Web Architecture
... creating interactive web applications. The intent is to make web pages feel more responsive by exchanging small amounts of data with the server behind the scenes, so that the entire web page does not have to be reloaded each time the user makes a change. This is meant to increase the web page's inte ...
... creating interactive web applications. The intent is to make web pages feel more responsive by exchanging small amounts of data with the server behind the scenes, so that the entire web page does not have to be reloaded each time the user makes a change. This is meant to increase the web page's inte ...
Physical Database Design II
... Suppose that contracts with value > 10000 are subject to different rules. This means that queries on Contracts will often contain the condition val>10000. One way to deal with this is to build a clustered B+ tree index on the val field of Contracts. A second approach is to replace contracts by two n ...
... Suppose that contracts with value > 10000 are subject to different rules. This means that queries on Contracts will often contain the condition val>10000. One way to deal with this is to build a clustered B+ tree index on the val field of Contracts. A second approach is to replace contracts by two n ...
- Lotus Live Projects
... information of interest and this information is going to be subsequently useful for querying the database. Our approach relies on the idea that humans are more likely to add the necessary metadata during creation time, if prompted by the interface; or that it is much easier for humans (and/or algori ...
... information of interest and this information is going to be subsequently useful for querying the database. Our approach relies on the idea that humans are more likely to add the necessary metadata during creation time, if prompted by the interface; or that it is much easier for humans (and/or algori ...
Unit 1
... Nature of Relational Databases • All data, even data about data such as a table and column names, are stored in tables. • Each row in a table should have a column (or columns) that uniquely identifies it, a primary key. • This primary key is repeated in other tables to create a relationship. • When ...
... Nature of Relational Databases • All data, even data about data such as a table and column names, are stored in tables. • Each row in a table should have a column (or columns) that uniquely identifies it, a primary key. • This primary key is repeated in other tables to create a relationship. • When ...
Data mining using Relational Database
... DS0 shares the records with DS. Only if DS0 changes a record for computation purposes, a copy of the original record is inserted into the Dataset table with the did attribute set to IDS0 . This new record will be updated. Each Dataset object has to keep track of the set of did values with which its ...
... DS0 shares the records with DS. Only if DS0 changes a record for computation purposes, a copy of the original record is inserted into the Dataset table with the did attribute set to IDS0 . This new record will be updated. Each Dataset object has to keep track of the set of did values with which its ...
Going Beyond Simple Information Maps to Improve Access to Data Sources
... SAS stored processes are similar to the stored procedures in databases. A SAS stored process is SAS code or program flow that is registered in the Metadata server using the Management Console. Stored processes are very powerful in that they can have parameters for user input and produce various outp ...
... SAS stored processes are similar to the stored procedures in databases. A SAS stored process is SAS code or program flow that is registered in the Metadata server using the Management Console. Stored processes are very powerful in that they can have parameters for user input and produce various outp ...
WCFSQLTablePollingBlogdocx
... WCF SQL Polling with BizTalk ........................................................................................................................ 1 Typed Polling with WCF Adapters ................................................................................................................. 2 ...
... WCF SQL Polling with BizTalk ........................................................................................................................ 1 Typed Polling with WCF Adapters ................................................................................................................. 2 ...
Effective Keyword Based Selection of Relational Databases
... measured as a combination of two factors: 1) Proximity factor – Inverse of distance 2) Frequency factor, given a distance d – Number of combinations of exactly d+1 distinct tuples that can be joined in a sequence to get the two keywords in the ...
... measured as a combination of two factors: 1) Proximity factor – Inverse of distance 2) Frequency factor, given a distance d – Number of combinations of exactly d+1 distinct tuples that can be joined in a sequence to get the two keywords in the ...
DataGuard_for_RAC_migrations_v2 - Indico
... • The Data Guard based migration procedure has been used this year at CERN: – we migrated all production and validation databases ~15 systems in total – we moved from RHEL 3 to RHEL 4 at the same ...
... • The Data Guard based migration procedure has been used this year at CERN: – we migrated all production and validation databases ~15 systems in total – we moved from RHEL 3 to RHEL 4 at the same ...
What do I really need to know about upgrading
... Determine the upgrade path and choose upgrade method Prepare backup / recovery strategy and clone database to test Establish performance baseline/metrics before upgrade Develop a test plan for database, applications, and reports Test upgraded database with applications and reports ...
... Determine the upgrade path and choose upgrade method Prepare backup / recovery strategy and clone database to test Establish performance baseline/metrics before upgrade Develop a test plan for database, applications, and reports Test upgraded database with applications and reports ...
EnterPrise2 - Syracuse University`s College of Engineering and
... Transactions are composed by a transaction root object from individual transactional or nontransactional objects Transaction root objects are located at a layer above the data access layer No objects in data access layer marked for requiring new transaction Objects that perform write operation must ...
... Transactions are composed by a transaction root object from individual transactional or nontransactional objects Transaction root objects are located at a layer above the data access layer No objects in data access layer marked for requiring new transaction Objects that perform write operation must ...
XZ-Ordering: A Space-Filling Curve for Objects with Spatial Extension
... corresponding update to the relational database must be aborted. For this purpose, a distributed commit protocol for heterogeneous database systems must be implemented, a time-consuming task which requires a deep knowledge of the participating systems. The hybrid solution involves further problems. ...
... corresponding update to the relational database must be aborted. For this purpose, a distributed commit protocol for heterogeneous database systems must be implemented, a time-consuming task which requires a deep knowledge of the participating systems. The hybrid solution involves further problems. ...
5 - Dr.Saleh Alzahrani Website
... • Database Management. The database management approach affects the storage and processing of data. The data needed by different applications are consolidated and integrated into several common databases instead of being stored in many independent data files. Also, the database management approach e ...
... • Database Management. The database management approach affects the storage and processing of data. The data needed by different applications are consolidated and integrated into several common databases instead of being stored in many independent data files. Also, the database management approach e ...
Fact Table
... • The lower the granularity, the larger the fact table. • In the previous example, moving from a daily to weekly grain would reduce the potential number of records to only slightly more than 52,000,000 records (500 products x 200 stores x 10 years x 52 weeks) • The data types for the fields in the f ...
... • The lower the granularity, the larger the fact table. • In the previous example, moving from a daily to weekly grain would reduce the potential number of records to only slightly more than 52,000,000 records (500 products x 200 stores x 10 years x 52 weeks) • The data types for the fields in the f ...
Database Communication using Web Services
... • It communicates with other /ers by which it puts out the results to the browser/client /er and all other /ers in the network. • In simple terms it is a layer which users can access directl ...
... • It communicates with other /ers by which it puts out the results to the browser/client /er and all other /ers in the network. • In simple terms it is a layer which users can access directl ...
slides17 - University of California, Irvine
... Backed by fail-over solutions Allows expansions and user driven integration for application development ICS214B ...
... Backed by fail-over solutions Allows expansions and user driven integration for application development ICS214B ...
customer-name
... find the names of employees who have no dependents. Q6 : {qs l ( t) (EMPLOYEE(qrstuvwxyz) and (( l)(not(DEPENDENT(lmnop)) or not (t=l))))} Query 6 can be restated using universal quantifiers instead of the existensial quantifiers, as shown in Q6A: Q6A : {qs l ( t) (EMPLOYEE(qrstuvwxyz) and (( l) (no ...
... find the names of employees who have no dependents. Q6 : {qs l ( t) (EMPLOYEE(qrstuvwxyz) and (( l)(not(DEPENDENT(lmnop)) or not (t=l))))} Query 6 can be restated using universal quantifiers instead of the existensial quantifiers, as shown in Q6A: Q6A : {qs l ( t) (EMPLOYEE(qrstuvwxyz) and (( l) (no ...
OODB_Lecture_II - Computing at Northumbria
... schema of an ODMG compliant database. • ODL supports all semantic constructs of the ODMG object model. • ODL is independent of any programming language, and hence provides means for the portability of database schema across complaint OODBMSs. • The database schema may comprise of: – an ODL module (i ...
... schema of an ODMG compliant database. • ODL supports all semantic constructs of the ODMG object model. • ODL is independent of any programming language, and hence provides means for the portability of database schema across complaint OODBMSs. • The database schema may comprise of: – an ODL module (i ...
Troubleshoot connecting to SQL in Data Connector
... A message similar to Server is listening on [ 'any' 1433] should be listed. This
message indicates that this instance of SQL Server is listening on all the computers IP
Addresses (for IP version 4) and is listening to TCP port 1433. (TCP port 1433 is usually the
port used by the Database Engi ...
... A message similar to Server is listening on [ 'any'
Microsoft Jet Database Engine
The Microsoft Jet Database Engine is a database engine on which several Microsoft products have been built. A database engine is the underlying component of a database, a collection of information stored on a computer in a systematic way. The first version of Jet was developed in 1992, consisting of three modules which could be used to manipulate a database.Database connect for MicrosoftJET stands for Joint Engine Technology, sometimes being referred to as Microsoft JET Engine or simply Jet. Microsoft Access and Visual Basic use or have used Jet as their underlying database engine. It has since been superseded for general use, however, first by Microsoft Desktop Engine (MSDE), then later by SQL Server Express. For larger database needs, Jet databases can be upgraded (or, in Microsoft parlance, ""up-sized"") to Microsoft's flagship database product, SQL Server.However, this does not mean that a MS Jet (Red) database cannot match MS SQL Server in storage capacity. A 5 billion record MS Jet (Red) database with compression and encryption turned on requires about 1 terabyte of disk storage space, comprising hundreds of (*.mdb) files, each acting as partial table, and not as a database in itself.Over the years, Jet has become almost synonymous with Microsoft Access, to the extent that many people refer to a Jet database as an ""Access database"".