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  2. Case sensitivity - Wikipedia

    en.wikipedia.org/wiki/Case_sensitivity

    File names: Traditionally, Unix-like operating systems treat file names case-sensitively while Microsoft Windows is case-insensitive but, for most file systems, case-preserving. For more details, see below. Variable names: Some programming languages are case-sensitive for their variable names while others are not. For more details, see below.

  3. Flat-file database - Wikipedia

    en.wikipedia.org/wiki/Flat-file_database

    Example of a flat file model [1] A flat-file database is a database stored in a file called a flat file. Records follow a uniform format, and there are no structures for indexing or recognizing relationships between records. The file is simple. A flat file can be a plain text file (e.g. csv, txt or tsv), or a binary file. Relationships can be ...

  4. Help:Table/Advanced - Wikipedia

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

    Normally, copying and pasting columns or rows removes the inline CSS styling such as cell colors. There is a way to break up a table (a too-wide table for example) into more tables without losing all the background colors, and other inline styling. Copy the table to 2 sandboxes (or one sandbox, and in the article itself).

  5. Hash function - Wikipedia

    en.wikipedia.org/wiki/Hash_function

    For example, if the input is 123 456 789 and the hash table size 10 000, then squaring the key produces 15 241 578 750 190 521, so the hash code is taken as the middle 4 digits of the 17-digit number (ignoring the high digit) 8750. The mid-squares method produces a reasonable hash code if there is not a lot of leading or trailing zeros in the key.

  6. Help:Advanced table formatting - Wikipedia

    en.wikipedia.org/wiki/Help:Advanced_table_formatting

    However, the table margins, border and font-size must be precisely set to match a typical image display. The File-spec parameter |thumb (although auto-thumbnailing to user-preference width) forces a wide left-margin that squeezes the nearby text, so the parameter |center can be added to suppress the

  7. Schema matching - Wikipedia

    en.wikipedia.org/wiki/Schema_matching

    The terms schema matching and mapping are often used interchangeably for a database process. For this article, we differentiate the two as follows: schema matching is the process of identifying that two objects are semantically related (scope of this article) while mapping refers to the transformations between the objects. For example, in the ...

  8. Help:Sortable tables - Wikipedia

    en.wikipedia.org/wiki/Help:Sortable_tables

    For example; when there are two rows of headers, the bottom row will always have the sorting icons, as explained previously. If there are problems sorting a column, forcing a particular data type often helps. Be specific. If the column is currency, force that data type, not number. The following (case-insensitive) values are valid for data-sort ...

  9. Help:Tables and locations - Wikipedia

    en.wikipedia.org/wiki/Help:Tables_and_locations

    On this smaller file use the "Pivot Table" method described in the previous section to put the dates as column heads. Select all from the edit menu. Then click on the "Pivot Table" command from the Insert menu. Click OK in the popup box. In the next dialog box drag "Date reported" to the "Column Fields" box, and drag "Country" to the "Row ...