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Q: What is exact meaning of schema refinement?
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What is a synonym for the word class?

In terms of school: course, section, discussion, seminar In terms of refinement: elegance, style, refinement


What is a sentence using the word exact?

Estimations don't have to have the exact answer. Mathematics is an exact science. The exact meaning of the ancient carvings is unknown.


Describe the differences in meaning between the terms relation and relation schema?

Relational Schema refers to meta-data elements which are used to describe structures and constraints of data representing a particular domain. Whereas a relation is a property or predicate that ranges over more than one argument Here's some translation from "Relational Algebra" to SQL terminology: * "Relation" = Table. * "Relation Schema" = Table definition. So for example, the "schema" for the Person "relation" is: Person(FirstName, LastName, Age, Gender, Address) Also in relational Algebra, a "tuple" is a table row, and an "attribute" is a table column.Mathematician define a relation to be subset of cartesian product list of domains.In daabase relation is a set of entities with similar attributes.In other way we can consider a relation as a table and it's rows as entities, and table's columns as attributes.Concept of relation corresponds to programming language notion of variable.relational Schema corresponds to the programming language notion of type definition.It is the logical design of database.e.g. for a relation account having attributes account_number, branch_name and balance, relational schema is specified as -Account_schema= (account_number, branch_name, balance)


How it is related to data independence?

Hi, Data Independence refers to the immunity of user application to make changes in the definition and organization of Data. There are three types of Data Independence - 1. Logical Data Independence - The ability to change the logical (conceptual) schema without changing the External schema (User View) is called logical data independence. 2. Physical Data Independence - The ability to change the physical schema without changing the logical schema is called physical data independence. 3. View Data Independence - always independent,no effect.


What is the exact meaning of equal set?

equal set mean the set is equal equal est means that the set is equal

Related questions

What is the meaning of schemata?

of Schema


What is meaning of schematic?

Of or pertaining to a scheme or a schema.


What is the spiritual meaning of a gardenia?

Purity, secret love, refinement .


What is the meaning of the purple?

The meaning of the flower orchid varies, but it generally symbolizes: love, beauty, and refinement.


What is the meaning of purple orchids?

The meaning of the flower orchid varies, but it generally symbolizes: love, beauty, and refinement.


What is star flake schema?

A starflake schema is a combination of a star schema and a snowflake schema. Starflake schemas are snowflake schemas where only some of the dimension tables have been denormalized. hardkingofflirt@gmail.com


What is exact meaning of word editing in multimedia?

"What is exact meaning of word editing in multimedia?" "What is exact meaning of word editing in multimedia?" "What is exact meaning of word editing in multimedia?"


What is schema and sub-schema?

The schema is the physical arrangement of the data as it appears in the DBMS. The subschema is the logical view of the data as it appears to the application program.


Explain the three schema architecture of DBMS?

Physical schema,logical schema and sub schemas


What part of speech is the word schema?

Schema is a noun.


What is an example sentence for refinement?

a lack of refinement is nothing to be proud of.


What is the exact meaning of gogeous in tagalog?

"Gogeous" does not have a direct equivalent in Tagalog. Perhaps you meant "gorgeous," which can be translated as "maganda" or "napakaganda" in Tagalog.