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  2. Table (database) - Wikipedia

    en.wikipedia.org/wiki/Table_(database)

    In a database, a table is a collection of related data organized in table format; consisting of columns and rows.. In relational databases, and flat file databases, a table is a set of data elements (values) using a model of vertical columns (identifiable by name) and horizontal rows, the cell being the unit where a row and column intersect. [1]

  3. Database schema - Wikipedia

    en.wikipedia.org/wiki/Database_schema

    The database schema is the structure of a database described in a formal language supported typically by a relational database management system (RDBMS). The term " schema " refers to the organization of data as a blueprint of how the database is constructed (divided into database tables in the case of relational databases ).

  4. Column (database) - Wikipedia

    en.wikipedia.org/wiki/Column_(database)

    The word 'field' is normally used interchangeably with 'column'. [5] However, database perfectionists tend to favor using 'field' to signify a specific cell of a given row. [citation needed] This is to enable accuracy in communicating with other developers. Columns (really column names) being referred to as field names (common for each row ...

  5. Database object - Wikipedia

    en.wikipedia.org/wiki/Database_object

    A database object is a structure for storing, managing and presenting application- or user-specific data in a database. Depending on the database management system (DBMS), many different types of database objects can exist. [1] [2] The following is a list of the most common types of database objects found in most relational databases (RDBMS):

  6. Relational database - Wikipedia

    en.wikipedia.org/wiki/Relational_database

    Most relational database designs resolve many-to-many relationships by creating an additional table that contains the PKs from both of the other entity tables – the relationship becomes an entity; the resolution table is then named appropriately and the two FKs are combined to form a PK. The migration of PKs to other tables is the second ...

  7. Schema crosswalk - Wikipedia

    en.wikipedia.org/wiki/Schema_crosswalk

    A schema crosswalk is a table that shows equivalent elements (or "fields") in more than one database schema.It maps the elements in one schema to the equivalent elements in another.

  8. Database storage structures - Wikipedia

    en.wikipedia.org/wiki/Database_storage_structures

    Index is a full index so data file does not have to be ordered; Pros and cons versatile data structure – sequential as well as random access; access is fast; supports exact, range, part key and pattern matches efficiently. volatile files are handled efficiently because index is dynamic – expands and contracts as table grows and shrinks

  9. Outline of databases - Wikipedia

    en.wikipedia.org/wiki/Outline_of_databases

    Database normalization – process of organizing the fields and tables of a relational database to minimize redundancy and dependency. Database refactoring – simple change to a database schema that improves its design while retaining both its behavioral and informational semantics.