instr function

Returns the (1-based) index of the first occurrence of substr in str.

Syntax 

instr(str, substr)

Arguments

  • str: A STRING expression.

  • substr: A STRING expression.

Returns

A BIGINT.

If substr cannot be found the function returns 0.

Examples 

> SELECT instr('SparkSQL', 'SQL');
 6
> SELECT instr('SparkSQL', 'R');
 0