GIS and Remote Sensing in Water Resources Management
... – High speed access to large databases – Easy to update- (to add or delete new nodes) • Disadvantages – Links are only possible in Vertical Direction (from top to bottom) but not for horizontal or diagonal unless they have same parents. – For example, it is hard to find what is the relation between ...
... – High speed access to large databases – Easy to update- (to add or delete new nodes) • Disadvantages – Links are only possible in Vertical Direction (from top to bottom) but not for horizontal or diagonal unless they have same parents. – For example, it is hard to find what is the relation between ...
IPD - SQL Server - Best IT Document Solutions
... Analysis Services. Microsoft SQL Server Analysis Services (SSAS) supports OLAP (online analytical processing) and data mining functionalities. This allows a database administrator to design and create multidimensional structures that contain data aggregated from other data sources, such as relatio ...
... Analysis Services. Microsoft SQL Server Analysis Services (SSAS) supports OLAP (online analytical processing) and data mining functionalities. This allows a database administrator to design and create multidimensional structures that contain data aggregated from other data sources, such as relatio ...
Serial benchmarks in Mysql, Oracle and PostgreSQL
... The MySQL software is Dual Licensed. Users can choose to use the MySQL software as an Open s Source product under the terms of the GNU General Public License or can purchase a standard commercial license from MySQL AB. The company name was given after co-founder Monty Widenius's daughter, My, the S ...
... The MySQL software is Dual Licensed. Users can choose to use the MySQL software as an Open s Source product under the terms of the GNU General Public License or can purchase a standard commercial license from MySQL AB. The company name was given after co-founder Monty Widenius's daughter, My, the S ...
lecture6
... an array and not a scalar int mysql_affected_rows ($conn) This function returns the number of rows that were affected by the most recently executed INSERT, UPDATE, REPLACE or DELETE query (i.e. if the number of rows you expected to be updated were actually updated) ...
... an array and not a scalar int mysql_affected_rows ($conn) This function returns the number of rows that were affected by the most recently executed INSERT, UPDATE, REPLACE or DELETE query (i.e. if the number of rows you expected to be updated were actually updated) ...
parallel execution fundamental
... parallel statement in alternating colors, making the identification of boundaries of units of work and where data has to be redistributed easier. Whenever data is distributed from producers to consumers you will see an entry of the form :TQxxxxx (Table Queue x) in the NAME column as data output. Ple ...
... parallel statement in alternating colors, making the identification of boundaries of units of work and where data has to be redistributed easier. Whenever data is distributed from producers to consumers you will see an entry of the form :TQxxxxx (Table Queue x) in the NAME column as data output. Ple ...
DTS
... DTS is a set of objects and utilities that allow the automation of extract, transform and load operations to and from database. DTS also allows data to be transformed and loaded from heterogeneous sources using OLE DB, ODBC or text-only files into any supported database. DTS is included with M ...
... DTS is a set of objects and utilities that allow the automation of extract, transform and load operations to and from database. DTS also allows data to be transformed and loaded from heterogeneous sources using OLE DB, ODBC or text-only files into any supported database. DTS is included with M ...
vCenter Configuration Manager Backup and Disaster
... compliance with your corporate policies and standards. As a SQL Server database administrator, you are responsible for conforming to your own corporate backup, recovery, and maintenance plans. Use the maintenance plan that you create in addition to other database integrity and re-indexing maintenanc ...
... compliance with your corporate policies and standards. As a SQL Server database administrator, you are responsible for conforming to your own corporate backup, recovery, and maintenance plans. Use the maintenance plan that you create in addition to other database integrity and re-indexing maintenanc ...
OLTP performance comparison: Solid-state drives vs. hard disk drives
... SSD tests, we tested six 32GB Intel X25-E Extreme SATA solid-state drives that we placed directly in the existing server drive slots, which connect to the built-in RAID controller. For both tests, we used a server with four six-core Intel Xeon X7460 processors at 2.66 GHz and 8 GB of RAM. We ran a s ...
... SSD tests, we tested six 32GB Intel X25-E Extreme SATA solid-state drives that we placed directly in the existing server drive slots, which connect to the built-in RAID controller. For both tests, we used a server with four six-core Intel Xeon X7460 processors at 2.66 GHz and 8 GB of RAM. We ran a s ...
Why Migrate from MySQL to Cassandra? White Paper BY DATASTAX CORPORATION June 2012
... Before continuing with a discussion on why it might be necessary to either develop new applications or migrate existing MySQL systems to another database platform, it first makes sense to understand why staying with MySQL as a database service may be the right choice. Because database migrations in ...
... Before continuing with a discussion on why it might be necessary to either develop new applications or migrate existing MySQL systems to another database platform, it first makes sense to understand why staying with MySQL as a database service may be the right choice. Because database migrations in ...
Package 'dplyr'
... A tbl. All main verbs are S3 generics and provide methods for tbl_df, tbl_dt and tbl_sql. ...
... A tbl. All main verbs are S3 generics and provide methods for tbl_df, tbl_dt and tbl_sql. ...
Plug-ins MOUNT10 V7 Sailfish R2 User Manual
... The list of the available SQL databases is populated in the left-hand pane as sub-notes of the selected instance, from where you can select the database that you want to backup. If you select the entire section, all databases will be included, as well as any new databases created. Select the databas ...
... The list of the available SQL databases is populated in the left-hand pane as sub-notes of the selected instance, from where you can select the database that you want to backup. If you select the entire section, all databases will be included, as well as any new databases created. Select the databas ...
Integrating MicroStrategy Analytics Platform with Oracle
... A block is smallest unit of disk I/O for database software file system. Database software are written to store a table data in contiguous data blocks, whenever possible. Larger data blocks mean fewer I/O calls from database for a full table scan. E.g. database with 4K block size requires 1024 I/O ca ...
... A block is smallest unit of disk I/O for database software file system. Database software are written to store a table data in contiguous data blocks, whenever possible. Larger data blocks mean fewer I/O calls from database for a full table scan. E.g. database with 4K block size requires 1024 I/O ca ...
CLI/ODBC programming
... specifically for DB2 have to be modified (and in some cases, be completely rewritten) before they can interact with other relational database management systems (RDBMSs). Because this limitation exists with every embedded SQL application, regardless of which RDBMS it was written for, in the early 19 ...
... specifically for DB2 have to be modified (and in some cases, be completely rewritten) before they can interact with other relational database management systems (RDBMSs). Because this limitation exists with every embedded SQL application, regardless of which RDBMS it was written for, in the early 19 ...
Active Storage For Large-Scale Data Mining and
... in storage devices is available directly for application-specific function in addition to supporting these existing storage-specific optimizations. Instead of etching database functions into silicon as envisioned 15 years ago, Active Disks are programmed in software and use general purpose microproc ...
... in storage devices is available directly for application-specific function in addition to supporting these existing storage-specific optimizations. Instead of etching database functions into silicon as envisioned 15 years ago, Active Disks are programmed in software and use general purpose microproc ...
What is Marklogic?
... unstructured data that allows you to store, manage, query and search across JSON, XML, RDF (Triplestore), Geospatial data, text, and large binaries. With Marklogic one can handle data in a schema-agnostic fashion or built in application server and leads to faster time-to-results. It provides capabil ...
... unstructured data that allows you to store, manage, query and search across JSON, XML, RDF (Triplestore), Geospatial data, text, and large binaries. With Marklogic one can handle data in a schema-agnostic fashion or built in application server and leads to faster time-to-results. It provides capabil ...
Mirror, Mirror on the Wall, What is the Best Database
... programmer providing callback methods that the parser invokes when parsing a document DOM - random-access protocol, which converts an XML document into a collection of in-memory objects Plugability Layer - standardizes access to SAX/DOM by providing “Factory” methods for creating and configuring SAX ...
... programmer providing callback methods that the parser invokes when parsing a document DOM - random-access protocol, which converts an XML document into a collection of in-memory objects Plugability Layer - standardizes access to SAX/DOM by providing “Factory” methods for creating and configuring SAX ...
Database as a Service: Challenges & Opportunities
... Slides adapted from a presentation by B. Reinwald VLDB 2010 Tutorial ...
... Slides adapted from a presentation by B. Reinwald VLDB 2010 Tutorial ...
transaction
... • Let S and S´ be two schedules with the same set of transactions. S and S´ are view equivalent if the following three conditions are met: 1. For each data item Q, if transaction Ti reads the initial value of Q in schedule S, then transaction Ti must, in schedule S´, also read the initial value of Q ...
... • Let S and S´ be two schedules with the same set of transactions. S and S´ are view equivalent if the following three conditions are met: 1. For each data item Q, if transaction Ti reads the initial value of Q in schedule S, then transaction Ti must, in schedule S´, also read the initial value of Q ...
Relational model
The relational model for database management is an approach to managing data using a structure and language consistent with first-order predicate logic, first described in 1969 by Edgar F. Codd. In the relational model of a database, all data is represented in terms of tuples, grouped into relations. A database organized in terms of the relational model is a relational database.The purpose of the relational model is to provide a declarative method for specifying data and queries: users directly state what information the database contains and what information they want from it, and let the database management system software take care of describing data structures for storing the data and retrieval procedures for answering queries.Most relational databases use the SQL data definition and query language; these systems implement what can be regarded as an engineering approximation to the relational model. A table in an SQL database schema corresponds to a predicate variable; the contents of a table to a relation; key constraints, other constraints, and SQL queries correspond to predicates. However, SQL databases deviate from the relational model in many details, and Codd fiercely argued against deviations that compromise the original principles.