oracle 查询语句报错"值过多",求大神解救

当月累计和年累计的记录数不会相同，并且没有连接，修改如下
SELECT A.GS,B.Y_COUNT,A.M_COUNT FROM
       (SELECT COUNT(*) M_COUNT, GS
          FROM 考勤记录表 T
         WHERE TO_CHAR(T.创建时间, 'YYYY-MM') = TO_CHAR(SYSDATE, 'YYYY-MM')
         GROUP BY GS) A,
       (SELECT COUNT(*) Y_COUNT, GS
          FROM 考勤记录表 T
         WHERE TO_CHAR(T.创建时间, 'YYYY') = TO_CHAR(SYSDATE, 'YYYY')
         GROUP BY GS)B
         WHERE A.GS=B.GS