SQL NULL vs Empty String vs Blank Space (Visually Explained) |

Описание: Visually explained the difference between NULL, empty strings, and blank spaces in SQL with clear examples.
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📖 Table of Content
00:00 NULL vs Empty String vs Blank Space
06:01 Data Policies
14:37 NULL Summary

This course is perfect for data analysts, data engineers, data scientists, software developers, and students—covering everything from the basics to advanced SQL topics.
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