Top "Partition-by" questions

How to Use Multiple Columns in Partition By And Ensure No Duplicate Row is Returned

I have used multiple columns in Partition By statement in SQL but duplicate rows are returned back. I only want …

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sql-server-2008 no-duplicates partition-by
Cannot use group by and over(partition by) in the same query?

I have a table myTable with 3 columns. col_1 is an INTEGER and the other 2 columns are DOUBLE. For example, col_1={1, 2}, …

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sql group-by db2 partition-by
Rank() over Partition by in mysql

I'm completely stumped as to create a new column "LoginRank" from rank() over(partition by x, order by y desc) …

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mysql window-functions rank partition-by
Specified partition columns do not match the partition columns of the table.Please use () as the partition columns

here i'm trying to persist the data frame in to a partitioned hive table and getting this silly exception. I …

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scala hadoop hive external-tables partition-by