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 : surrogate key is nothing but a primary key,it gives a serial no. to all records.surrogate key is act's as a major role in type 2 scenario.if u have any updates to be applied on a database it will be directely effected on datawarehouse part(using surrogate ...
Data in a Database is a) Detailed or Transactional b) Both Readable and Writable. c) Current.
Latest Answer :        database                                                        dwh  1. it contains current data                 1. it contains current and historical data ...
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 : all r correct one only ...
ODBC : a) Poor Performance. b) Can be used for Variety of Databases. c) Can handle Stored Procedures. Plug-In: a) Good Performance. b) Database specific.(Only one database) c) Cannot handle Stored Procedures.
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 : This is how it can be doneDefine the xml file path in the administrator
Under environmental parameters, import the xml file metadata in the designer repository.Use a transformer stage (without an input link)Â to get this path in the server job.Use the ...
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 ...
