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  2. Data validation - Wikipedia

    en.wikipedia.org/wiki/Data_validation

    Data type validation is customarily carried out on one or more simple data fields. The simplest kind of data type validation verifies that the individual characters provided through user input are consistent with the expected characters of one or more known primitive data types as defined in a programming language or data storage and retrieval ...

  3. Unique identifier - Wikipedia

    en.wikipedia.org/wiki/Unique_identifier

    A unique identifier (UID) is an identifier that is guaranteed to be unique among all identifiers used for those objects and for a specific purpose. [1] The concept was formalized early in the development of computer science and information systems. In general, it was associated with an atomic data type.

  4. List of file signatures - Wikipedia

    en.wikipedia.org/wiki/List_of_file_signatures

    Slob (sorted list of blobs) is a read-only, compressed data store with dictionary-like interface [92] AC ED: ’: 0 Serialized Java Data [93] 43 72 65 61 74 69 76 65 20 56 6F 69 63 65 20 46 69 6C 65 1A 1A 00: Creative Voice File 0 voc Creative Voice file: 2E 73 6E 64.snd: 0 au snd Au audio file format: DB 0A CE 00: 0

  5. Universally unique identifier - Wikipedia

    en.wikipedia.org/wiki/Universally_unique_identifier

    A Universally Unique Identifier (UUID) is a 128-bit label used to uniquely identify objects in computer systems. The term Globally Unique Identifier (GUID) is also used, mostly in Microsoft systems. [1] [2] When generated according to the standard methods, UUIDs are, for practical purposes, unique.

  6. Verifications.io - Wikipedia

    en.wikipedia.org/wiki/Verifications.io

    The verifications.io data breach was discovered by security researchers Vinny Troia and Bob Diachenko in 2019. The first Verifications.io data breach ultimately led to 763 million unique records being exposed to the web, with the vast majority of records containing PII and marketing data on U.S. citizens.

  7. Checksum - Wikipedia

    en.wikipedia.org/wiki/Checksum

    A checksum is a small-sized block of data derived from another block of digital data for the purpose of detecting errors that may have been introduced during its transmission or storage. By themselves, checksums are often used to verify data integrity but are not relied upon to verify data authenticity. [1]

  8. Data integrity - Wikipedia

    en.wikipedia.org/wiki/Data_integrity

    An example of a data-integrity mechanism is the parent-and-child relationship of related records. If a parent record owns one or more related child records all of the referential integrity processes are handled by the database itself, which automatically ensures the accuracy and integrity of the data so that no child record can exist without a parent (also called being orphaned) and that no ...

  9. Data validation and reconciliation - Wikipedia

    en.wikipedia.org/wiki/Data_validation_and...

    Data reconciliation is a technique that targets at correcting measurement errors that are due to measurement noise, i.e. random errors.From a statistical point of view the main assumption is that no systematic errors exist in the set of measurements, since they may bias the reconciliation results and reduce the robustness of the reconciliation.