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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
Although how will the system recover The selection of REDO or UNDO for a transaction for the recovery is completed on the basis of the state of the transactions. This state is
Define the Division Operation of Relational Algebra Let R be a relation comprising attributes (A1,...Ap,Ap+1,...An) and S comprising attributes (Ap+1,...An) DEF: Division
Explain I command in QBE ? I : It is the command in QBE that is used to insert tuple (s) into the database
how to write a in a text and load it on mysql
Explain the term High level DML? High level DML A high-level or non-procedural DML permit the user to specify what data is needed without specifying how it is to be acquired.
Three way to handle missing field val
List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization
Enumerate or state the steps in creating a relevant database of a shop.
define attribute inheritance with example?
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