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- 单项选择题 Given the following two tables: TAB1 C1 C2 A 11 B 12 C 13 TAB2 CX CY A 21 C 22 D 23 The following results are desired: C1 C2 CX CY A 11 A 21 C 13 C 22 -- --D 23 Which of the following queries will yield the desired results?（）
A、SELECT * FROM tab1 INNER JOIN tab2 ON c1=cx
B、SELECT * FROM tab1 LEFT OUTER JOIN tab2 ON c1=cx
C、SELECT * FROM tab1 FULL OUTER JOIN tab2 ON c1=cx
D、SELECT * FROM tab1 RIGHT OUTER JOIN tab2 ON c1=cx
- D
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