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2. Query plan - Wikipedia

   en.wikipedia.org/wiki/Query_plan

   A query plan (or query execution plan) is a sequence of steps used to access data in a SQL relational database management system. This is a specific case of the relational model concept of access plans. Since SQL is declarative, there are typically many alternative ways to execute a given query, with widely varying performance.

3. Database administration - Wikipedia

   en.wikipedia.org/wiki/Database_administration

   Database administration is the function of managing and maintaining database management systems (DBMS) software. Mainstream DBMS software such as Oracle , IBM Db2 and Microsoft SQL Server need ongoing management.

4. Database design - Wikipedia

   en.wikipedia.org/wiki/Database_design

   Database design is the organization of data according to a database model. The designer determines what data must be stored and how the data elements interrelate. With this information, they can begin to fit the data to the database model. [1] A database management system manages the data accordingly.

5. Database - Wikipedia

   en.wikipedia.org/wiki/Database

   Formally, a "database" refers to a set of related data accessed through the use of a "database management system" (DBMS), which is an integrated set of computer software that allows users to interact with one or more databases and provides access to all of the data contained in the database (although restrictions may exist that limit access to particular data).

6. Data management - Wikipedia

   en.wikipedia.org/wiki/Data_management

   Data management comprises all disciplines related to handling data as a valuable resource, it is the practice of managing an organization's data so it can be analyzed for decision making. [ 1 ] Concept

7. Data management plan - Wikipedia

   en.wikipedia.org/wiki/Data_management_plan

   A data management plan or DMP is a formal document that outlines how data are to be handled both during a research project, and after the project is completed. [1] The goal of a data management plan is to consider the many aspects of data management, metadata generation, data preservation, and analysis before the project begins; [2] this may lead to data being well-managed in the present ...