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While sorting, if the main storage available is not enough, the system writes data to an external help file. The SAP profile parameter, which determines
DIR_SORTTMP
Partial Key : It is a group of attributes that can uniquely identify small entities and that are related to same base entity. It is sometime named as Discriminator. Altern
Explain the challenges before an E-business management.
What are the different integrity constraints in RDBMS? The various integrity constraints in RDBMS are as: Primary Key: primary key is a grouping of one or more attributes
Explain the concept of generalization and aggregation in E_R diagrams. Give one example for each one of them? Generalization: Consider extending the entity set account throug
Give the general form of SQL query? Select A1, A2............., An From R1, R2..............., Rm Where P
Why did SAP introduce the extended star schema? Explain why it is reported to be better than the traditional schema model?
Construct a clean ans concise ER diagram for the database indicating the cardinality mapping for Employee management syatem
What are the various symbols used to draw an E-R diagram (any 3)?
ddlc
Differentiate sub-class and super-class? The specialization of a class is known as subclasses.eg: employee is a subclass of person and teller is a subclass of employee. Convers
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