INSTR Function:- The INSTR function in SQL is used to find the starting location of a pattern in a string. The syntax for the INSTR function is as follows: INSTR (str, pattern): Find the starting location of pattern in string str.
SUBSTR Function:- The Substring function in SQL is used to grab a portion of the stored data. The syntax for the SUBSTR function is as follows: SUBSTR(str,pos,len): Starting with the position pos in string str select the characters upto the length len.
In the above query,
INSTR('abcabcabc', 'b') outputs 2 as the starting location of pattern
Which of the following group functions ignore NULL values?