sql select last id

1#Where the the column name is "ID" and table name is "tablename" and ID naming is increasing numerical value.
2SELECT * 
3FROM tablename
4WHERE ID = (
5    SELECT MAX(ID) 
6  	FROM Table)

1SELECT
2  (SELECT * FROM tableName ORDER BY col1 LIMIT 1)        AS first,
3  (SELECT * FROM tableName ORDER BY col1 DESC LIMIT 1)   AS last
4;

1SELECT MAX(id) FROM <tablename>