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  2. Help:Table/Advanced - Wikipedia

    en.wikipedia.org/wiki/Help:Table/Advanced

    Currently, there does not seem to be a way to copy those tables to a wiki and keep styling such as colors (background or text color). It is possible to convert PDF tables to Excel and keep the colors. Or to HTML tables and keep the colors. But there does not seem to be a way to copy any of those colored tables (PDF, Excel, HTML, etc.) to a wiki.

  3. Help:Introduction to tables with Wiki Markup/1 - Wikipedia

    en.wikipedia.org/wiki/Help:Introduction_to...

    Tables are a common way of displaying data. This tutorial provides a guide to making new tables and editing existing ones. For guidelines on when and how to use tables, see the Manual of Style. The easiest way to insert a new table is to use the editing toolbar that appears when you edit a page (see image above).

  4. Help:Basic table markup - Wikipedia

    en.wikipedia.org/wiki/Help:Basic_table_markup

    For table markup, it can be applied to whole tables, table captions, table rows, and individual cells. CSS specificity in relation to content should be considered since applying it to a row could affect all that row's cells and applying it to a table could affect all the table's cells and caption, where styles closer to the content can override ...

  5. Expression index - Wikipedia

    en.wikipedia.org/wiki/Expression_index

    This allows indexes to be defined for common query conditions that depend on data in a table, but are not actually stored in that table. A common use for an expression index is to support case-insensitive searching or constraints. For example, if a web site wants to make user names case-insensitive, but still preserve the case as originally ...

  6. 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.

  7. PDF/A - Wikipedia

    en.wikipedia.org/wiki/PDF/A

    PDF is a standard for encoding documents in an "as printed" form that is portable between systems. However, the suitability of a PDF file for archival preservation depends on options chosen when the PDF is created: most notably, whether to embed the necessary fonts for rendering the document; whether to use encryption; and whether to preserve additional information from the original document ...

  8. Hash table - Wikipedia

    en.wikipedia.org/wiki/Hash_table

    In a well-dimensioned hash table, the average time complexity for each lookup is independent of the number of elements stored in the table. Many hash table designs also allow arbitrary insertions and deletions of key–value pairs, at amortized constant average cost per operation. [4] [5] [6] Hashing is an example of a space-time tradeoff.

  9. Search engine indexing - Wikipedia

    en.wikipedia.org/wiki/Search_engine_indexing

    The forward index is sorted to transform it to an inverted index. The forward index is essentially a list of pairs consisting of a document and a word, collated by the document. Converting the forward index to an inverted index is only a matter of sorting the pairs by the words. In this regard, the inverted index is a word-sorted forward index.