A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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Specifies the type of data being stored (string, date, numeric, etc).
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A database system optimised for reporting, particularly in aggregate. Often, but not always implemented using a star schema.
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A declarative mechanism such as a check or foreign key that enforces some data integrity rule in a database.
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specifically for PostgreSQL version 9.2
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a desktop and server operating system based on Debian GNU/Linux. Note that http://askubuntu.com is specifically dedicated to Ubuntu questions.
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Reconstructing a database.
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A catch-all term describing database systems using various non-relational models. Such systems are usually engineered to be high-performance.
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describe when a `SELECT` statement is used as part of a larger SQL statement. The larger statement may be DML and is always found within brackets or parenthesis.
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A popular open-source embeddable (i.e. non client-server) RDBMS implemented as a C library.
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a visual database design tool that is developed by MySQL. It is the successor application of the DBDesigner4 project.
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SQL Server Reporting Services, a web based reporting tool produced by Microsoft and bundled with SQL Server.
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Short for 'eXtensible Markup Language.' A textual markup language for transferring structured data.
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MySQL 5.6 : Latest Release of MySQL with improvements that enhance every functional area of the database kernel.
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an open source tool written in PHP to handle administration of MySQL over the web. It can perform various tasks such as creating, modifying or deleting databases, tables, fields or rows;…
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a web service that makes it easy to set up, operate, and scale a relational database in the cloud.
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A function performs some specified work, usually taking parameters as input. In terms of databases these may be specific to SQL or to the database vendor.
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GROUP BY : SQL Aggregation for Common Values
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The strategy selected by the query optimiser to process a query.
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Upgrade refers to the replacement of a product with a newer version of the same product. - replace (a software program) with a more recently released, enhanced version. - replace (a hardware devic…
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SQL Server Analysis Services, an OLAP server bundled with SQL Server by Microsoft since version 7.0
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In the database structured query language (SQL), the DELETE statement removes one or more records from a table.
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In the context of a database, maintenance describes routine operational tasks around a database system, such as monitoring, tuning and backup procedures.
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A sequential journal of database write operations that facilitates robust atomic write operations.
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Combining multiple data points into a single data point. This usually is used in reference to SQL and usually to an aggregate function of some sort.
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The process of identifying the party logging into a system.
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Database restoring refers to the concept of restore a database from a backup or a copy.
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A type of replication in SQL Server in which Publishers and Subscribers can work autonomously and later reconnect, synchronize, and merge data changes to achieve convergence among all nodes in the top…
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A clause used in SQL SELECT statements to sort query results.
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Permissions associated with, or required for, an operation on a database system.
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The automated periodic distribution of transactional changes from a publishing database to one or more subscriber databases.
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a Windows service installed with the SQL Server Standard Edition and above. It provides an automated way of executing or performing administrative task against a SQL Server instanc…
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The process and means of extracting data from a database for use elsewhere.
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Performance tuning done by adjusting database parameters or physical layout of the database.
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an object-oriented language and runtime environment. Java programs can run unchanged on most platforms in a Virtual Machine called the JVM.
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High-availability technologies mask the effects of hardware or software failure, so that perceived downtime for users and applications is minimized.
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Improving the performance characteristics of a database application or system.