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DDL Compiler The DDL compiler changes the data definition statements (such as CREATE TABLE .... in SQL) into a set of tables having metadata tables. These tables have infor
An orchestra database consists of the following relations: CONDUCTS (conductor, composition) REQUIRES (composition, Instrument) PLAYS (Player, Instrument) Give the relational
What is object containment? References among objects can be used to model dissimilar real-world concepts.
how many types of data model in DBMS? explain data abstraction with its different level
prototype of a distributed information system for a national car part retail outlet chain.
What is Cross Product? Simply Cross product is Binary Operator
What is the use of a slotted-page structure and what is the information are there in the header? The slotted-page structure is used for organizing records within a one block.
Domain Constraints Domain constraints are primarily formed for defining the logically correct values for an attribute of a relation. The relation allows attributes of a relatio
What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)
a set of possible data value of an attribute is called??
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