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Consider the E/R schema with weak entity sets shown below. Come up with the SQL CREATE TABLE statements (with appropriate primary key, unique and foreign key constraints). Include the SQL statements and appropriate screen shots showing that your CREATE TABLE statements succeeded into your submission document
Define Shared locks? Ans: Shared lock: Throughout concurrent execution of transactions, earlier than a transaction can access a data item, it has to obtain a lock on it. Now he
List some security violations (or) name any forms of malicious access. A) Unauthorized reading of data B) Unauthorized modification of data C) Unauthorized destruction of
Different stages of DDLC ?
WHAT IS DSS? WRITE ITS REQUIREMENTS.
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What is recursive closure? Why is it not possible to describe this operation in relational algebra? Recursive closure is applied to recursive relationship. An instance of rec
why are older data models are being replaced by new data models
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State the meaning of Object Representation The term object representation means "to represent object with the help of objects model symbols". Implementing objects is too simp
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