What is DUAL table in Oracle || Oracle SQL fundamentals 

This is a tutorial on what is Dual in Oracle and why it is used. Uses of DUAL is demonstrated by executing some example commands.
Topics discussed in this video :
What is Dual in Oracle
Why Dual is needed
Examples -
To print any string or number using Dual
To solve any arithmetic expression using Dual
To print system date using Dual
Software used: Oracle Database 10g XE
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