Exit 1Z0-074 Upgrade Oracle DBA 11g or 12c to 12c R2
Question 1 of 5
0% complete
Q1 Multiple choice

Which two statements are true about a band join? (Choose two.)

Select all that apply.

  • A

    The optimizer always uses the smaller of the two row sources to build a hash table on the join key.

  • B

    It returns rows for SQL statements that contain an equijoin.

  • C

    It is a non-equijoin in which the key values in one data set must fall within the specified range of the second data set.

  • D

    For each row in the first row source, Oracle probes the second row source for matching rows and joins them.

  • E

    The SQL runtime engine avoids unnecessary scanning of rows that fall outside the defined ranges.

Previous Next