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  2. Set operations (SQL) - Wikipedia

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

    For purposes of row elimination and duplicate removal, the EXCEPT operator does not distinguish between NULLs. The EXCEPT ALL operator does not remove duplicates, but if a row appears X times in the first query and Y times in the second, it will appear max ( X − Y , 0 ) {\displaystyle \max(X-Y,0)} times in the result set.

  3. Referential integrity - Wikipedia

    en.wikipedia.org/wiki/Referential_integrity

    Also, self-references are possible (not fully implemented in MS SQL Server though [5]). On inserting a new row into the referencing table, the relational database management system (RDBMS) checks if the entered key value exists in the referenced table. If not, no insert is possible.

  4. Help:Creating tables - Wikipedia

    en.wikipedia.org/wiki/Help:Creating_tables

    To move the header row(s) back up to the top: Select the entire row(s). To select the entire row(s) click on the Calc numbered columns located on the far left of any sheet. Press and hold ALT key. Left click and hold any cell within that section (row numbers won't work). Using the mouse drag and drop the source row(s) to its destination.

  5. Select (SQL) - Wikipedia

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

    SQL includes operators and functions for calculating values on stored values. SQL allows the use of expressions in the select list to project data, as in the following example, which returns a list of books that cost more than 100.00 with an additional sales_tax column containing a sales tax figure calculated at 6% of the price.

  6. SQL Server Management Objects - Wikipedia

    en.wikipedia.org/wiki/SQL_Server_Management_Objects

    SQL Server Management Objects (SMO) are .NET objects introduced by Microsoft as of Microsoft SQL Server 2005, designed to allow for easy and simple programmatic management of Microsoft SQL Server. [1] Using SMO, .NET programmers can design applications similar in functionality to Microsoft's SQL Server Management Studio.

  7. Wikipedia:Editor's index to Wikipedia - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Editor's_index_to...

    Duplicate images – tool to show duplicate files between Wikipedia and Commons (at the toolserver) Push-for-commons – tool to show a set of images from a wikipedia, helping to find license problems, {} candidates, and images that should be copied/moved to the commons (at the toolserver) RSS feeds:

  8. Wikipedia:Village pump (technical)/Archive 131 - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Village_pump...

    The team is also working on support for adding rows and columns to tables, and early work for this may appear within the month. Please comment on the design at Mediawiki.org . In the future, real-time collaborative editing may be possible in VisualEditor.

  9. Wikipedia:Reference desk/Archives/Miscellaneous/June 2006 ...

    en.wikipedia.org/wiki/Wikipedia:Reference_desk/...

    While I can find the setting for minimum font size, what I really want is to duplicate the effect of the Ctrl+"+" hotkey which enlarges all text, preserving the relative font sizes. Unfortunately, said hotkey isn't persistent across browser sessions.