What is Left Function in Structured Query Language (SQL)?
What is Left Function in SQL?
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Chapters:
00:00 - Introduction to LEFT Function in SQL
00:10 - What is the LEFT Function in SQL?
00:15 - How LEFT Function Works in SQL
00:23 - Practical Use Case
00:32 - Syntax of LEFT Function in SQL
00:37 - Practical Example: Extracting Characters in SQL
00:50 - Demonstration with Sample Data
01:05 - Extracting First 3 Characters from Product ID in SQL
01:22 - Final Output and Results
01:39 - Conclusion and Summary
01:55 - Closing Remarks
We will discuss the LEFT function, which extracts a specified number of characters from the left side of a string. For example, to extract the first three characters from a Product ID, use the LEFT function by writing LEFT, then the string or column name, a comma, the number of characters, and close the function. This will output the desired characters.
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