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Records: 4  Duplicates: 0  Warnings: 0
id name gender age hobby
1 John male 23 basketball
2 May female 32 baseball
3 Tom both 25 sleep
4 Gary male 50 coding
Records: 4  Duplicates: 0  Warnings: 0
id name grades user_id department_id
1 日本經典成人文學 2 1 1
2 程式與海 3 1 2
3 一個開發者的誕生 3 2 2
4 維尼的包子 3 null 1
id name grades user_id department_id id name gender age hobby
1 日本經典成人文學 2 1 1 1 John male 23 basketball
2 程式與海 3 1 2 1 John male 23 basketball