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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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For questions about issues arising when multiple users or processes concurrently access or modify shared information in a database system.
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part of MS SQL Server. It's a system database that functions as a storage area for temporary tables, internal objects and row versions.
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Command-Line Utility Program for Oracle
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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.
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a synchronous multi-master cluster.
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Storing, querying, and indexing spatial data (including geometric and geographic representations).
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For questions about timestamp data types and/or recording a particular point in time.
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a general-purpose, managed, garbage-collected, object-oriented programming language created by Microsoft.
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A sequential journal of database write operations that facilitates robust atomic write operations.
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a free tool for SQL & PL/SQL development and reporting similar to Quest's Toad or Allround Automations' PL/SQL Developer.
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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).
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In computing, ODBC (Open Database Connectivity) is a standard C programming language interface for accessing database management systems (DBMS).
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the primary interactive terminal for PostgreSQL. (DO NOT USE THIS TAG for questions targeting PostgreSQL!)
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'Extract, Transform and Load': Data load processing, normally in the context of data warehouse systems.
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Questions on how to import into, extract data from, or exchange data between databases in CSV format (plain text using commas to separate values).
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A function that partitions a result set and computes something within that partition without rolling up the data in that partition.
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An ongong check of various statistics and events, which can be used to spot telltale signs of underlying issues.
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directly relevant to the question and likely to be the source of your problem, not just because you're using a Java library to connect to a database. Java is an object-oriented lan…
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a database extension for PostgreSQL providing additional spatial types, indexes, functions, and aggregates.
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Data corruption refers to errors in computer data that occur during writing, reading, storage, transmission, or processing, which introduce unintended changes to the original data
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covers the topic of duplicated data and the strategies involved in removing the duplicates, often referred to as deduplication or simply dedupe.
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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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for questions related to products from Sybase Corporation - please also include the product tag, such as sybase-ase or sql-anywhere.
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a graphical administration and development tool for PostgreSQL.
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Generic MySQL version 5 tag. Please use a mysql-5.x tag instead. Also tag with mysql for search purposes.
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Defined like a view but holding persistent data like a table, Materialized Views are a feature of a number of RDBMSs including Oracle, DB2 and postgres. SQL Server has a similar feature called an Inde…
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A set of zero, one or more attributes, the value(s) of which are guaranteed to be unique for each tuple (row) in a relation.
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A set of permissions.
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A tool that reads and analyses event trace information from a database management system.
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Pretty much the worst thing you could do to a SQL Server database. In short: It sacrifices performance to gain space.
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Refers to the set of SQL Server Management Scripts created and maintained by Ola Hallengren. Questions tagged with this tag should be about how to use the scripts or about how to resolve an issue wit…
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For technical questions about the internal workings of the database engine.
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The set of rules that define the combinations of symbols that are considered to be correctly structured for that language.
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Combines two or more query results. UNION removes duplicates; UNION ALL retains all rows.