Questions

What is control file in Informatica?

What is control file in Informatica?

The Data Integration Service can update the column metadata for the flat file based on a control file. A control file is a simple text file with a field name, data type, precision, and scale. Each line in the control file contains one column of data.

What is ETL explain in detail?

ETL is a process in Data Warehousing and it stands for Extract, Transform and Load. It is a process in which an ETL tool extracts the data from various data source systems, transforms it in the staging area, and then finally, loads it into the Data Warehouse system.

What are major steps in ETL process?

At its most basic, the ETL process encompasses data extraction, transformation, and loading. While the abbreviation implies a neat, three-step process – extract, transform, load – this simple definition doesn’t capture: The transportation of data. The overlap between each of these stages.

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What are the ETL validations?

Data Validation Tests For ETL And Data Migration Projects

  • #1) Data Uniformity.
  • #2) Entity Presence.
  • #3) Data Accuracy.
  • #4) Metadata Validation.
  • #5) Data Integrity.
  • #6) Data Completeness.
  • #7) Data Transformation.
  • #8) Data Uniqueness Or Duplication.

What is full form of MSBI?

Introduction. Microsoft Business Intelligence (MSBI Full Form) is a suite which comprises of tool which provides an extremely efficient solution for business.

What are ETL tools?

The list of ETL tools

  • Informatica PowerCenter.
  • SAP Data Services.
  • Talend Open Studio & Integration Suite.
  • SQL Server Integration Services (SSIS)
  • IBM Information Server (Datastage)
  • Actian DataConnect.
  • SAS Data Management.
  • Open Text Integration Center.

How do you document ETL?

A common way to document the ETL transformation specifications is in a source-to-target mapping document, which can be a matrix or a spreadsheet, as illustrated in Table 1. The source-to-target mapping document should list all BI tables and columns and their data types and lengths.

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What is reconciliation in ETL?

Data reconciliation (DR) is a term typically used to describe a verification phase during a data migration where the target data is compared against original source data to ensure that the migration architecture has transferred the data correctly.

Is MSBI and ETL tool?

SQL Server Data Tools(SSDT) MSBI is composed of tools which helps in providing best solutions for Business Intelligence and Data Mining Queries. These are the three tools we are using for ETL, Analysis and reporting in MSBI.

What is SSIS and SSAS?

SSAS is Microsoft SQL Server’s Analysis Services which is an online analytical processing (OLAP), data mining and reporting tool used in Business Intelligence to make your data work for you. SSIS stands for Sql Server Integration Services. The key power of SSIS is its data transformation and migration capability.