What is Nullif Function in Structured Query Language (SQL)?
What is Nullif Function in SQL?
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Chapters:
00:00 - Introduction
00:10 - What is NULLIF Function in SQL?
00:15 - Handling Errors with NULLIF in SQL
00:27 - Practical Use Case of NULLIF in SQL
00:32 - Practical Example Setup
00:40 - Demonstrating NULLIF Functionality in SQL
00:55 - Example Execution
01:06 - Analyzing the Output
02:00 - Conclusion
02:29 - Closing Remarks
We will discuss the NULLIF function. This function returns NULL if two specified expressions are equal; otherwise, it returns the first expression. It is useful for avoiding division by zero errors.
For example, if a column contains the value '2004' and you want to replace it with NULL, the NULLIF function can do this. In a table with Employee ID and Sales columns, using NULLIF can replace '001' in the Employee ID column with NULL.
This video explains how to implement such requirements using the NULLIF function. Thank you for watching Educate Cube. Please like, share, and subscribe to our channel, and press the bell icon for the latest updates. Follow us on social media.