SQL> select DISTRICT id from wjy;select DISTRICT id from wjyORA-00904: "DISTRICT": 无效的标识符SQL> select DISTinct id from wjy; ID
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1
2
21
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27
289 rows selected
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1
2
21
22
24
25
26
27
289 rows selected
“DISTRICT district6 --------------------出错的地方“
我在上面没找到district6哎。