 Related Questions Data Modelling is Broadly classified into 2 types. a) E-R Diagrams (Entity - Relatioships). b) Dimensional Modelling. Latest Answer : Dimension modelling means to define a datawarehouse architecture using any one of the availabale schemadimensionl modelling are 3 types 1. conceptual model 2. logical model3.physical modelconceptual model: gathering of all the requirementslogical ... Surrogate Key is a Primary Key for a Dimension table. Most importance of using it is it is independent of underlying database. i.e Surrogate Key is not affected by the changes going on with a database. Latest Answer : Primary Key does not allow data duplications for actual source data. We cannot maintain historical data of each record using PK.SID acts as a primary key in target WH systems, that allows data duplications and maintains complete historical data along ... Data in a Database is a) Detailed or Transactional b) Both Readable and Writable. c) Current. Latest Answer : Database data is in the form of OLTP and Data warehouse data will be in the form of OLAP. OLTP is for transactional process and OLAP is for Analysis purpose. ... Fact table - Table with Collection of Foreign Keys corresponding to the Primary Keys in Dimensional table. Consists of fields with numeric values. Dimension table - Table with Unique Primary Key. Load Latest Answer : __________________ _______________ ________________|_________________| |______________ ... Stage Variable - An intermediate processing variable that retains value during read and doesnt pass the value into target column. Derivation - Expression that specifies value to be passed on to the target Latest Answer : Stage variables: StageVariables are the buffes with in the transformer stage , wher you can braekup the complex calculations into simple, This can be used with that stage..an simple ex is if you wanna calculate b^2-4ac.. it can be defined ... By using "ExcecSH" command at Before/After job properties. Latest Answer : You can specify the ExecDos Prompt in the after or before job routine. ... Link Partitioner : It actually splits data into various partitions or data flows using various partition methods . Link Collector : It collects the data coming from partitions, merges it into a single Latest Answer : server jobs mainly execute the jobs in sequential fashion,the ipc stage as well as link partioner and link collector will simulate the parllel mode of execution over the sever jobs having single cpu Link Partitioner : It receives data on a single input ... Latest Answer : XML files can be read using FOLDER stage followed by XML input stage in server jobs. ... Latest Answer : The question itself is a little ambiguous to me. I think the answer to the question might be, we will place some conditions like 'where' inside the OCI stage and the rejected rows can be obtained as shown in the example below:1) Say, there are ... Latest Answer : Data Will transfer very quickly to the Data Warehouse by using SQL Loader. ...
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