我正在尝试使用以下信息计算报告的值:
主题组有多个事件组,每个事件都有一个值为1或0的字段。我试图弄清楚如何计算至少有一个事件组的值为1的主题组的数量。
我尝试过拆分成多个变量,但似乎无法进行计算,也无法正确重置。我可以返回所有事件的计数以及所有具有1值的事件的总和。
我的数据显示5个值为1的事件,但我需要返回4个主题的数量。任何帮助都将非常感谢。
答案 0 :(得分:0)
试试这个 - 这是2组和一个细节值。我们取内部组中的细节值的总和,然后计算内部组的总和>的值的计数。 0.将此项放入iReport时,请检查重置类型/组和增量类型/组。还有一些样本数据。
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<![CDATA[SELECT 'I1' AS GROUP_1,
'J1' AS GROUP_2,
0 AS DETAIL_VALUE
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SELECT 'I1' AS GROUP_1,
'J2' AS GROUP_2,
1 AS DETAIL_VALUE
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SELECT 'I2' AS GROUP_1,
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1 AS DETAIL_VALUE
FROM DUAL
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SELECT 'I2' AS GROUP_1,
'J2' AS GROUP_2,
1 AS DETAIL_VALUE
FROM DUAL
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SELECT 'I2' AS GROUP_1,
'J3' AS GROUP_2,
1 AS DETAIL_VALUE
FROM DUAL
UNION
SELECT 'I3' AS GROUP_1,
'J1' AS GROUP_2,
0 AS DETAIL_VALUE
FROM DUAL
UNION
SELECT 'I3' AS GROUP_1,
'J2' AS GROUP_2,
0 AS DETAIL_VALUE
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<field name="GROUP_2" class="java.lang.String"/>
<field name="DETAIL_VALUE" class="java.math.BigDecimal"/>
<variable name="GROUP_2_SUM" class="java.math.BigDecimal" resetType="Group" resetGroup="GROUP_1" calculation="Sum">
<variableExpression><![CDATA[$F{DETAIL_VALUE} == 1 ? 1 : 0]]></variableExpression>
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<variable name="GROUP_1_TALLY" class="java.math.BigDecimal" resetType="Group" resetGroup="GROUP_1" calculation="Count">
<variableExpression><![CDATA[$V{GROUP_2_SUM} > 0 ? 1 : 0]]></variableExpression>
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