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List the table modification commands in SQL?
A) Deletion
B) Updates
C) Insertion
D) Update of a view
What is the difference among a database schema and a database state? The collection of information stored in database at particular moment in time is known as database state a
What is D command work in the respect of QBE? D: It is the command inside QBE to delete tuple(s) from the relation.
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I have a small project that contains 3 deliverable s. I have done the first one and I would like you to help me with second one
Ask questApollo Hospitals (AH) is a popular medical service provider in Oman. AH wants to automate its business functions into an information system. The proposed information syst
Code an Oracle Database trigger to enforce the constraint that an employee can never change his or her department.
The following data are required to be stored by a family physician. Family#, FamilyAddress, Patient#, PatientName, ServiceCode, ServiceFee, ServiceDate A family can have seve
how to construct labelled precedence graph for view serialiability.please explain insteps with one solved examples
Describe the primary key functions? Primary Key : The primary key is an attribute or a set of attributes in which uniquely identify a specific example of an entity. Every entit
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