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Having Clause with sub queries: First we have to recollect the GROUP BYclause. The following query searches the minimum salary in every department. SELECT DEPTNO, MIN (SAL)
01a_Broadway_LastFirst_yyyy-mm-dd Capstone Exercises You work as a production assistant in the office of the Green Man Theatre. One of your duties is to maintain the company datab
What is the aim of object design The aim of object design is to identify object which the system contains and the interactions among them. The system implements specification
what is natural join?
non numeric literals
What are audit trails? An audit trail is a log of all alters to the database along with information like which user performed the change and when the alter was performed.
Database Manager It is the interface among low-level data, queries and application programs. Databases typically need a large amount of storage space. It is kept on disks, as
What are composite attributes? Composite attributes can be separated in to sub parts.
Explain how the object classes are mapped to tables. Each object class maps to one or more than one tables in the database. The objects in the class may be partitioned horizont
how to implement mid square hashing?
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