How can I get minus difference in BigQuery ?
BigQuery(BQ) is very useful for data analysis or processing.
It is good at handling huge data. It returns summary result in short time.
And also we can use BQ with very cheap price.
Yes. We don't care about price.
Sometimes we want to compare data between 2 tables.
For example, when we change some data procssing program, we must check difference between previous result and modified one.
But How can we get minus difference in BigQuery ?
So today I introduce about "How to get minus difference in BigQuery".
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