OCP-1Z0-051 第96題 NVL2函式的詳細用法

阿新 • • 發佈：2019-01-26

Examine the structure of the INVOICE table.
name                Null           Type
INV_NO             NOT NULL       NUMBER(3)
INV_DATE                          DATE
INV_AMT                           NUMBER(10,2)
Which two SQL statements would execute successfully? (Choose two.)
A. SELECT inv_no,NVL2(inv_date,'Pending','Incomplete')
        FROM invoice;

B. SELECT inv_no,NVL2(inv_amt,inv_date,'Not Available')
       FROM invoice;

C. SELECT inv_no,NVL2(inv_date,sysdate-inv_date,sysdate)
        FROM invoice;

D. SELECT inv_no,NVL2(inv_amt,inv_amt*.25,'Not Available')
        FROM invoice;

答案：AC

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