Active Data Guard at CERN
... • We have been using it since a few years • Switchover/failover is our first line of defence • Saved the day already for production services ...
... • We have been using it since a few years • Switchover/failover is our first line of defence • Saved the day already for production services ...
Big-Data-NoSQL-MongoDB-1-HW-Key - Dr. Tom Hicks
... very different fashion from the better known relational databases (RDB). RDBs pre-define the data structure in the database as a series of tables containing fields with well-defined data types. Exposing the data types to the database program allows it to apply a number of optimizations. In contrast, ...
... very different fashion from the better known relational databases (RDB). RDBs pre-define the data structure in the database as a series of tables containing fields with well-defined data types. Exposing the data types to the database program allows it to apply a number of optimizations. In contrast, ...
Cache Augmented Database Management Systems
... tables of the RDBMS (magnetic disk of 1970s) consistent with the key-value pairs stored in a KVS (main memory of 1970s). Physical data independence enables a CADBMS to hide details of RDBMS and KVS from the application developer to provide functionalities such as transparent cache consistency (maint ...
... tables of the RDBMS (magnetic disk of 1970s) consistent with the key-value pairs stored in a KVS (main memory of 1970s). Physical data independence enables a CADBMS to hide details of RDBMS and KVS from the application developer to provide functionalities such as transparent cache consistency (maint ...
pdf
... What to Index on? • Database systems index primary and secondary keys – This is the hybrid approach – Index provides fast access to a subset of database records – Scan subset to find solution set ...
... What to Index on? • Database systems index primary and secondary keys – This is the hybrid approach – Index provides fast access to a subset of database records – Scan subset to find solution set ...
Introduction to JDeveloper
... – Provides single searchable view of and access to many types of resources – Facilitates sharing resources among developers ...
... – Provides single searchable view of and access to many types of resources – Facilitates sharing resources among developers ...
Database Fundamentals
... Relations as a Database An essential attribute of a relation is that every tuple must be unique. This means that the values present in some individual attribute (or set of attributes) must always provide enough information to allow a unique identification of every tuple in the relation. In a relati ...
... Relations as a Database An essential attribute of a relation is that every tuple must be unique. This means that the values present in some individual attribute (or set of attributes) must always provide enough information to allow a unique identification of every tuple in the relation. In a relati ...
Jerry Held
... Fine-Grained Access Control Application Context Users only see data that they have access to Row-level access control ...
... Fine-Grained Access Control Application Context Users only see data that they have access to Row-level access control ...
Title Goes Here - Binus Repository
... Introduction to Physical Database Design • After ER design, schema refinement, and the definition of views, we have the conceptual and external schemas for our database. • The next step is to choose indexes, make clustering decisions, and to refine the conceptual and external schemas (if necessary) ...
... Introduction to Physical Database Design • After ER design, schema refinement, and the definition of views, we have the conceptual and external schemas for our database. • The next step is to choose indexes, make clustering decisions, and to refine the conceptual and external schemas (if necessary) ...
Physical Database Design and Performance
... All relevant modern DBMSs now have more sophisticated programming capabilities, such as case expressions, user-defined functions, and triggers, so that such logic can be available in the database for all users without application-specific programming. De-Normalizing & Partitioning Data Modern DB ...
... All relevant modern DBMSs now have more sophisticated programming capabilities, such as case expressions, user-defined functions, and triggers, so that such logic can be available in the database for all users without application-specific programming. De-Normalizing & Partitioning Data Modern DB ...
INTRODUCTION TO DATABASE (cont.)
... • Rise to dominance due in part to its powerful and flexible query language • Structured Query Language (SQL) allows the user to specify what must be done without specifying how it must be done • SQL-based relational database application involves: – User interface – A set of tables stored in the dat ...
... • Rise to dominance due in part to its powerful and flexible query language • Structured Query Language (SQL) allows the user to specify what must be done without specifying how it must be done • SQL-based relational database application involves: – User interface – A set of tables stored in the dat ...
database of observational user requirements and observing system
... The ICT-IOS also considered the two different approaches for the hosting, and operations of the database (i.e. the centralized vs. distributed approach). The meeting reviewed advantages and drawbacks of the two approaches and recognized that while the centralized approach would be more straight forw ...
... The ICT-IOS also considered the two different approaches for the hosting, and operations of the database (i.e. the centralized vs. distributed approach). The meeting reviewed advantages and drawbacks of the two approaches and recognized that while the centralized approach would be more straight forw ...
PHP Database Support
... PHP Database Support (cont'd) • The other way is to access the required database using the PEAR DB library which comes with PHP. – PEAR DB is a database-independent library which hides database specifics allowing the same PHP script to access many DBMSs. – One disadvantage of the PEAR DB approach i ...
... PHP Database Support (cont'd) • The other way is to access the required database using the PEAR DB library which comes with PHP. – PEAR DB is a database-independent library which hides database specifics allowing the same PHP script to access many DBMSs. – One disadvantage of the PEAR DB approach i ...
Ch17: concurency control
... If a transaction Ti is aborted, all its actions have to be undone. Not only that, if Tj reads an object last written by Ti, Tj must be aborted as well! Most systems avoid such cascading aborts by releasing a transaction’s locks only at commit time. ...
... If a transaction Ti is aborted, all its actions have to be undone. Not only that, if Tj reads an object last written by Ti, Tj must be aborted as well! Most systems avoid such cascading aborts by releasing a transaction’s locks only at commit time. ...
Mining the evolutionary search
... Various enhanced strategies for diversity maintenance have been proposed which target the different stages of the evolution process. ...
... Various enhanced strategies for diversity maintenance have been proposed which target the different stages of the evolution process. ...
JDBC - Free
... Within the context of a connection SQL statements are executed and results returned (or an Integer if Query is not a SELECT statement) There can be multiple connections to a database A connection provides ”metadata” i.e., information about the database, tables, fields. Connection object has methods ...
... Within the context of a connection SQL statements are executed and results returned (or an Integer if Query is not a SELECT statement) There can be multiple connections to a database A connection provides ”metadata” i.e., information about the database, tables, fields. Connection object has methods ...
Creating Mysql databse Users and changing Password
... 5. It is allow changes to structure of table while server is running. 6. MySQL has a wide user base. 7. It is a very fast thread-based memory allocation system. 8. MySQL Written in C and C++ language. 9. MySQL code is tested with different compilers. 10. MySQL is available as a separate program for ...
... 5. It is allow changes to structure of table while server is running. 6. MySQL has a wide user base. 7. It is a very fast thread-based memory allocation system. 8. MySQL Written in C and C++ language. 9. MySQL code is tested with different compilers. 10. MySQL is available as a separate program for ...
A Critical Comparison Between Distributed Database Approach
... queries and analysis. The characteristics of the dimensional modeling are: It provide the way to access the data It is a query centric data model. It shows the interactions among dimensions and fact tables.It is flexible for drilling down, rolling up along dimension hierarchy One of the major ...
... queries and analysis. The characteristics of the dimensional modeling are: It provide the way to access the data It is a query centric data model. It shows the interactions among dimensions and fact tables.It is flexible for drilling down, rolling up along dimension hierarchy One of the major ...
ASEAN Mineral Resources Information System using FOSS and
... Information System using Free and Open Source Software (FOSS) and the Open Geospatial Consortium (OGC) standards. The use of FOSS and OGC compliant standards aims to make the mineral resources information system cost efficient, interoperable and user friendly. The developed system is composed of 3 m ...
... Information System using Free and Open Source Software (FOSS) and the Open Geospatial Consortium (OGC) standards. The use of FOSS and OGC compliant standards aims to make the mineral resources information system cost efficient, interoperable and user friendly. The developed system is composed of 3 m ...
ch16
... communicating with that server from remote sites allowing the sharing of corporate data. Components of a mobile database environment include: corporate database server and DBMS that manages and stores the corporate data and provides corporate applications; remote database and DBMS that manages ...
... communicating with that server from remote sites allowing the sharing of corporate data. Components of a mobile database environment include: corporate database server and DBMS that manages and stores the corporate data and provides corporate applications; remote database and DBMS that manages ...
16 Java Database Connectivity
... Disconnected RowSet objects make a connection to a data source only to read in data from a ResultSet object or to write data back to the data source. The other four implementations are disconnected RowSet implementations. 1. A CachedRowSet object has all the capabilities of a JdbcRowSet object plus ...
... Disconnected RowSet objects make a connection to a data source only to read in data from a ResultSet object or to write data back to the data source. The other four implementations are disconnected RowSet implementations. 1. A CachedRowSet object has all the capabilities of a JdbcRowSet object plus ...
Chapter 12 - Personal Web Pages
... As the number of joins increases, the number of alternative plans grows rapidly; we need to restrict the search space. Left-deep trees allow us to generate all fully pipelined plans. Intermediate results not written to temporary files. Not all left-deep trees are fully pipelined ...
... As the number of joins increases, the number of alternative plans grows rapidly; we need to restrict the search space. Left-deep trees allow us to generate all fully pipelined plans. Intermediate results not written to temporary files. Not all left-deep trees are fully pipelined ...
Databases and MySQL in 21 minutes
... – select column-names from tables where condition ; select * from books; select name, adr from custs; select title, price from books where price > 50; select * from books where author = "Sedgewick"; select author, title from books where author like "S%"; select author, title from books order by auth ...
... – select column-names from tables where condition ; select * from books; select name, adr from custs; select title, price from books where price > 50; select * from books where author = "Sedgewick"; select author, title from books where author like "S%"; select author, title from books order by auth ...
FOSS4G2007_USACE_DhirenKhona
... Scaling commercial GIS software includes cost of licensing + increase in hardware/software + annual maintenance fees Cost of Ownership Cost ...
... Scaling commercial GIS software includes cost of licensing + increase in hardware/software + annual maintenance fees Cost of Ownership Cost ...
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"".