为什么联合转型是活跃的？
[英]Why union Transformation is Active?
问题描述
Union Transformation is used to combine or merge multiple sources having same structure and data types.
联合转换用于合并或合并具有相同结构和数据类型的多个源。 if I combine 2 sources one having 10 records and another having 10 records and the output is 20. so here input and output record is same.如果我结合 2 个源，一个有 10 条记录，另一个有 10 条记录，output 是 20。所以这里输入和 output 记录是相同的。 then why should we call Union is Active.那我们为什么要称Union is Active。 need a example for this需要一个例子
1 个解决方案
解决方案1
0 2021-01-24 10:57:14
Because if you consider the path from a single source to a single target then a UNION transformation between them can/will change the number of rows因为如果您考虑从单个源到单个目标的路径，那么它们之间的 UNION 转换可以/将改变行数
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