Sql substring function

 Substring function in sql server extracts a portion of a string, this function troubled me in a couple of times with lack of awareness in string indexes

Now i cleared the ambiquity and so posting here

Syntax

Select substring(stringth, start, length)

Here

String = the main string

Start = from where extraction should start

Length = the total length from 0 th character of the string of main string

Eg.

If we want to extract .’ef’ from ‘abcdef’

The select statement should be like

Select substring(‘abcdef’,5,6)

Ie. Extraction will start from the very start character to the very end

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