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  2. Join (SQL) - Wikipedia

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

    Every part has a Part Type, and every supplier is based in the US, and has a State column. There are not more than 60 states+territories in the US, and not more than 300 Part Types. The bitmap join index is defined using a standard three-table join on the three tables above, and specifying the Part_Type and Supplier_State columns for the index.

  3. Select (SQL) - Wikipedia

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

    The derived table also is referred to as an inline view or a select in from list. In the following example, the SQL statement involves a join from the initial Books table to the derived table "Sales". This derived table captures associated book sales information using the ISBN to join to the Books table.

  4. T-code - Wikipedia

    en.wikipedia.org/wiki/T-code

    Here's an example of a transaction code written in ABAP, which is a programming language used in SAP systems: ``àbap DATA: lv_sender_account TYPE string, lv_recipient_account TYPE string, lv_amount TYPE p DECIMALS 2. lv_sender_account = '123456'. lv_recipient_account = '789012'. lv_amount = 100.00. START-OF-SELECTION. PERFORM transfer_funds.

  5. Relational algebra - Wikipedia

    en.wikipedia.org/wiki/Relational_algebra

    The right outer join ( ) behaves almost identically to the left outer join, but the roles of the tables are switched. The right outer join of relations R and S is written as R S. [e] The result of the right outer join is the set of all combinations of tuples in R and S that are equal on their common attribute names, in addition to tuples in S ...

  6. Sort-merge join - Wikipedia

    en.wikipedia.org/wiki/Sort-merge_join

    The sort-merge join (also known as merge join) is a join algorithm and is used in the implementation of a relational database management system. The basic problem of a join algorithm is to find, for each distinct value of the join attribute, the set of tuples in each relation which display that value. The key idea of the sort-merge algorithm is ...

  7. SAP NetWeaver - Wikipedia

    en.wikipedia.org/wiki/SAP_NetWeaver

    SAP NetWeaver is a software stack for many of SAP SE's applications.The SAP NetWeaver Application Server, sometimes referred to as WebAS, is the runtime environment for the SAP applications and all of the mySAP Business Suite runs on SAP WebAS: supplier relationship management (SRM), customer relationship management (CRM), supply chain management (SCM), product lifecycle management (PLM ...

  8. SAP R/3 - Wikipedia

    en.wikipedia.org/wiki/SAP_R/3

    SAP R/3 is the former name of the enterprise resource planning software produced by the German corporation SAP AG (now SAP SE). It is an enterprise-wide information system designed to coordinate all the resources, information, and activities needed to complete business processes such as order fulfillment , billing , human resource management ...

  9. Schema crosswalk - Wikipedia

    en.wikipedia.org/wiki/Schema_crosswalk

    Crosswalk tables are often employed within or in parallel to enterprise systems, especially when multiple systems are interfaced or when the system includes legacy system data. In the context of Interfaces, they function as an internal extract, transform, load (ETL) mechanism. For example, this is a metadata crosswalk from MARC standards to ...