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  2. TPL Tables - Wikipedia

    en.wikipedia.org/wiki/TPL_Tables

    TPL Tables automatically formats table output according to the table specification, available names and labels, and default settings. Tables can be created in PostScript or as text. Additional format features allow control of such things as page size, table orientation and column widths Rows or columns can be deleted, and labels and titles can ...

  3. Category:Database index techniques - Wikipedia

    en.wikipedia.org/wiki/Category:Database_index...

    Pages in category "Database index techniques" The following 32 pages are in this category, out of 32 total. This list may not reflect recent changes. ...

  4. Database index - Wikipedia

    en.wikipedia.org/wiki/Database_index

    A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes and storage space to maintain the index data structure. Indexes are used to quickly locate data without having to search every row in a database table every time said table is accessed.

  5. Tuple relational calculus - Wikipedia

    en.wikipedia.org/wiki/Tuple_relational_calculus

    The formulas are defined given a database schema S = (D, R, h) and a partial function type : V ⇸ 2 C, called at type assignment, that assigns headers to some tuple variables. We then define the set of atomic formulas A [ S , type ] with the following rules:

  6. Table Producing Language - Wikipedia

    en.wikipedia.org/wiki/Table_Producing_Language

    Table Producing Language was an IBM mainframe program developed by the US Bureau of Labor Statistics for producing statistical tables. It has been superseded by the commercial product TPL Tables developed by QQQ Software .

  7. Block Range Index - Wikipedia

    en.wikipedia.org/wiki/Block_Range_Index

    A Block Range Index or BRIN is a database indexing technique. They are intended to improve performance with extremely large [ i ] tables. BRIN indexes provide similar benefits to horizontal partitioning or sharding but without needing to explicitly declare partitions.

  8. Outline of databases - Wikipedia

    en.wikipedia.org/wiki/Outline_of_databases

    The following is provided as an overview of and topical guide to databases: Database – organized collection of data, today typically in digital form. The data are typically organized to model relevant aspects of reality (for example, the availability of rooms in hotels), in a way that supports processes requiring this information (for example, finding a hotel with vacancies).

  9. Tablespace - Wikipedia

    en.wikipedia.org/wiki/Tablespace

    A tablespace is a storage location where the actual data underlying database objects can be kept. It provides a layer of abstraction between physical and logical data, [1] and serves to allocate storage for all DBMS managed segments. (A database segment is a database object which occupies physical space such as table data and indexes.) Once ...