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 Related Questions 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 ... 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. 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 ... What are other Performance tunings you have done in your last project to increase the performance of What are other Performance tunings you have done in your last project to increase the performance of slowly running jobs? Staged the data coming from ODBC/OCI/DB2UDB stages or any database on the server using Hash/Sequential files for optimum performance also for data recovery in case job aborts.Tuned the OCI stage for 'Array Does the selection of 'Clear the table and Insert rows' in the ODBC stage send a Truncate statement to the DB or does it do some kind of Delete logic. There is no TRUNCATE on ODBC stages. It is Clear table blah blah and that is a delete from statement. On an OCI stage such as Oracle, you do have both Clear and Truncate options. They are radically different Scenario based Question ........... Suppose that 4 job control by the sequencer like (job 1, job 2, job 3, job 4 )if job 1 have 10,000 row ,after run the job only 5000 data has been loaded in target table remaining are not loaded and your job going to be aborted then.. How can short out the problem. Suppose job sequencer synchronies or control 4 job but job 1 have problem, in this condition should go director and check it what type of problem showing either data type problem, warning massage, job View Question | Asked by : Mukesh Kumar Madhav Latest Answer : There is a lock for update option in Hashed File Stage, which locks the hashed file for updating when the search key in the lookup is not found. ... Read Answers (2) | Asked by : ashish How can I connect my DB2 database on AS400 to DataStage? Do I need to use ODBC 1st to open the database connectivity and then use an adapter for just connecting between the two? Thanks alot of any replies. Read Answers (2) | Asked by : cy Tags : AS400
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