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2. 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 ...

3. Apache Cassandra - Wikipedia

   en.wikipedia.org/wiki/Apache_Cassandra

   cassandra.apache.org. Apache Cassandra is a free and open-source, distributed, wide-column store, NoSQL database management system designed to handle large amounts of data across a multitude of commodity servers, providing high availability with no single point of failure. Cassandra supports clusters and spanning of multiple data centers [ 2 ...

4. Database model - Wikipedia

   en.wikipedia.org/wiki/Database_model

   The inverted file data model can put indexes in a set of files next to existing flat database files, in order to efficiently directly access needed records in these files. Notable for using this data model is the ADABAS DBMS of Software AG, introduced in 1970. ADABAS has gained considerable customer base and exists and supported until today.

5. Database - Wikipedia

   en.wikipedia.org/wiki/Database

   Database. An SQL select statement and its result. In computing, a database is an organized collection of data or a type of data store based on the use of a database management system (DBMS), the software that interacts with end users, applications, and the database itself to capture and analyze the data. The DBMS additionally encompasses the ...

6. ADABAS - Wikipedia

   en.wikipedia.org/wiki/ADABAS

   ADABAS. Adabas, a contraction of “adaptable database system," [1][2] is a database package that was developed by Software AG to run on IBM mainframes. It was launched in 1971 as a non-relational [3] database. As of 2019, Adabas is marketed [4] for use on a wider range of platforms, including Linux, Unix, and Windows. [5]

7. Table (database) - Wikipedia

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

   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 ...