Ans) We can use the Teradata database in various ways, they are: As an Enterprise data warehousing, Active data warehousing, CRM, EBusiness, and Data marts. Ans) Yes, the users can perform this task, and generally for this, a process known as parsing is considered. Multiple heterogeneous destinations, as well as sources can be operated. Q60) Difference between PRIMARY KEY Constraints Versus UNIQUE Constraints in Teradata? Teradata Lowest Total Cost: Teradata is the only vendor, which provides the lowest total cost of ownership. Teradata Database removes all before change images from the transient journal after a transaction commits. Q82) Can you write a Columnar example code? It gives the interviewer the opportunity to learn more about whether you have the technical competencies and industry experience needed to fulfill the role. Only one AMP is actively involved in a Primary Index. 12) How can we check the version of Teradata that we are using currently? A Fact Table contains... What is Data warehouse? 8) If Fast Load Script fails and only the error tables are made available to you, then how will you restart? If there is no PRIMARY INDEX, PRIMARY KEY, or UNIQUE constraint defined in a CREATE TABLE statement, and the PrimaryIndexDefault parameter is set to either D or P, then Teradata Database defines the first index-eligible column defined for the table to be its primary index. Q39) Explain the TENACITY command in Teradata? According to research, Teradata has a market share of about 9.8%. Ans) DATABLOCKSIZE sets the maximum data block size for blocks that contain multiple rows. Ans) PPI stands for Partition Primary Index and is basically a feature used for storage purposes. Teradata is referred to as Relational database management system (RDBMS) that is used to drive the large Datawarehouse applications.Teradata was founded in the year 1979 and its headquarters is in San Diego, California. Primary Index has a limit of 64 tables/columns, whereas Primary Key does not have any limit. Depending on the task, a specific or all of them can be used for getting the outcomes. Ans) The permanent journal is a user-specified table that can be used to capture both before images and after images of Teradata Database transactions. Making the old file to run – Make sure that you do not completely drop the error tables. Ans: Teradata is A RDBMS(Relational Database Management system) with parallel processing. Generally, it acts as a direct link between them and enables clients to share information easily. Some of the ETL tools which are commonly used in Teradata are DataStage, Informatica, SSIS, etc. Then if a transaction fails for some reason, the before change image of any modified rows can be retrieved from the transient journal and written over the modifications, returning the row to the same state it was in before the transaction occurred. ... 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