| empty |
returns the maximum hash code value. |
| an expression that evaluates to NULL |
returns '00000000'XB. |
| a list of expressions where all the expressions evaluate to NULL |
| an expression that evaluates to 0, '', ' ', or a similar value |
| a valid, non-NULL expression that can appear in the select list of a SELECT statement |
evaluates expression or the list of expressions and applies the hash function on the result. HASHROW returns the resulting row hash value. |
| a list of expressions that can appear in the select list of a SELECT statement, where some expressions can evaluate to NULL |