题解 |
对first_name创建唯一索引uniq_idx_firstname
https://www.nowcoder.com/practice/e1824daa0c49404aa602cf0cb34bdd75
CREATE UNIQUE INDEX uniq_idx_firstname ON actor(first_name); CREATE INDEX idx_lastname ON actor(last_name)
对first_name创建唯一索引uniq_idx_firstname
https://www.nowcoder.com/practice/e1824daa0c49404aa602cf0cb34bdd75
CREATE UNIQUE INDEX uniq_idx_firstname ON actor(first_name); CREATE INDEX idx_lastname ON actor(last_name)
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