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.

For questions about specific error codes or messages, including troubleshooting.
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;…
Specifically for PostgreSQL version 9.5
336 questions
SQL Server Analysis Services, an OLAP server bundled with SQL Server by Microsoft since version 7.0
335 questions
A scheduled task managed by the database, for example using SQL Server Agent, Oracle dbms_job, or MySQL Event Scheduler.
334 questions
Establishing a connection to a database or database server.
331 questions
objects that contain statistical information about the distribution of values in one or more columns of a table or indexed view.
328 questions
Entity Relationship Diagram
319 questions
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…
PostgreSQL version 10
the default procedural language for the PostgreSQL database system. Questions about PL/pgSQL should probably be tagged "PostgreSQL" as well.
for questions specific to data types that contain both date and time parts.
313 questions
The conversion of data into a form that cannot be easily understood by unauthorized users.
312 questions
For questions about generating or using language scripts, for example scripting a database object definition.
307 questions
The process of identifying the party logging into a system.
Percona : MySQL open source fork with performance improvements
305 questions
alter an existing table object.
304 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…
304 questions
For questions about database user accounts.
304 questions
For questions about login credentials and accounts used to access a database resource, typically at the server or instance level.
the concept of moving services from one host or node to another in order to provide high availability in a computing system.
299 questions
For questions about the storage space used by databases or database objects.
299 questions
represent missing, unknown or inapplicable data.
296 questions
Transferring log records from a source database system to one or more destination systems.
291 questions
Acronym for Common Table Expression. Temporary, reusable subquery that may be recursive.
287 questions
PostgreSQL version 9.1
286 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.
281 questions
MySQL version 5.1 - please also tag with mysql for search purposes.
280 questions
MySQL version 8.0 - please also tag with mysql for search purposes.
the practice of logically dividing or partitioning data, usually using a specific key (referred to as a shard key), and then placing that data on separate hosts (subsequently known as shar…
274 questions
part of MS SQL Server. It's a system database that functions as a storage area for temporary tables, internal objects and row versions.
a set of rules that determine how data is sorted and compared for comparing characters in a character set.
272 questions
SQL Server 2000 (major build version 8.00.xxxx). Please also tag sql-server.
271 questions
The process and means of extracting data from a database for use elsewhere.
265 questions
For questions about the persistent storage of database data.
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).
260 questions
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