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Differentiate between a subquery and a join
If we need to acquire information from one or more tables after that either subquery or join can be used. If the columns which are to appear in the result table are from different tables after that a join must be employed.
How does Oracle act as ODBC and give examples of front end uses with ODBC? ODBC achieve portability at the level of the executable by introducing an extra level of indirection.
1. Item based services will be charged fixed prices, and time-based will be charged variably depending on time. Such as per hour. Item-based: Fixed, pedicure, waxing, threading, fa
What does authentication refer? Authentication refers to the task of verifying the uniqueness of a person.
what are the reasons having variable length records
difference between internal schema and external schema in DBMS
word limit no mentioned
It defines that the tuple in one relation that refers to another relation must refer to an existing tuple in that relation. This constraint is states on two relations (not essentia
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
Describe the Association: Design Before we describe association design let us define association "Association is set of links between two objects in the object model". It is
What are the two types of serializability? The two types of serializability is a) Conflict serializability b) View serializability
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