4. Transaction processing concepts
... What is a transaction? • Logical unit of work • Execution of a program that accesses or changes the database Fundamental property of a database: • The data are shared among several users and applications concurrent processing, possibly conflicting interests. AdvDB-3 ...
... What is a transaction? • Logical unit of work • Execution of a program that accesses or changes the database Fundamental property of a database: • The data are shared among several users and applications concurrent processing, possibly conflicting interests. AdvDB-3 ...
ppt
... SQL-86 or SQL 1.A. SQL-92 is referred to as SQL-2. Later standards (from SQL-1999) are divided into core specification and specialized extensions. The extensions are implemented for different applications – such as data mining, data warehousing, multimedia etc. SQL-2006 added XML features (Ch. 13); ...
... SQL-86 or SQL 1.A. SQL-92 is referred to as SQL-2. Later standards (from SQL-1999) are divided into core specification and specialized extensions. The extensions are implemented for different applications – such as data mining, data warehousing, multimedia etc. SQL-2006 added XML features (Ch. 13); ...
An Extensible Architecture for Enterprise
... Poirot will be open-sourced in the Summer, and has already been requested by organizations such as Motorola and Siemens. Security issues are therefore important to address. Security Vulnerabilities and Their Impact upon Poirot ...
... Poirot will be open-sourced in the Summer, and has already been requested by organizations such as Motorola and Siemens. Security issues are therefore important to address. Security Vulnerabilities and Their Impact upon Poirot ...
Differences and Interrelationships Between the SQL Procedure and SAS/ACCESS Software
... After two years of developing $AS System databases fortesting and answering questions concerning the various types of database structures available in the SAS System, it has become apparent that a deta,jled explanation concerning SAS database structures, options and functions would be helpful to man ...
... After two years of developing $AS System databases fortesting and answering questions concerning the various types of database structures available in the SAS System, it has become apparent that a deta,jled explanation concerning SAS database structures, options and functions would be helpful to man ...
The Kexi Handbook - KDE Documentation
... performing queries, and processing data. Forms can be created to provide a custom interface to your data. All database objects - tables, queries and forms - are stored in the database, making it easy to share data and design. Kexi is part of the Calligra productivity suite by KDE. In addition to sto ...
... performing queries, and processing data. Forms can be created to provide a custom interface to your data. All database objects - tables, queries and forms - are stored in the database, making it easy to share data and design. Kexi is part of the Calligra productivity suite by KDE. In addition to sto ...
Specialized Search Engine with AI
... from the minimum value each barrel can hold; hence the size of the word index will be reduced. The word index is much smaller than the document index, but still too big to fit in main memory, even for a cluster of hundreds of machines. Therefore the relevant part of the word index is kept in main me ...
... from the minimum value each barrel can hold; hence the size of the word index will be reduced. The word index is much smaller than the document index, but still too big to fit in main memory, even for a cluster of hundreds of machines. Therefore the relevant part of the word index is kept in main me ...
Slides
... • Wedding gift purchases – People can group together to purchase a more expensive item ...
... • Wedding gift purchases – People can group together to purchase a more expensive item ...
Stored Procedures BY EXAMPLE
... the database for security and performance reasons. -The same routines can be available for multi-use, in different transactions or by multiple programs. ...
... the database for security and performance reasons. -The same routines can be available for multi-use, in different transactions or by multiple programs. ...
Mini-MSDD - Relational Databases
... foundation The fundamental part of a thing The chief ingredient of anything, viewed as its fundamental constituent Base in its most general sense equals bottom, but, more specifically, implies a broad bottom by which something is held up or stabilized ...
... foundation The fundamental part of a thing The chief ingredient of anything, viewed as its fundamental constituent Base in its most general sense equals bottom, but, more specifically, implies a broad bottom by which something is held up or stabilized ...
slides in pdf - Università degli Studi di Milano
... What kinds of DNA are sensitive to this new drug? ...
... What kinds of DNA are sensitive to this new drug? ...
Spatial Concepts and Data Models
... In other words, you can’t define spatial data type or spatial functions (or operators) • How would you store field value (e.g. elevation) in relational database? • Can you link your table to raster image? • Can you write the SQL that returns the distance between ...
... In other words, you can’t define spatial data type or spatial functions (or operators) • How would you store field value (e.g. elevation) in relational database? • Can you link your table to raster image? • Can you write the SQL that returns the distance between ...
Chapter3_3 - Babu Ram Dawadi
... and an integer value k, the clustering problem is to define a mapping f: D -> {1, …, k} where each ti is assigned to one cluster Kj, 1<=j<=k. here ‘k’ is the number of clusters. ...
... and an integer value k, the clustering problem is to define a mapping f: D -> {1, …, k} where each ti is assigned to one cluster Kj, 1<=j<=k. here ‘k’ is the number of clusters. ...
Microsoft SQL Server Database Protection Using
... demands increase for continuous SQL Server database uptime. PS Series arrays provide administrators the ability to create volume based copies of data using snapshots, clones and replicas. These copies are known as “point-in-time” copies of volume data. The Dell™ EqualLogic Host Integration Tools for ...
... demands increase for continuous SQL Server database uptime. PS Series arrays provide administrators the ability to create volume based copies of data using snapshots, clones and replicas. These copies are known as “point-in-time” copies of volume data. The Dell™ EqualLogic Host Integration Tools for ...
mca - Eduvark
... 8085 Cross Assembler using In-Circuit Emulator (ICE) with 8085µP Trainer and PC as Terminal ...
... 8085 Cross Assembler using In-Circuit Emulator (ICE) with 8085µP Trainer and PC as Terminal ...
Applications of the Join Operation in the REA Data Model
... that takes place next is based on the data field(s) and the join condition using any of the θ operators. The self-join is performed when the relationship between records on a set of specific data fields in that table is of interest (e.g., we may be interested in the customer’s purchasing behavior af ...
... that takes place next is based on the data field(s) and the join condition using any of the θ operators. The self-join is performed when the relationship between records on a set of specific data fields in that table is of interest (e.g., we may be interested in the customer’s purchasing behavior af ...
DATABASE SCHEMA INTEGRATION PROCESS
... In [8], the authors present methods for the analysis and design of cooperative object-oriented information systems. A model of information system is split into several subsystems that can be handled more easily. Interrelationships existing between such subsystems require that the development methods ...
... In [8], the authors present methods for the analysis and design of cooperative object-oriented information systems. A model of information system is split into several subsystems that can be handled more easily. Interrelationships existing between such subsystems require that the development methods ...
DBA Guide to Databases: VMware, Inc.
... system is configured can become limiting factors, as can the database software configuration. The way the database is physically laid out on the disk drives and the types of indexing chosen also have an effect. The way queries against the database are coded can dramatically change how quickly result ...
... system is configured can become limiting factors, as can the database software configuration. The way the database is physically laid out on the disk drives and the types of indexing chosen also have an effect. The way queries against the database are coded can dramatically change how quickly result ...
Normalization of Database Tables
... the BCNF are equivalent. • BCNF is a special case of 3NF. • Figure 5.7 illustrates a table that is in 3NF but not in BCNF. • Figure 5.8 shows how the table can be decomposed to conform to the BCNF form. ...
... the BCNF are equivalent. • BCNF is a special case of 3NF. • Figure 5.7 illustrates a table that is in 3NF but not in BCNF. • Figure 5.8 shows how the table can be decomposed to conform to the BCNF form. ...
View File - University of Engineering and Technology, Taxila
... the details of, and changes to, the ICDE data store structure. 2. Support ease of server modification with minimal impact on the existing ICDE client code that uses the API. ...
... the details of, and changes to, the ICDE data store structure. 2. Support ease of server modification with minimal impact on the existing ICDE client code that uses the API. ...
Avoiding Common Traps When Accessing RDBMS Data
... same name as the original one. Relational databases don’t work this way: creating a table is normally a long-term commitment, with changes made within the table, rather than by creating a new instance of the table. It’s much more of a structured environment, which certainly isn’t a bad thing. Keep i ...
... same name as the original one. Relational databases don’t work this way: creating a table is normally a long-term commitment, with changes made within the table, rather than by creating a new instance of the table. It’s much more of a structured environment, which certainly isn’t a bad thing. Keep i ...
MySQL 5.6 - Computer Science
... LAMP(Linux (operating system), Apache HTTP Server, MySQL (database software), and PHP, Perl or Python) software stack. Its popularity for use with web applications is closely tied to the ...
... LAMP(Linux (operating system), Apache HTTP Server, MySQL (database software), and PHP, Perl or Python) software stack. Its popularity for use with web applications is closely tied to the ...
Using SAP MaxDB Database Manager
... The Database Manager is a tool for managing MaxDB databases. You can use it to create, control, monitor, backup, and if necessary restore database instances on the local host or on remote hosts. The Database Manager consists of a server part and a client part. The following clients, providing simila ...
... The Database Manager is a tool for managing MaxDB databases. You can use it to create, control, monitor, backup, and if necessary restore database instances on the local host or on remote hosts. The Database Manager consists of a server part and a client part. The following clients, providing simila ...
Running External Programs using Perl
... The query sequence must be written in “FASTA” format. This consists of a single comment line that starts with a >, followed by one or more lines of sequence. Comments usually start with a unique identifier for the sequence, then some other descriptive information. To save trouble later, the unique i ...
... The query sequence must be written in “FASTA” format. This consists of a single comment line that starts with a >, followed by one or more lines of sequence. Comments usually start with a unique identifier for the sequence, then some other descriptive information. To save trouble later, the unique i ...