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What are the parts of SQL language?
The SQL language has various parts:
data - definitition language
Data manipulation language
View definition
Transaction control
Embedded SQL
Integrity
Authorization
In an E-R diagram how attributes are represented ? In an E-R diagram attributes are represented in a ellipse.
At its most essential level the DBMS architecture can be divide into two parts: the back end and the front end. The back end is responsible for managing the physical database an
Redo Logs: Any database must have minimum two redo logs. These are the rules for the database; the redo logs record all modifies to the system objects or user objects. If any type
Question: A DBMS built for Online Transaction Processing (OLTP) is generally regarded as unsuitable for data warehousing. Each system is designed with a different set of requir
how to implement hyrise in C plus plus
E-R Model This data model is based on real world that consists of basic objects named entities and of relationship among these objects. Entities are illustrated in a database
Creating a view: A query can be embedded within the CREATE VIEW STATEMENT A query can have complex select statements containing join, groups and sub- queries A quer
why are older data models are being replaced by new data models
How many types of Views are there? There are Four types of views:- Database View Help View Projection View Maintenance View
Process to find the non-concurrent objects Once we find out non-concurrent (mutually exclusive) objects, we can fold all objects together in one thread of process or control. O
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