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boostr.in questions - Question:Which of the following is true when the sparse data is densified using partitioned outer joins?
a. ¬†¬†¬†¬†¬†¬†¬†The missing data must be filled in by zeros
b. ¬†¬†¬†¬†¬†¬†¬†The IGNORE NULLS clause can be used with the LAST_VALUE function to replace the missing values with the most recent non-NULL value in that column
c. ¬†¬†¬†¬†¬†¬†¬†The missing data must be filled in by NULLs
d. ¬†¬†¬†¬†¬†¬†¬†The missing data must be provided by updating the column with the missing values
Sep 13, 2013
Sep 12, 2013
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