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Our company hires independent contractors to install equipment at precise locations across North America. We want to track the installation data and generate reports. The compan
Explain the difference between using functions along with and without grouping attributes in relational algebra. Give examples. Ans: Group functions are used to group data of
A Structure of a dependency diagram
Using Column aliases Example: To print column names as NAME and ANNUAL SALARY SELECT ENAME "NAME", SAL*12 "ANNUAL SALARY" FROM EMP;
What are the properties of transaction? There are three properties of transactions :- A) Atomicity B) Consistency C) Isolation
what are the main characteristics of database
(a) Why did SAP introduce the extended star schema?
Explain the difference between optimistic locking and pessimistic locking. Optimistic locking supposes no transaction conflict will occur and deals with the consequences if it
what do you mean by consistency in rdbms?
i am required to come up with entities relationships, optionality and cardinality from a scenario. there is a night club and bookings for a musician band
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