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2. Superkey - Wikipedia

   en.wikipedia.org/wiki/Superkey

   A candidate key (or minimal superkey) is a superkey that can't be reduced to a simpler superkey by removing an attribute. [ 3 ] For example, in an employee schema with attributes employeeID , name , job , and departmentID , if employeeID values are unique then employeeID combined with any or all of the other attributes can uniquely identify ...

3. List of PDF software - Wikipedia

   en.wikipedia.org/wiki/List_of_PDF_software

   Open source multi-backend library for viewing and manipulating PDF files. Bundled with a viewer with the same name for the X Window System. PDF Studio: Proprietary: Yes Yes Software for viewing and editing PDF documents Inkscape: GNU GPL: Yes Technically not a PDF editor, but can be used as such page by page Adobe Reader: Proprietary freeware Yes

4. Super key - Wikipedia

   en.wikipedia.org/wiki/Super_key

   Download as PDF; Printable version ... move to sidebar hide. Super key may refer to: Super key (keyboard button) ... modifier key on keyboards; Superkey, database ...

5. Super key (keyboard button) - Wikipedia

   en.wikipedia.org/wiki/Super_key_(keyboard_button)

   A Super key, located between the Control key and the Alt key, on an ISO style PC keyboard. Super key ( ) is an alternative name for what is commonly labelled as the Windows key [1] or Command key [2] on modern keyboards, typically bound and handled as such by Linux and BSD operating systems and software today.

6. Candidate key - Wikipedia

   en.wikipedia.org/wiki/Candidate_key

   A candidate key, or simply a key, of a relational database is any set of columns that have a unique combination of values in each row, with the additional constraint that removing any column could produce duplicate combinations of values. A candidate key is a minimal superkey, [1] i.e., a superkey that does not contain a smaller one. Therefore ...

7. Comparison of database administration tools - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_database...

   Visual schema/E-R design: the ability to draw entity-relationship diagrams for the database. If missing, the following two features will also be missing; Reverse engineering - the ability to produce an ER diagram from a database, complete with foreign key relationships

8. Comparison of text editors - Wikipedia

   en.wikipedia.org/wiki/Comparison_of_text_editors

   Symbol database: Database of functions, variable and type definitions, macro definitions etc. in all the files belonging to the software being developed. The database can be created by the editor itself or by an external program such as ctags. The database can be used to instantly locate the definition even if it is in another file.

9. Programmer's File Editor - Wikipedia

   en.wikipedia.org/wiki/Programmer's_File_Editor

   Programmer's File Editor (PFE) is a freeware text editor targeted particularly to the needs of software programmers. [2] [3] It was written by Alan Phillips of Lancaster University in the north of England. Development of Programmer's File Editor ceased in 1999, but the program is still in use by some programmers.