Hi, I will explain Constraints ( Primary Key, Foreign Key , Unique Key, Not Null and Check ) in Oracle SQL in this post of Oracle SQL Tutorial series.
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Oracle SQL Tutorials Chapter 7 ( Part 1 of 2 )
Chapter 7 – CREATING AND MANAGING TABLES Classify Main Database Objects Examining Table Structure Data Types of the Columns Creating a Simple Table Understanding How Schema Objects Work DATABASE OBJECTS …
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