X is a set of some items in I , and Ij is a single item in I that is not present in X. The rule X =) Ij is satis ed in the set of transactions T with the con dence factor 0 c 1 i at least c% of transactions in T that satisfy X also satisfy Ij . We will use the notation X =) ...
... form X =) Ij , where X is a set of some items in I , and Ij is a single item in I that is not present in X. The rule X =) Ij is satis ed in the set of transactions T with the con dence factor 0 c 1 i at least c% of transactions in T that satisfy X also satisfy Ij . We will use the notation X =) ...
Database Design
... design correct for the client’s needs?) Database design can be used to build the database • e.g., Build database in MS Access Can database design get more complicated than this? • Yes! • But … the previous example will suffice for MIS 320 – The lab database projects will typically focus on “one to m ...
... design correct for the client’s needs?) Database design can be used to build the database • e.g., Build database in MS Access Can database design get more complicated than this? • Yes! • But … the previous example will suffice for MIS 320 – The lab database projects will typically focus on “one to m ...