꿈라CBT아래 SQL 의 WHERE 조건과 동일한 의미를 가지는 것은?
보기
SELECT * FROM T WHERE (COL1, COL2) IN ((1, 3), (1, 4));
- 1SELECT * FROM T WHERE COL1 = 1 AND COL2 = 3;
- 2SELECT * FROM T WHERE COL1 = 1 OR COL2 IN (3, 4);
- 3SELECT * FROM T WHERE COL1 IN (1, 3) AND COL2 IN (1, 4);
- 4SELECT * FROM T WHERE COL1 = 1 AND (COL2 = 3 OR COL2 = 4);