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Explain the term- Data Flows
Data Flows: A data flow connects output of an object or process to input of another process or object. It represents an in-between data value within a computation. Data flow states direction of flow of data from the source objects to destination object.
#questiontypes of keys examples..
Record based Logical Models: Use records as the key data representation components Examples: Relational Model: It shows data as well as relationship between data in the form
What is object containment? References among objects can be used to model dissimilar real-world concepts.
What does data dictionary is a special file contains ? The data dictionary is a special file contain The name of all fields in all files.The width of all fields in all files an
What does conceptual design work? A conceptual design involves modelling independent of the DBMS.
The data of a view is not physically stored, but derived from one or more tables. True the data of a view is not physically stored
Product adder required for Ecommerce website Project Description: Want a product adder for 500 products I have a magento website and need products pulled from site A to my si
The Maximum no of key fields that can be used in a header is?? 50
Explain what is DDL? DDL - Data Definition Language: statements used to define the database structure or schema. Some examples: CREATE - to create objects in the database ALT
How many levels can be viewed in Architecture of the database ? Architecture of the database can be viewed as three levels.
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