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    Question :
    What is Meta data?
    Category Data Warehousing Interview Questions
    Rating (0.4) By 1254 users
    Added on 7/23/2010
    Views 1490
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    Metadata is data about data. E.g. if in data mart we are receiving any file. Then metadata will contain information like how many columns, file is fix width/limited, ordering of fields, data types of field etc.

    metadata is data about contains information about the cardinality etc..cardinality is nothing but number of attributes

    Posted by: yohitha    

    Contact yohitha Contact yohitha

    Metedata in DWH is similar to data dictonary in DBMS.Metadata plays a key role in converting raw data into knowledge,as it helps to provide valuable description about the data.So that,it can be understand and converted into meaningful information.

    Posted by: soundarya    

    Contact soundarya Contact soundarya

    Metadata is structured information
    that describes, explains,
    locates, or otherwise makes it
    easier to retrieve, use, or manage
    an information resource. Metadata
    is often called data about data or
    information about information.

    Posted by: sudhir....    

    Contact sudhir.... Contact sudhir....

    Meta data is data about data and contains the location and description of warehouse system components; names, definition, structure and content of the data warehouse and end user views; identification of authoritative data sources (system of record); integration and transformation of rules used to populate the data warehouse; a history of warehouse updates and refreshments; metrics used to analyze warehouse performance vis-a-vis end-user usage

    Posted by: dr.h.v.ramakrishnan    

    Contact dr.h.v.ramakrishnan Contact dr.h.v.ramakrishnan

    It is the data which describes the properties or characteristics of end users data and the context of data.
    Metadata properties can include info such as:
    -data name
    -length or size
    -values allowed
    -source of data
    Metadata and ddata are always seprate.
    Metadata enables the database designers and programmers to understand exactly in which from the data should exist with in the system

    Posted by: sudhakar reddy boddu    

    Contact sudhakar reddy boddu Contact sudhakar reddy boddu

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