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  2. Oracle Exadata - Wikipedia

    en.wikipedia.org/wiki/Oracle_Exadata

    As the platform has been around since 2008, Oracle has published information related to the end-of-support for older Exadata generations. In Oracle's published document titled Oracle Hardware and Systems Support Policies, [8] they mention "After five years from last ship date, replacement parts may not be available and/or the response times for sending replacement parts may be delayed."

  3. Oracle machine - Wikipedia

    en.wikipedia.org/wiki/Oracle_machine

    The oracle is queried with the number of times that this tape symbol appears on the work tape. If that number is in the oracle set, the next state is the YES state; if it is not, the next state is the NO state. [2] Another alternative definition makes the oracle tape read-only, and eliminates the ASK and RESPONSE states entirely.

  4. Logarithm - Wikipedia

    en.wikipedia.org/wiki/Logarithm

    Definition [ edit ] Given a positive real number b such that b ≠ 1 , the logarithm of a positive real number x with respect to base b [ nb 1 ] is the exponent by which b must be raised to yield x .

  5. Oracle Application Express - Wikipedia

    en.wikipedia.org/wiki/Oracle_Application_Express

    Oracle APEX has had many name changes since its inception in 2000, including: Flows [4] Oracle Platform [5] Project Marvel; HTML DB [6] Application Express (APEX) aka Oracle APEX [7] APEX was created by Mike Hichwa, a developer at Oracle, after the development of his previous project, WebDB, started to diverge from his original vision. Although ...

  6. Big O notation - Wikipedia

    en.wikipedia.org/wiki/Big_O_notation

    Big O notation is a mathematical notation that describes the limiting behavior of a function when the argument tends towards a particular value or infinity. Big O is a member of a family of notations invented by German mathematicians Paul Bachmann, [1] Edmund Landau, [2] and others, collectively called Bachmann–Landau notation or asymptotic notation.

  7. Oracle Database - Wikipedia

    en.wikipedia.org/wiki/Oracle_Database

    Oracle Database (commonly referred to as Oracle DBMS, Oracle Autonomous Database, or simply as Oracle) is a proprietary multi-model [4] database management system produced and marketed by Oracle Corporation. It is a database commonly used for running online transaction processing (OLTP), data warehousing (DW) and mixed (OLTP & DW) database ...

  8. Write-ahead logging - Wikipedia

    en.wikipedia.org/wiki/Write-ahead_logging

    In computer science, write-ahead logging (WAL) is a family of techniques for providing atomicity and durability (two of the ACID properties) in database systems. [1]A write ahead log is an append-only auxiliary disk-resident structure used for crash and transaction recovery.

  9. Relational database - Wikipedia

    en.wikipedia.org/wiki/Relational_database

    One well-known definition of what constitutes a relational database system is composed of Codd's 12 rules. However, no commercial implementations of the relational model conform to all of Codd's rules, [ 4 ] so the term has gradually come to describe a broader class of database systems, which at a minimum: