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2. Database storage structures - Wikipedia

   en.wikipedia.org/wiki/Database_storage_structures

   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; less well suited to relatively stable files – in this case, ISAM is more efficient

3. Flat-file database - Wikipedia

   en.wikipedia.org/wiki/Flat-file_database

   A flat-file database is a database stored in a file called a flat file. Records follow a uniform format, and there are no structures for indexing or recognizing relationships between records. The file is simple. A flat file can be a plain text file (e.g. csv, txt or tsv), or a binary file. Relationships can be inferred from the data in the ...

4. Architecture of Btrieve - Wikipedia

   en.wikipedia.org/wiki/Architecture_of_Btrieve

   The Btrieve file format consists entirely of pages, which is the data that moves between memory and storage media when the engine performs an I/O operation. Versions prior to 6.0 merely used data pages, index pages and a file control record (FCR). The file had an index for searching that linked to physical pages.

5. .dbf - Wikipedia

   en.wikipedia.org/wiki/.dbf

   The "modern dBASE" III+–V is the most common dBASE file format found in the wild. In "modern dBASE", a .dbf file consists of a header, the data records, and the end-of-file marker. The header contains information about the file, such as the number of records and the number of types of fields used in the records. The records contain the actual ...

6. Database model - Wikipedia

   en.wikipedia.org/wiki/Database_model

   A database model is a type of data model that determines the logical structure of a database. It fundamentally determines in which manner data can be stored, organized and manipulated. The most popular example of a database model is the relational model , which uses a table-based format.

7. 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 ).

8. Hierarchical database model - Wikipedia

   en.wikipedia.org/wiki/Hierarchical_database_model

   A hierarchical database model is a data model in which the data is organized into a tree-like structure. The data are stored as records which is a collection of one or more fields . Each field contains a single value, and the collection of fields in a record defines its type .

9. cdb (software) - Wikipedia

   en.wikipedia.org/wiki/Cdb_(software)

   A database contains an entire data set (e.g. a single associative array) in a single computer file. It consists of three parts: a fixed-size header, data, and a set of hash tables. Lookups are designed for exact keys only, though other types of searches could be performed by scanning the entire database.