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Which SQL statements are valid? (Choose all that apply.)
A. SELECT promo_id, DECODE(NULLIF(promo_cost, 10000),
NULL, promo_cost*.25, 'N/A') "Catcost"
FROM promotions;
B. SELECT promo_id, DECODE(NVL(promo_cost,0), promo_cost,
promo_cost * 0.25, 100) "Discount"
FROM promotions;
C. SELECT promo_id, DECODE(promo_cost, 10000,
DECODE(promo_category, 'G1', promo_cost *.25, NULL),
NULL) "Catcost"
FROM promotions;
D. SELECT promo_id, DECODE(promo_cost, >10000, 'High',
<10000, 'Low') "Range"
FROM promotions;
Answer: B,C
Explanation:
The DECODE Function Although its name sounds mysterious, this function is straightforward. The DECODE function implements ifthen-else conditional logic by testing its first two terms for equality and returns the third if they are equal and optionally returns another term if they are not. The DECODE function takes at least three mandatory parameters, but can take many more. The syntax of the function is DECODE(expr1,comp1, iftrue1, [comp2,iftrue2...[ compN,iftrueN]], [iffalse]).

NEW QUESTION: 2
Which statement is true about Member Company?
A. It is the company that is a subset of the owner company.
B. It is the company that is hosting the project.
C. It is the company that is invited to work within a Unifier project or Shell.
D. It is the company that bought Unifier.
Answer: C

NEW QUESTION: 3
The data is not updating in the database. Using the BigFix Deployment Health Checks in the IBM Tivoli Endpoint Manager Console, where is it verified that collected data is entered in the database?
A. InsertDB Bufferdir File Count
B. GatherDB Bufferdir File Count
C. CollectDB Bufferdir File Count
D. FillDB Bufferdir File Count
Answer: D

NEW QUESTION: 4
What is an advantage of using row processing instead of set processing for a large table?
A. Decreased resources required when updating many rows
B. Increased synchronized scanning
C. Increased read-ahead capabilities
D. Decreased locking contention
Answer: A