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Define the terms 1) physical schema 2) logical schema. Physical schema: The physical schema explains the database design at the physical level, which is the lowest level of abs
anyone have a textbook solutions case fair, 8 edition of vol 1 ?, please give me
A student entity type has the following attributes,name..
What is Asterisk in SQL? Asterisk (*): In SQL, the columns for all the tables and views in the FROM clause will be displayed.
Ancestry database records information about family trees . Following information is recorded about each person: FIRSTNAME first name SURNAME surname MNAME maiden name (if
Many-to-many : Entities in A and B are related with any number of entities from each other. Example: Taught_by Relationship among course and faculty. One faculty member ca
With the help of a suitable diagram gives module wise explanation of system architecture of DBMS.on..
Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password
What is conceptual schema? The schemas at the view level are known as subschema that describe dissimilar views of the database.
Equi Join: A join in which the joining condition is based on equality among values in the common columns. Common columns show (redundantly) in the result table. Let us Consider th
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