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  2. Help:Creating tables - Wikipedia

    en.wikipedia.org/wiki/Help:Creating_tables

    Edit and move columns and rows in Calc. To drag a column first select it by clicking its header number. Then press and hold the ALT key. Then click a data cell, and drag the column to a new location. Or right click and delete the selected column (no need for ALT key). Rows are similarly moved (with the ALT key pressed), or deleted. Sort as ...

  3. Help:Tables and locations - Wikipedia

    en.wikipedia.org/wiki/Help:Tables_and_locations

    See Help:Table/Advanced#Copy column to table. Add or remove the District of Columbia (D.C.) as necessary. Make sure the two lists are in identical order with the same number of rows. Be sure the lists are in matching alphabetical order (whether by abbreviations or full names). You can work in your sandbox. Open both tables below to see ...

  4. Record linkage - Wikipedia

    en.wikipedia.org/wiki/Record_linkage

    Record linkage (also known as data matching, data linkage, entity resolution, and many other terms) is the task of finding records in a data set that refer to the same entity across different data sources (e.g., data files, books, websites, and databases).

  5. Approximate string matching - Wikipedia

    en.wikipedia.org/wiki/Approximate_string_matching

    Common applications of approximate matching include spell checking. [5] With the availability of large amounts of DNA data, matching of nucleotide sequences has become an important application. [1] Approximate matching is also used in spam filtering. [5] Record linkage is a common application where records from two disparate databases are matched.

  6. Set operations (SQL) - Wikipedia

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

    In SQL the UNION clause combines the results of two SQL queries into a single table of all matching rows. The two queries must result in the same number of columns and compatible data types in order to unite. Any duplicate records are automatically removed unless UNION ALL is used.

  7. Help:Conditional expressions - Wikipedia

    en.wikipedia.org/wiki/Help:Conditional_expressions

    See also: the {{}} template. The #if function selects one of two alternatives based on the truth value of a test string. {{#if: test string | value if true | value if false}} As explained above, a string is considered true if it contains at least one non-whitespace character.

  8. Fix problems sending AOL Mail

    help.aol.com/articles/aol-mail-troubleshooting

    If you're having problems sending mail, there are a few troubleshooting steps you can take to fix the problem. Restart your computer:. If you haven't shut down your computer in a while, we recommend that you begin troubleshooting by restarting your computer.

  9. Compressed pattern matching - Wikipedia

    en.wikipedia.org/wiki/Compressed_pattern_matching

    In computer science, compressed pattern matching (abbreviated as CPM) is the process of searching for patterns in compressed data with little or no decompression. Searching in a compressed string is faster than searching an uncompressed string and requires less space.