position function
Applies to:  Databricks SQL 
 Databricks Runtime
Returns the position of the first occurrence of substr in str after position pos. This function is a synonym for locate function.
Syntax
position(substr, str [, pos] )
position(subtr IN str)
Arguments
substr: ASTRINGexpression.str: ASTRINGexpression.pos: AnINTEGERexpression.
Returns
An INTEGER.
The specified pos and return value are 1-based.
If pos is omitted, substr is searched from the beginning of str.
If pos is less than 1, the result is 0.
Examples
SQL
> SELECT position('bar', 'abcbarbar');
 4
> SELECT position('bar', 'abcbarbar', 5);
 7
> SELECT position('bar' IN 'abcbarbar');
 4
> SELECT position('BAR' COLLATE UTF8_BINARY, 'abcbarbar');
 0
> SELECT position('BAR' COLLATE UTF8_LCASE, 'abcbarbar');
 4