有一个薪水表,salaries简况如下:
emp_no | salary | from_date | to_date |
10001 | 60117 | 1986-06-26 | 1987-06-26 |
10001 | 62102 | 1987-06-26 | 1988-06-25 |
10001 | 66074 | 1988-06-25 | 1989-06-25 |
10001 | 66596 | 1989-06-25 | 1990-06-25 |
10001 | 66961 | 1990-06-25 | 1991-06-25 |
10001 | 71046 | 1991-06-25 | 1992-06-24 |
10001 | 74333 | 1992-06-24 | 1993-06-24 |
10001 | 75286 | 1993-06-24 | 1994-06-24 |
10001 | 75994 | 1994-06-24 | 1995-06-24 |
10001 | 76884 | 1995-06-24 | 1996-06-23 |
10001 | 80013 | 1996-06-23 | 1997-06-23 |
10001 | 81025 | 1997-06-23 | 1998-06-23 |
10001 | 81097 | 1998-06-23 | 1999-06-23 |
10001 | 84917 | 1999-06-23 | 2000-06-22 |
10001 | 85112 | 2000-06-22 | 2001-06-22 |
10001 | 85097 | 2001-06-22 | 2002-06-22 |
10002 | 72527 | 1996-08-03 | 1997-08-03 |
请你查找薪水记录超过15条的员工号emp_no以及其对应的记录次数t,以上例子输出如下:
emp_no | t |
10001 | 16 |