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  2. Microsoft Office password protection - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office_password...

    In Excel and Word 95 and prior editions a weak protection algorithm is used that converts a password to a 16-bit verifier and a 16-byte XOR obfuscation array [1] key. [4] Hacking software is now readily available to find a 16-byte key and decrypt the password-protected document. [5] Office 97, 2000, XP and 2003 use RC4 with 40 bits. [4]

  3. Record locking - Wikipedia

    en.wikipedia.org/wiki/Record_locking

    In a SQL database, a record is typically called a "row". The introduction of granular (subset) locks creates the possibility for a situation called deadlock. Deadlock is possible when incremental locking (locking one entity, then locking one or more additional entities) is used. To illustrate, if two bank customers asked two clerks to obtain ...

  4. File locking - Wikipedia

    en.wikipedia.org/wiki/File_locking

    For example, a lock file might govern access to a set of related resources, such as several different files, directories, a group of disk partitions, or selected access to higher level protocols like servers or database connections. When using lock files, care must be taken to ensure that operations are atomic. To obtain a lock, the process ...

  5. Microsoft Office - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Office

    Word, Excel, and PowerPoint on the web can all natively open, edit, and save Office Open XML files (docx, xlsx, pptx) as well as OpenDocument files (odt, ods, odp). They can also open the older Office file formats (doc, xls, ppt), but will be converted to the newer Open XML formats if the user wishes to edit them online. Other formats cannot be ...

  6. Microsoft Data Access Components - Wikipedia

    en.wikipedia.org/wiki/Microsoft_Data_Access...

    Recordsets can also be updated in one of three ways: via an immediate update, via a batch update, [16] or through the use of transactions: Immediate: The recordset is locked using the adLockOptimistic or adLockPessimistic lock. The data are updated at the data source after the record is changed and the Update method is called.

  7. Two-phase locking - Wikipedia

    en.wikipedia.org/wiki/Two-phase_locking

    A transaction is allowed to write an object if and only if it is holding a write-lock on that object. A schedule (i.e., a set of transactions) is allowed to hold multiple locks on the same object simultaneously if and only if none of those locks are write-locks. If a disallowed lock attempts on being held simultaneously, it will be blocked.

  8. Wikipedia:Protection policy - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Protection_policy

    Fully edit-protected pages are also implicitly move-protected. As with full edit protection, protection because of edit warring should not be considered an endorsement of the current name. When move protection is applied during a requested move discussion, the page should be protected at the location it was at when the move request was started.

  9. Online analytical processing - Wikipedia

    en.wikipedia.org/wiki/Online_analytical_processing

    OLAP clients include many spreadsheet programs like Excel, web application, SQL, dashboard tools, etc. Many clients support interactive data exploration where users select dimensions and measures of interest. Some dimensions are used as filters (for slicing and dicing the data) while others are selected as the axes of a pivot table or pivot chart.