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Describe the two types of methods for retrieving rows in Python?
The database files accept the actual data and are typically the biggest in size. Depending on their shape, the tables for all the user operation can go in one database file-but
Problem 1. Write an assembly program to find the smallest among two numbers Writing an assembly program to find the smallest among two numbers 2. Explain the intern
What is meant by the degree of relationship set? The degree of relationship type is the number of participating entity types.
Aggregation : One limitation of the E-R diagram is that they do not permit representation of relationships between relationships. In such a case the relationship along with its ent
Critically explained the benefits and limitations of different database technologies with proper examples
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
What is the use of Union and intersection operation? Union: The result of this operation contains all tuples that are either in r1 or in r2 or in both r1 and r2.Duplicate tuple
(a) Why did SAP introduce the extended star schema?
why are older data base model are being replaced by new data model
Define- relational algebra. The relational algebra is a procedural query language. It having of a set of operations that take one or two relation as input and make a new relati
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