How can Oracle extract a specific substring?

You can use the SUBSTR function in Oracle to extract a specified substring. The specific syntax is as follows:

SUBSTR(string, start_position, length)

1. String: The string to be truncated.
2. The starting position is counted from 1.
3. length: the desired length to be trimmed.

For example, if you have a string “Hello, World!” and want to extract the word “World,” you can use the following code:

SELECT SUBSTR('Hello, World!', 8, 5) FROM dual;

In the above code, 8 is the starting position and 5 is the length to be cut, so it will return the string “World”.

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