How to extract a substring from column in oracle?

@jasen 

To extract a substring from a column in Oracle, you can use the SUBSTR function. Here is an example query that extracts a substring from a column named column_name in a table named table_name:

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SELECT SUBSTR(column_name, start_position, length) AS extracted_string
FROM table_name;

In this query:

• column_name is the name of the column from which you want to extract the substring.
• start_position is the position in the column from which you want to start extracting the substring. This is a 1-based index.
• length is the number of characters you want to extract from the column.

You can customize the start_position and length parameters to extract the desired substring from the column.