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sql - Using group by function in hive to get aggregated counts and get zero as count output when the data is not available for a category in input table - Stack Overflow
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sql - Row count results MISMATCH for Select * and Select count(1) for Hive External table for Big Files - Stack Overflow
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sql - Using groupby function in Hive to get category counts, but one category is missing in output table as data is not available in input table - Stack Overflow
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