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List and also explain the dissimilar stages of DDLC ?
er diagram on cosmetics.
Define Database layer? The database layer defines the data formats used in the database.
Can a filed occur in several field groups. Yes. But it leads to redundant data redundancy.
What is a super key? A super key is a set of one or more attributes that collectively permits us to recognize uniquely an entity in the entity set.
Accessing information about permissions to all users- Object level permissions: With the use of data dictionary you can see the permissions to user. Let us get the table name fro
sql is relationally complete-justify
What is Cardinality Ratio? Cardinality Ratios - The cardinality ratios for relationship kinds specifies the maximum number of relationship instances in which an entity can pa
Consider the relations described below: PHYSICIAN (regno, name, telno, city) PATIENT (pname, street, city) VISIT (pname, regno, date_of_visit, fee) Where the regno and pname ide
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