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Results for data mart


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Database Data Warehousing Guide, 11g Release 2 (11.2)

Glossary

data martfinance. In a dependent data mart, the data can be derived from an enterprise-wide data warehouse. In … an independent data mart, data can be collected directly from sources. … A data warehouse that is designed for a particular line of business, such

Database Data Warehousing Guide, 11g Release 2 (11.2)

Transportation in Data Warehouses

Transportable Tablespaces Example Suppose that you have a data warehouse containing sales data, and…example, the tablespace ts_temp_sales could contain multiple tables. For example, perhaps the data mart … The current month's data must be placed into a separate tablespace in order to be transported. In … this example, you have a tablespace ts_temp_sales, which holds a copy of the current month's data … . Using

Database Data Warehousing Guide, 11g Release 2 (11.2)

Transportation in Data Warehouses

Step 3   Copy the Datafiles and Export File to the Target Systemdata mart platform, using any transportation mechanism for flat files. Once the datafiles have been … Copy the data files that make up ts_temp_sales, as well as the export file jan_sales.dmp to the

Database Data Warehousing Guide, 11g Release 2 (11.2)

Transportation in Data Warehouses

Step 4   Import the MetadataOnce the files have been copied to the data mart, the metadata should be imported into the datamart. You can incorporate this new data into the data mart's tables. You can insert the data from … a permanent part of the data mart.

Warehouse Builder Data Modeling ETL, and Data Quality Guide,, 11g Release 2 (11.2)

Creating Relational Data Objects

2 Creating Relational Data ObjectsAfter you finish designing your data warehouse or data mart, you are ready to design your target … system. This chapter shows you how to create relational data objects.

Database Data Warehousing Guide, 11g Release 2 (11.2)

Transportation in Data Warehouses

Overview of Transportation in Data Warehousesdata warehouse to a data mart Transportation is often one of the simpler portions of the ETL process … Transportation is the operation of moving data from one system to another system. In a data … warehouse environment, the most common requirements for transportation are in moving data

Database PL/SQL Language Reference, 11g Release 2 (11.2)

Overview of PL/SQL

Data AbstractionData abstraction lets you work with the essential properties of data without being too involved … with details. You can design a data structure first, and then design algorithms that manipulate it … . Topics Cursors Composite Variables %ROWTYPE Attribute %TYPE Attribute Abstract Data Types Cursors A … always of

Database Data Warehousing Guide, 11g Release 2 (11.2)

Basic Materialized Views

Loading Data into Data WarehousesA popular and efficient way to load data into a data warehouse or data mart is to use SQL*Loader … with the DIRECT or PARALLEL option, Data Pump, or to use another loader tool that uses the Oracle … -phase. In one-phase loading, data is loaded directly into the target table, quality

Database PL/SQL Language Reference, 11g Release 2 (11.2)

PL/SQL Data Types

SQL Data TypesThe PL/SQL data types include the SQL data types. For information about the SQL data types, see … Oracle Database SQL Language Reference —all information there about data types and subtypes, data type … comparison rules, data conversion, literals, and format models applies to both SQL

Database PL/SQL Language Reference, 11g Release 2 (11.2)

PL/SQL Collections and Records

Data Type CompatibilityYou can assign a collection to a collection variable only if they have the same data type. Having … element type, VARCHAR(15). Collection variables group1 and group2 have the same data type, triplet, but … collection variable group3 has the data type trio. The assignment of group1 to group2 succeeds, but … the assignment of group1

Database PL/SQL Language Reference, 11g Release 2 (11.2)

PL/SQL Data Types

BOOLEAN Data TypeThe PL/SQL data type BOOLEAN stores logical values, which are the Boolean values TRUE and FALSE and … expression. For details, see \"BOOLEAN Expressions\". Because SQL has no data type equivalent to BOOLEAN

Database Data Warehousing Guide, 11g Release 2 (11.2)

Hardware and I/O Considerations in Data Warehouses

Configure I/O for Bandwidth not Capacity, consider a 200GB data mart. Using 72GB drives, this data mart could be built with as few as six drives … Storage configurations for a data warehouse should be chosen based on the I/O bandwidth that they … data, but cannot provide the same I/O throughput as a larger number of small

Database Data Warehousing Guide, 11g Release 2 (11.2)

Extraction in Data Warehouses

Extraction Through Distributed Operationstable in a data mart, country_city, and populates it with data from the countries and customers tables … Extracting into Flat Files Using SQL*Plus The most basic technique for extracting data is to … customized format. Note that, using the external table data pump unload facility, you can also extract

Database Data Warehousing Guide, 11g Release 2 (11.2)

Transportation in Data Warehouses

Transportation Using Transportable Tablespacesa staging database to a data warehouse, or in moving data from a data warehouse to a data mart. … Oracle transportable tablespaces are the fastest way for moving large volumes of data between two … Oracle databases. Previous to the introduction of transportable tablespaces, the most

Database Data Warehousing Guide, 11g Release 2 (11.2)

Database Data Warehousing Guide - Contents

ContentsConventions What's New in Oracle Database? Oracle Database 11g Release 2 (11.2) New Features in Data … Warehousing Oracle Database 11g Release 1 (11.1) New Features in Data Warehousing Part I Concepts 1 … Data Warehousing Concepts What is a Data Warehouse? Subject Oriented Integrated Nonvolatile Time … Variant

Database Data Warehousing Guide, 11g Release 2 (11.2)

Advanced Materialized Views

Rolling Materialized Viewsdata mart contains a time dimension, it is often desirable to archive the oldest information and … and then repopulate the partition with new data. Oracle Database uses this variant of fast refresh … or list partitioned. PCT refresh is nonatomic. Rolling Materialized Views When a data warehouse or … maintenance

Database Data Warehousing Guide, 11g Release 2 (11.2)

Basic Materialized Views

Overview of Materialized View Management Taskslonger useful. After the initial effort of creating and populating the data warehouse or data mart, the … materialized views should be dropped. Archiving old detail and materialized view data that is no … incremental changes from the operational systems. Transforming the data. Verifying that the incremental

Database PL/SQL Language Reference, 11g Release 2 (11.2)

PL/SQL Static SQL

Fetching Data with Cursor Variablesstatement, which works as described in \"Fetching Data with Explicit Cursors\". The return type of the … a variable whose value is a query. Example 6-26 Fetching Data with Cursor Variables DECLARE cv

Database PL/SQL Language Reference, 11g Release 2 (11.2)

PL/SQL Data Types

3 PL/SQL Data TypesEvery PL/SQL constant, variable, parameter, and function return value has a data type that … determines its storage format and its valid values and operations. This chapter explains scalar data types … , which store values with no internal components. For information about composite data types, see … Chapter 5, \"PL/SQL Collections

Database PL/SQL Language Reference, 11g Release 2 (11.2)

PL/SQL Data Types

PLS_INTEGER and BINARY_INTEGER Data TypesThe PL/SQL data types PLS_INTEGER and BINARY_INTEGER are identical. For simplicity, this document … uses PLS_INTEGER to mean both PLS_INTEGER and BINARY_INTEGER. The PLS_INTEGER data type stores signed … data type has these advantages over the NUMBER data type and NUMBER subtypes: PLS_INTEGER values