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In E-R diagram how generalization is represented?
in E-R diagram generalization is represented by Triangle shape.
Rules Of Data Normalisation Let us now summarise Normalisation with the help of various clean rules. The following are the necessary rules for the Normalisation process: 1.
What is Collation Collation is a kind of sort order. There are majorly 3 types of sort orders, namely: i.) Dictionary case insensitive ii.)Dictionary - case sensitive
Logical Operators Rules of Precedence: Order evaluated Operator 1 All comparison operators 2
Explain Thomas' Write rule. Show how it is different from timestamp ordering protol Ans: In timestamp-based concurrency control the thomas Write rule is a rule. Given a Timest
explain in details about one to one binary relationship
What is a data dictionary? Data Dictionary is a main source of data in a data management system. Its major function is to carry the creation and management of data definition
how draw er diagram
what is cascading? what is rollback cascading? please explain in detail
Some disadvantages of File Oriented System ?
Before we talk about the relational model in more detail, let us first define some very basic terms used in this model. Tuple Every row in a table shows a record and is cal
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