用SQL实现统计报表中的“小计”和“合计”

问题：

开发一个关于各烟叶等级的二次验级的原发件数、原发重量及验收重量的统计报表。其中，原发件数、原发重量和验收重量等列要求计算出各等级组别的小计和所有记录的合计。

语句：

SELECT DECODE(GROUPING(T4.TOBACCO_CLASS_TYPE) + GROUPING(T1.TOBACCO_CLASS_NAME),

                               1,

                               DECODE(T4.TOBACCO_TYPE,

                                                  51, ‘上等烟小计’,

                                                  52, ‘中等烟小计’,

                                                  53, ‘下等烟小计’,

                                                  54, ‘低等烟小计’,

                                                  ‘小计’),

                               2,

                               ‘合计’,

                               T1.TOBACCO_CLASS_NAME

                 ) TOBACCO_CLASS_NAME,

                   T4.TOBACCO_CLASS_TYPE,

                   NVL(SUM(T1.ORG_PIECE),0) TOTAL_ORG_PIECE,

                   NVL(SUM(T1.ORG_WEIGHT), 0) TOTAL_ORG_WEIGHT,

                   NVL(SUM(T1.AMOUNT), 0) TOTAL_AMOUNT

 FROM     VI_FK_BALANCE_DETAIL T1, TB_TOBACCO_CLASS T4

WHERE    T1.TOBACCO_CLASS_ID=T4.TOBACCO_CLASS_ID

                   AND T1.ACCOUNT_YEAR=T4.ACCOUNT_YEAR

                   AND T4.DEL_FLAG=0

                   AND T4.ENABLE_FLAG=0

                   AND T1.REC_DATE > TO_DATE(‘2006-11-05’, ‘YYYY-MM-DD’

GROUP   BY   ROLLUP( T4.TOBACCO_CLASS_TYPE,T1.TOBACCO_CLASS_NAME)

ORDER   BY  T4.TOBACCO_CLASS_TYPE

 

通过查询得到统计结果如下表所示，该表的统计结果已经满足了统计要求。

烟叶等级	等级组别	原发件数	原发重量	验收重量
(B1F)上桔一	51	4945	197800	197508.1
(B2F)上桔二	51	8335	333400	332316.9
(C1F)中桔一	51	694	27760	27610.54
(C2F)中桔二	51	803	32120	31650.4
(C3F)中桔三	51	6381	255240	255372.6
(X1F)下桔一	51	75	3000	3012.2
上等烟小计	51	21233	849320	847470.8
(B3F)上桔三	52	4701	188040	187389.9
(B4F)上桔四	52	122	4880	4866.81
(C3V)中微青三	52	174	6960	6934.06
(C4F)中桔四	52	4639	185560	185276.4
(X2F)下桔二	52	1739	69560	69029.79
(X2V)下微青二	52	26	1040	1038.34
(X3F)下桔三	52	1263	50520	50439.86
中等烟小计	52	12664	506560	504975.1
(X4F)下桔四	53	102	4080	4075.62
下等烟小计	53	102	4080	4075.62
(B3K)上杂三	54	0	0	249.39
低等烟小计	54	0	0	249.39
合计		33999	1359960	1356771