mysql> create table t (i int, j int);
Query OK, 0 rows affected (0.0187 sec)
mysql> insert into t(i, j) values ();
ERROR: 1136: Column count doesn't match value count at row 1
mysql> insert into t(j) values ();
ERROR: 1136: Column count doesn't match value count at row 1
mysql> insert into t(i) values ();
ERROR: 1136: Column count doesn't match value count at row 1
mysql> select * from t;
Empty set (0.0029 sec)

tmp/main*> create table t1 (i int, j int);
tmp/main*> insert into t1 values ();
Query OK, 1 row affected (0.00 sec)
tmp/main*> insert into t1(i,j) values ();
Query OK, 1 row affected (0.00 sec)
tmp/main*> insert into t1(j) values ();
Query OK, 1 row affected (0.00 sec)
tmp/main*> insert into t1(i) values ();
Query OK, 1 row affected (0.00 sec)
tmp/main*> select * from t;
+-----+
| i   |
+-----+
| 123 |
+-----+
1 row in set (0.00 sec)