无法在ORACLE 11G中显示列总数

Question

执行此查询时，我将GRAND TOTAL列设为空（ORACLE 11G）。

QUERY：

select  NVL(TO_CHAR(APPROVER_EMPLOYEE_NAME), 'Grand Total') as EMPLOYEE_NAME,
SUM(ONE_DAY) one_day, 
SUM(TWO_DAYS) TWO_DAYS , 
SUM(THREE_DAYS) THREE_DAYS, 
SUM(ONE_DAY + TWO_DAYS + THREE_DAYS) TOTAL
from ic_request
group by rollup (APPROVER_EMPLOYEE_NAME);

EMPLOYEE_NAME          ONE_DAY       TWO_DAYS        THREE_DAYS     TOTAL
--------------------------------------------------------------------------
abc                      271            64      
xyz                       60            09               01      
--------------------------------------------------------------------------
Grand Total              331            73               01

没有对应于＆＃39; abc＆＃39;排和＆＃39; THREE_DAYS＆＃39;柱。 任何人都可以帮助显示＆＃39; TOTAL＆＃39;列，总计行总数＆gt;

Answer 1

因为行THREE_DAYS的{​​{1}}列为空。您可以使用abc将null设为零并正确添加。

<强>查询

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