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  2. Data cleansing - Wikipedia

    en.wikipedia.org/wiki/Data_cleansing

    Usually, data is sorted by a key that would bring duplicate entries closer together for faster identification. Statistical methods: By analyzing the data using the values of mean, standard deviation, range, or clustering algorithms, it is possible for an expert to find values that are unexpected and thus erroneous. Although the correction of ...

  3. AutoNumber - Wikipedia

    en.wikipedia.org/wiki/AutoNumber

    This is one example of occasion where the start value of an AutoNumber field is raised, so that customer number 6 has, say, AutoNumber field value 10006. [2] Using random values is desirable in cases where it would be unfortunate if it were possible to guess the next values assigned to new rows in the table. This usage is rare, however. [2]

  4. Duplicate code - Wikipedia

    en.wikipedia.org/wiki/Duplicate_code

    In computer programming, duplicate code is a sequence of source code that occurs more than once, either within a program or across different programs owned or maintained by the same entity. Duplicate code is generally considered undesirable for a number of reasons. [ 1 ]

  5. Computer-aided audit tools - Wikipedia

    en.wikipedia.org/wiki/Computer-aided_audit_tools

    For example, this could be used to find duplicate billings of invoices within the sales ledger. Matching (Fuzzy): Specifies whether the product supports finding matching items for a specific field using fuzzy comparison. For instance, values compared are similar but not exactly the same (e.g., using Levenshtein matching).

  6. 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).

  7. Data redundancy - Wikipedia

    en.wikipedia.org/wiki/Data_redundancy

    For instance, when customer data are duplicated and attached with each product bought, then redundancy of data is a known source of inconsistency since a given customer might appear with different values for one or more of their attributes. [4]

  8. Spreadsheet - Wikipedia

    en.wikipedia.org/wiki/Spreadsheet

    However, in Microsoft Excel, subroutines can write values or text found within the subroutine directly to the spreadsheet. The figure shows the Visual Basic code for a subroutine that reads each member of the named column variable x , calculates its square, and writes this value into the corresponding element of named column variable y .

  9. Hash function - Wikipedia

    en.wikipedia.org/wiki/Hash_function

    The value a is an appropriately chosen value that should be relatively prime to W; it should be large, [clarification needed] and its binary representation a random mix [clarification needed] of 1s and 0s. An important practical special case occurs when W = 2 w and M = 2 m are powers of 2 and w is the machine word size.