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  2. List of SQL reserved words - Wikipedia

    en.wikipedia.org/wiki/List_of_SQL_reserved_words

    Reserved words in SQL and related products In SQL:2023 [3] In IBM Db2 13 [4] In Mimer SQL 11.0 [5] In MySQL 8.0 [6] In Oracle Database 23c [7] In PostgreSQL 16 [1] In Microsoft SQL Server 2022 [2]

  3. Wildcard character - Wikipedia

    en.wikipedia.org/wiki/Wildcard_character

    In SQL, wildcard characters can be used in LIKE expressions; the percent sign % matches zero or more characters, and underscore _ a single character. Transact-SQL also supports square brackets ([and ]) to list sets and ranges of characters to match, a leading caret ^ negates the set and matches only a character not within the list.

  4. Help:Creating tables - Wikipedia

    en.wikipedia.org/wiki/Help:Creating_tables

    Then uncheck the regex box, and replace the spaces inside the numbers with commas. Then paste the text and number columns next to each other again. If you have a simple list (not in a table) and you want to replace spaces with commas or periods, you can paste the list into a text editor (Notepad for example). Use replace (from edit menu in ...

  5. 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

  6. Select (SQL) - Wikipedia

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

    SELECT list is the list of columns or SQL expressions to be returned by the query. This is approximately the relational algebra projection operation. AS optionally provides an alias for each column or expression in the SELECT list. This is the relational algebra rename operation. FROM specifies from which table to get the data. [3]

  7. replace (command) - Wikipedia

    en.wikipedia.org/wiki/Replace_(command)

    The replace command first appeared in MS-DOS 3.2 [2] and has been included in most versions of MS-DOS and compatibles such as FreeDOS [3] and PTS-DOS. [4] DR DOS 6.0 includes an implementation of the replace command. [5] The FreeDOS version was developed by Rene Ableidinger and is licensed under the GPL. [6]

  8. Template:Replace - Wikipedia

    en.wikipedia.org/wiki/Template:Replace

    Returns string with the first n occurrences of target replaced with replacement. Omitting count will replace all occurrences. Space counts as a character if placed in any of the first three parameters.

  9. Trino (SQL query engine) - Wikipedia

    en.wikipedia.org/wiki/Trino_(SQL_query_engine)

    Trino is an open-source distributed SQL query engine designed to query large data sets distributed over one or more heterogeneous data sources. [1] Trino can query data lakes that contain a variety of file formats such as simple row-oriented CSV and JSON data files to more performant open column-oriented data file formats like ORC or Parquet [2] [3] residing on different storage systems like ...