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Type of views:
Simple views and Difficult Views
Feature
Simple Views
Complex Views
Number of tables
One
One or more
Contain Functions
No
Yes
Contain groups of data
Data Manipulation
IS allowed
Not always
Let us look into some of the examples. To see all the details about existing views in
Oracle:
SELECT* FROM USER_VIEWS;
sir, could anybody help me in getting complete information about the mentioned topic
1. Staff(staffID, firstName, lastName, availabilityID, experience, phone, mobile, email); 2. Availability(availabilityID, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday,
Problem: ‘Users and Information system specialists need to spend inordinate amounts of time locating and gathering data' (Watson and Hal, 1998) Recent developments in the ar
How external/conceptual mapping and conceptual /internal mapping is performed
sql is relationally complete-justify
Question: This question refers to the database schema. a) Express the following queries in SQL: (i) Write the SQL code that will create the table Company. Your answer sh
What are called journaling file systems? File systems that support log disks are known as journaling file systems.
find the name of supplier who supply some red part
What are the two approaches to store relations in distributed database? a) Replication b) Fragmentation
What are the basic objects of the data dictionary? Tables Domains Data elements Structures Foreign Keys
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