Answers for "impala select count distinct"

select count of distinct values sql

SELECT COUNT (DISTINCT column-name)  FROM table-name

Posted by: Guest on March-06-2020

select count distinct multiple columns sql server

SELECT COUNT(DISTINCT (CHECKSUM(DocumentId,DocumentSessionId)) + CHECKSUM(REVERSE(DocumentId),REVERSE(DocumentSessionId)) )
FROM DocumentOutPutItems

Posted by: Guest on August-05-2020

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