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C_HANAIMP142 Exam Dumps

C_HANAIMP142 Exam Dumps

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QUESTION 1
A customer wants to reproduce the following SQL statement in SAP HANA:
SELECT P.PROD_NAME, P.PROD_ID, PT.PROD_DESC
FROM PRODUCTS P,
PROD_TEXTS PT
WHERE P.PROD_ID=PT.PROD_ID;
Which of the following SQLScript constructs is equivalent to this SQL statement and yields the best performance?

A.    ot_products= CE_COLUMN_TABLE(PRODUCTS);
ot_prodtexts= CE_COLUMN_TABLE(PROD_TEXTS);
ot_all=CE_JOIN(:ot_products, :ot_prodtexts, [PROD_ID]);
output=CE_PROJECTION(:ot_all, [PROD_NAME, PROD_ID, PROD_DESC]);
B.    SELECT P.PROD_NAME, P.PROD_ID, NULL as PROD_DESC
FROM PRODUCTS P UNION
SELECT NULL as PROD_NAME, PT.PROD_ID, PT.PROD_TEXTS
FROM PROD_TEXTS PT;
C.    SELECT P.PROD_NAME, P.PROD_ID, PT.PROD_DESC FROM PRODUCTS P
JOIN PROD_TEXTS PT ON P.PROD_ID=PT.PROD_ID;
D.    ot_products= CE_COLUMN_TABLE(PRODUCTS);
ot_prodtexts= CE_COLUMN_TABLE(PROD_TEXTS);
ot_all=CE_UNION_ALL(:ot_products, :ot_prodtexts);
output=CE_PROJECTION(:ot_all, [PROD_NAME, PROD_ID, PROD_DESC]);