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  2. QUEL query languages - Wikipedia

    en.wikipedia.org/wiki/QUEL_query_languages

    QUEL is a relational database query language, based on tuple relational calculus, with some similarities to SQL.It was created as a part of the Ingres DBMS effort at University of California, Berkeley, based on Codd's earlier suggested but not implemented Data Sub-Language ALPHA.

  3. List of column-oriented DBMSes - Wikipedia

    en.wikipedia.org/wiki/List_of_column-oriented_DBMSes

    Time series database: Greenplum Database C Support and extensions available from VMware. MapD: C++ MariaDB ColumnStore C & C++ Formerly Calpont InfiniDB: Metakit: C++ MonetDB: C Open-source (since 2004) columnar Relational DBMS pioneer PostgreSQL cstore fdw, [1] vops [2] C cstore_fdw uses ORC format StarRocks Java & C++

  4. Paradox (database) - Wikipedia

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

    dBASE for Windows came out too late to be a significant player in the Windows market: most dBASE programmers by then had migrated to Microsoft FoxBASE, a very similar database tool. Borland itself retained the InterBase/IDAPI server and focused efforts on its Delphi tools, which over the years gave it an influential but small part of the data ...

  5. LibreOffice Base - Wikipedia

    en.wikipedia.org/wiki/LibreOffice_Base

    LibreOffice Base is a free and open-source database development and administration tool for relational database management systems that is part of the LibreOffice office suite. LibreOffice Base was built off of a fork of OpenOffice.org and was first released as version 3.4.0.1 on October 4, 2011.

  6. Query by Example - Wikipedia

    en.wikipedia.org/wiki/Query_by_Example

    Query by Example (QBE) is a database query language for relational databases. It was devised by Moshé M. Zloof at IBM Research during the mid-1970s, in parallel to the development of SQL. [1] It is the first graphical query language, using visual tables where the user would enter commands, example elements and conditions.

  7. Condition (SQL) - Wikipedia

    en.wikipedia.org/wiki/Condition_(SQL)

    In addition to basic equality and inequality conditions, SQL allows for more complex conditional logic through constructs such as CASE, COALESCE, and NULLIF. The CASE expression, for example, enables SQL to perform conditional branching within queries, providing a mechanism to return different values based on evaluated conditions. This logic ...

  8. Borland Database Engine - Wikipedia

    en.wikipedia.org/wiki/Borland_Database_Engine

    Local SQL lets you use SQL to query "local" standard database tables that do not reside on a database server as well as "remote" DBMS servers. Local SQL is also essential to make multi-table queries across both local standard tables and those on remote SQL servers. The older name for the BDE API is the "Integrated Database Application Program ...

  9. cdb (software) - Wikipedia

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

    The records are followed by a set of 256 hash tables of varying lengths. Since zero is a valid length, there may be fewer than 256 hash tables physically stored in the database, but there are nonetheless considered to be 256 tables. Hash tables contain a series of slots, each of which contains a hash value and a record offset.