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.

PL/pgSQL is the default procedural language for PostgreSQL. Questions about PL/pgSQL should probably be tagged [PostgreSQL] as well.
383 questions
A scheduled task managed by the database, for example using SQL Server Agent, Oracle dbms_job, or MySQL Event Scheduler.
381 questions
Entity Relationship Diagram
380 questions
phpMyAdmin is 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;…
376 questions
Establishing a connection to a database or database server.
375 questions
Statistics for query optimization are objects that contain statistical information about the distribution of values in one or more columns of a table or indexed view.
374 questions
Best practices are generally and informally recognized as the methods and processes that have been shown over time to be superior to those achieved by other means.
365 questions
Short for 'eXtensible Markup Language.' A textual markup language for transferring structured data.
364 questions
The conversion of data into a form that cannot be easily understood by unauthorized users.
364 questions
Windows PowerShell™ is a task-based command-line shell and scripting language designed especially for automation of Windows tasks. Questions using this tag should restrict themselves to interactions d…
360 questions
For questions about database mirroring - a technology used to create and maintain an exact copy of a database, synchronously or asynchronously.
358 questions
Specifically for PostgreSQL version 9.5
356 questions
for questions specific to data types that contain both date and time parts.
354 questions
PostgreSQL version 10
351 questions
SQL Server Analysis Services, an OLAP server bundled with SQL Server by Microsoft since version 7.0
350 questions
Acronym for Common Table Expression. Temporary, reusable subquery that may be recursive.
349 questions
Failover is the concept of moving services from one host or node to another in order to provide high availability in a computing system.
347 questions
SQL statement used to alter an existing table object.
346 questions
For questions about the storage space used by databases or database objects.
340 questions
For questions about database user accounts.
339 questions
For questions about generating or using language scripts, for example scripting a database object definition.
338 questions
A database concept used to represent missing, unknown or inapplicable data.
336 questions
Use this for problems that involve returning one or more rows from each group in a data set. Despite the name, this tag is suitable for *minimum-* and *maximum-* per group queries.
332 questions
Percona : MySQL open source fork with performance improvements
331 questions
The process of identifying the party logging into a system.
329 questions
For questions about login credentials and accounts used to access a database resource, typically at the server or instance level.
325 questions
Questions related to date or date-related functions, data-types, representations (how dates might be stored and displayed) and operations (such as subtracting dates, adding intervals to dates).
323 questions
Transferring log records from a source database system to one or more destination systems.
321 questions
Determining what database product best fits the requirements and limitations in a specific situation. This is advice that generally requires much more insight into requirements than can easily be gle…
321 questions
A collation is a set of rules that determine how data is sorted and compared for comparing characters in a character set.
psql is the primary interactive terminal for PostgreSQL. (DO NOT USE THIS TAG for questions targeting PostgreSQL!)
317 questions
A type of index mostly used in SQL-Server, which aligns the data of a table with the index.
309 questions
TempDB is part of MS SQL Server. It's a system database that functions as a storage area for temporary tables, internal objects and row versions.
307 questions
A function that partitions a result set and computes something within that partition without rolling up the data in that partition.
MySQL version 5.1 - please also tag with mysql for search purposes.
305 questions
RMAN is Short for Recovery Manager is an Oracle command line tool for doing backup, restore, and recovery operations. Also tag RMAN questions with the appropriate Oracle version tag.
302 questions
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