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  2. Pivot table - Wikipedia

    en.wikipedia.org/wiki/Pivot_table

    The fields that would be created will be visible on the right hand side of the worksheet. By default, the pivot table layout design will appear below this list. Pivot Table fields are the building blocks of pivot tables. Each of the fields from the list can be dragged on to this layout, which has four options: Filters; Columns; Rows; Values

  3. Digest access authentication - Wikipedia

    en.wikipedia.org/wiki/Digest_access_authentication

    The "response" value is calculated in three steps, as follows. Where values are combined, they are delimited by colons. The MD5 hash of the combined username, authentication realm and password is calculated. The result is referred to as HA1. The MD5 hash of the combined method and digest URI is calculated, e.g. of "GET" and "/dir/index.html ...

  4. Virtual column - Wikipedia

    en.wikipedia.org/wiki/Virtual_column

    In relational databases a virtual column is a table column whose value(s) is automatically computed using other columns values, or another deterministic expression. Virtual columns are defined of SQL:2003 as Generated Column, [1] and are only implemented by some DBMSs, like MariaDB, SQL Server, Oracle, PostgreSQL, SQLite and Firebird (database server) (COMPUTED BY syntax).

  5. Microsoft Access - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Access

    One can set up joins by clicking and dragging fields in tables to fields in other tables. Access allows users to view and manipulate the SQL code if desired. Any Access table, including linked tables from different data sources, can be used in a query. Access also supports the creation of "pass-through queries".

  6. AutoNumber - Wikipedia

    en.wikipedia.org/wiki/AutoNumber

    AutoNumber is a type of data used in Microsoft Access tables to generate an automatically incremented numeric counter. It may be used to create an identity column which uniquely identifies each record of a table. Only one AutoNumber is allowed in each table. The data type was called Counter in Access 2.0. [1]

  7. The race to reproduce DeepSeek's market-breaking AI has begun

    www.aol.com/race-reproduce-deepseeks-market...

    The cost was calculated based on its use of H800 GPUs, ... "DeepSeek is one example." ... it's a full-circle moment. The whole field started as open-source, so seeing efforts to make a leading ...

  8. Spreadsheet - Wikipedia

    en.wikipedia.org/wiki/Spreadsheet

    Animation of a simple spreadsheet that multiplies values in the left column by 2, then sums the calculated values from the right column to the bottom-most cell. In this example, only the values in the A column are entered (10, 20, 30), and the remainder of cells are formulas.

  9. Database index - Wikipedia

    en.wikipedia.org/wiki/Database_index

    In the phone book example with a composite index created on the columns (city, last_name, first_name), if we search by giving exact values for all the three fields, search time is minimal—but if we provide the values for city and first_name only, the search uses only the city field to retrieve all matched records.