Tags
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.
should be used for questions regarding how to implement and troubleshoot supplemental indexes used primarily to enhance performance. The term nonclustered is typically a SQ…
Non-deterministic is a definition for an algorithm that isn't guaranteed to return the same result for multiple executions, even with the same input. Results can vary from run to run
Normalization is the process of organizing columns into tables within a relational database in such a way as to minimize redundancy and avoid insertion, update and deletion anomalies.
A catch-all term describing database systems using various non-relational models. Such systems are usually engineered to be high-performance.
Npgsql provides .NET based programs, written e.g. in C#, Visual Basic or F#, access to PostgreSQL databases via ADO.NET.
A database concept used to represent missing, unknown or inapplicable data.
NUMA refers to "Non-Uniform Memory Access", and is a technology for providing RAM that can be accessed faster by the local core or CPU than it can be by other cores present in the computer.
is the process of converting a numeric value into a string suitable for display. Things to take into account are the decimal/thousands separator, digit grouping, the shape of the numbers, how a percen…
NuoDB is a distributed database that supports SQL/ACID transactions, provides easy scalability and multitenancy.
In computing, ODBC (Open Database Connectivity) is a standard C programming language interface for accessing database management systems (DBMS).
ODP.NET is the Oracle Data Provider for Microsoft.Net (Dot Net).
A database state wherein the database is completely inaccessible. An offline database can be brought back online to resume access.
OFFSET and FETCH is the SQL Standard method of paging, and the standardized way to do LIMIT OFFSET
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…
On-Line Analytical Processing, a class of systems designed for fast calculation, reporting and analysis of aggregate figures.
OLE Automation Procedures (i.e. sp_OA*) is a feature of Microsoft SQL Server that allows for calling OLE Automation objects and COM-visible code from within T-SQL batches.
COM based database access API bundled into Windows by Microsoft.
Performing physical (e.g. index or DDL) operations with increased concurrency (reduced locking).
Ontology deals with entities and how they can be categorized and organized according to their attributes. This includes how metadata is modelled and interpreted.
OpenLDAP is a free, open source implementation of the Lightweight Directory Access Protocol (LDAP) developed by the OpenLDAP Project. It is released under its own BSD-style license called the OpenLDAP…
when referencing MongoDB's Ops Manager which allows DBAs and developers to manage MongoDB in a data center.
In the context of a database, optimisation refers to the process of the query optimiser selecting an efficient physical execution plan.
All versions of Oracle database. Add a version-specific tag like oracle-11g-r2 if that context is important in the question. Do not use for Oracle products such as applications or middleware or other …