QUESTION NO: 47
Which three are true? (Choose three.)
A. A MERGE statement is used to merge the data of one table with data from another. 南京OCP培训
B. A MERGE statement replaces the data of one table with that of another.
C. A MERGE statement can be used to insert new rows into a table.
D. A MERGE statement can be used to update existing rows in a table.
Answer: A,C,D
答案解析:
Explanation: The MERGE Statement allows you to conditionally insert or update data in a table. If
the rows are present in the target table which match the join condition, they are updated if the
rows are not present they are inserted into the target table 南京OCP培训
拓展阅读:
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