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What is Foreign Key
Foreign Key: Sometimes we may have to work with an attribute that does not have a primary key of its own. To recognize its rows, we have to use the primary attribute of a related table. Such a copy of another related table's primary key is known as foreign key.
Describe the definition of a transaction in SQL Ans: The SQL transaction starts implicitly. Transactions are finished by either Commit work that commits the transaction and st
Which data manipulation command combines the records from one or more tables ? JOIN data manipulation command combines the records from one or more tables.
Smart Alex Catering Sevice (SACS) is a company offering top class catering staff for prestigious events. The company employs approximately 200 hourly paid contact staff - chefs,
E-R Model This data model is based on real world that consists of basic objects named entities and of relationship among these objects. Entities are illustrated in a database
What are the advantages of relational data model? Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer
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Design an algorithm to implement operations Each and every operation specified in the functional model could be formulated as an algorithm. The algorithm indicates how operat
what is check point in database management system
What are the storage types? The storage types are: a) Volatile storage b) Nonvolatile storage
What is a data dictionary? A data dictionary is a data structure which keeps Meta data about the structure of the database i.e. the schema of the database.
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