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We face problem of stock Opening balance and closing balance in Minus
What is the use of unique function? UNIQUE function: If UNIQUE is specified then only unique values are used to computed the mean.
Design a database for an airline.The database must keep track of customers and their reservations,flights and their status, seat assignment on individual flights and, the schedule
sql is relationally complete-justify
What is database Trigger? A database trigger is a PL/SQL block that can explained to automatically execute for insert, update, and delete statements against a table. The trigge
State the Object Design for Processing The object design phase comes after analysis and system design phase. The object design phase includes implementation details like as i
Two-way Associations Mostly, associations are travel in both directions, although not usually with same frequency. There are three approaches for the implementation. In
what is natural join?
what is Mapping Constraints? with examples
#Use the following database schema: 1) Patient—PatientID, Name, DOB 2) Doctor—DoctorID, Name, MedLicenseNumber, Phone 3) Medication—MedicationID, BrandName, GenericName 4) Prescrip
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