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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 lev
Removing a Synonym: DROP SYNONYM D30;
object oriented database
Define Forms Based Interfaces? Forms-Based Interfaces - A forms-based interface display a form to each user. Forms are commonly designed and programmed for naive users and inte
What is the main advantage of the object model? What are its different components? The object model focuses on the logical data structures. Each object model comprises of many
Concatenation operator Example : Printing name and job as one string as column name employees: SELECT ENAME||JOB "EMPLOYEES" FROM EMP;
Explain Interfaces for parametric Users? Interfaces for Parametric Users - Parametric users, such as bank tellers, frequent have a little set of operations in which they must p
Define the terms i) Entity set ii) Relationship set Entity set: The set of all entities of the similar type is termed as an entity set. Relationship set: The set of all rela
In an E-R diagram how attributes are represented ? In an E-R diagram attributes are represented in a ellipse.
The Incident table, with an auto-incrementing incident number, etc, looks like: incident_num reporter date time incide
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