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  2. Template:Remove last word - Wikipedia

    en.wikipedia.org/wiki/Template:Remove_last_word

    This template removes the last word of the first parameter, i.e. the last non-space token after the last space. Use |1= for the first parameter if the string may contain an equals sign (=). By default, words are delimited by spaces, but the optional parameter |sep= can set the separator to any character.

  3. SQLSTATE - Wikipedia

    en.wikipedia.org/wiki/SQLSTATE

    In addition to SQLSTATE the SQL command GET DIAGNOSTICS offers more details about the last executed SQL command. In very early versions of the SQL standard the return code was called SQLCODE and used a different coding schema.

  4. Help:Sortable tables - Wikipedia

    en.wikipedia.org/wiki/Help:Sortable_tables

    Sorting then becomes alphanumeric. Empty cell is treated as "zero" when sorting numerically. In date sorting mode, this text needs to be put in a separate column; in the case of a cell containing a range of dates or numbers (e.g. from .. to ..), text in surplus of what is required for sorting is put in the extra column. If the first part of the ...

  5. Delete character - Wikipedia

    en.wikipedia.org/wiki/Delete_character

    The delete control character (also called DEL or rubout) is the last character in the ASCII repertoire, with the code 127. [1] It is supposed to do nothing and was designed to erase incorrect characters on paper tape. It is denoted as ^? in caret notation and is U+007F in Unicode.

  6. SQL - Wikipedia

    en.wikipedia.org/wiki/SQL

    SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd [12] in the early 1970s. [13] This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasirelational database management system, System R, which a group at IBM San ...

  7. Soundex - Wikipedia

    en.wikipedia.org/wiki/Soundex

    The following algorithm is followed by most SQL languages (excluding PostgreSQL [example needed]): Save the first letter. Map all occurrences of a, e, i, o, u, y, h, w. to zero(0) Replace all consonants (include the first letter) with digits as in [2.] above. Replace all adjacent same digits with one digit, and then remove all the zero (0) digits

  8. Levenshtein distance - Wikipedia

    en.wikipedia.org/wiki/Levenshtein_distance

    A more efficient method would never repeat the same distance calculation. For example, the Levenshtein distance of all possible suffixes might be stored in an array , where [] [] is the distance between the last characters of string s and the last characters of string t. The table is easy to construct one row at a time starting with row 0.

  9. Hash function - Wikipedia

    en.wikipedia.org/wiki/Hash_function

    Simplistic hash functions may add the first and last n characters of a string along with the length, or form a word-size hash from the middle 4 characters of a string. This saves iterating over the (potentially long) string, but hash functions that do not hash on all characters of a string can readily become linear due to redundancies ...