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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A cluster consists of a group of computers connected so that in many respects they can be viewed as a single system.
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The choice of settings for hardware, firmware, software or other components of a database system.
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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 database system optimised for reporting, particularly in aggregate. Often, but not always implemented using a star schema.
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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 catch-all term describing database systems using various non-relational models. Such systems are usually engineered to be high-performance.
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Specifies the type of data being stored (string, date, numeric, etc).
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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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A declarative mechanism such as a check or foreign key that enforces some data integrity rule in a database.
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mysql-5 : Version of MySQL Starting with MySQL 5.0
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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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SQL Server Reporting Services, a web based reporting tool produced by Microsoft and bundled with SQL Server.
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GROUP BY : SQL Aggregation for Common Values
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Reconstructing a database.
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specifically for PostgreSQL version 9.2
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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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SQL Server Analysis Services, an OLAP server bundled with SQL Server by Microsoft since version 7.0
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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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In the database structured query language (SQL), the DELETE statement removes one or more records from a table.
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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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The strategy selected by the query optimiser to process a query.
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Short for 'eXtensible Markup Language.' A textual markup language for transferring structured data.
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a new feature of SQL Server 2012 that provide continuous data synchronization, automatic failover and secondary read access for one or many SQL Server databases.
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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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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 data structure that organizes information into rows and columns.
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For questions about database backups.
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Improving the performance characteristics of a database application or system.
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The automated distribution of transactional changes from a publishing database to one or more subscriber databases.
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A sequential journal of database write operations that facilitates robust atomic write operations.
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The process of identifying the party logging into a system.
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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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The process and means of extracting data from a database for use elsewhere.
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Permissions associated with, or required for, an operation on a database system.
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alter an existing table object.
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A clause used in SQL SELECT statements to sort query results.