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I want to select a field from table and substring it.
For example:
VAN1031 --> 1031
I tried this, but is improper syntax:
SELECT SUBSTR(R.regnumber,3,3) from registration R
How can this be done?
You don’t need the third argument (length) if you want to select all the characters to the right of a specific index:
I also changed the start index to 4 because in SQL strings are 1-indexed and not 0-indexed as they are in many popular programming languages.