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  2. Select (SQL) - Wikipedia

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

    Select only then {rows} rows with filter: First Page: select only the first {rows} rows, depending on the type of database; Next Page: select only the first {rows} rows, depending on the type of database, where the {unique_key} is greater than {last_val} (the value of the {unique_key} of the last row in the current page)

  3. Pivot table - Wikipedia

    en.wikipedia.org/wiki/Pivot_table

    A pivot table is a table of values which are aggregations of groups of individual values from a more extensive table (such as from a database, spreadsheet, or business intelligence program) within one or more discrete categories. The aggregations or summaries of the groups of the individual terms might include sums, averages, counts, or other ...

  4. Imputation (statistics) - Wikipedia

    en.wikipedia.org/wiki/Imputation_(statistics)

    Because missing data can create problems for analyzing data, imputation is seen as a way to avoid pitfalls involved with listwise deletion of cases that have missing values. That is to say, when one or more values are missing for a case, most statistical packages default to discarding any case that has a missing value, which may introduce bias ...

  5. Days before Trump takes office, Mayorkas issues sweeping ...

    www.aol.com/news/days-trump-takes-office...

    The rule was issued after DHS last month added another nearly 65,000 H-2B visas through a different visa program for fiscal 2025 after already filling 66,000 H-2B visas.

  6. Top plays among the 'Magnificent 7' and Big Tech stocks as ...

    www.aol.com/finance/top-plays-among-magnificent...

    Analysts warn tariff risks coupled with a sluggish Chinese market could spell trouble for Apple — the second biggest contributor to the S&P last year behind Nvidia — and other hardware names.

  7. Missing data - Wikipedia

    en.wikipedia.org/wiki/Missing_data

    Generally speaking, there are three main approaches to handle missing data: (1) Imputation—where values are filled in the place of missing data, (2) omission—where samples with invalid data are discarded from further analysis and (3) analysis—by directly applying methods unaffected by the missing values. One systematic review addressing ...

  8. Honda recalls select Accords and HR-Vs over missing ... - AOL

    www.aol.com/news/honda-recalls-select-accords-hr...

    Honda is recalling select 2023-2024 Accord and HR-V vehicles due to a missing piece in the front seat belt pretensioners, which could increase injury risks during a crash. According to notices ...

  9. Database index - Wikipedia

    en.wikipedia.org/wiki/Database_index

    To process this statement without an index the database software must look at the last_name column on every row in the table (this is known as a full table scan). With an index the database simply follows the index data structure (typically a B-tree ) until the Smith entry has been found; this is much less computationally expensive than a full ...