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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Reconstructing a database.
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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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A database system optimised for reporting, particularly in aggregate. Often, but not always implemented using a star schema.
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Specifies the type of data being stored (string, date, numeric, etc).
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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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MySQL Workbench : MySQL's Open Source GUI for Assisted DB Administration
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A popular open-source embeddable (i.e. non client-server) RDBMS implemented as a C library.
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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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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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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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an open source RDBMS that is designed to be a "drop-in" replacement for MySQL.
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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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Short for 'eXtensible Markup Language.' A textual markup language for transferring structured data.
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PostgreSQL 9.3 : 2013 release of PostgreSQL
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The strategy selected by the query optimiser to process a query.
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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 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 web service that makes it easy to set up, operate, and scale a relational database in the cloud.
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A sequential journal of database write operations that facilitates robust atomic write operations.
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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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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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In the database structured query language (SQL), the DELETE statement removes one or more records from a table.
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Database restoring refers to the concept of restore a database from a backup or a copy.
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The process of identifying the party logging into a system.
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GROUP BY : SQL Aggregation for Common Values
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A clause used in SQL SELECT statements to sort query results.
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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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MySQL 5.6 : Latest Release of MySQL with improvements that enhance every functional area of the database kernel.
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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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A type of index mostly used in SQL-Server, which aligns the data of a table with the index.
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Can refer to disks in a RAID-1 configuration, or low-latency database replication strategies.
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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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represent missing, unknown or inapplicable data.