回答編集履歴
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調整
test
CHANGED
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@@ -1 +1,17 @@
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新テーブルのname、colorに複合ユニーク属性をつけて、insert ignore intoすればよいでしょう
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# 参考
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4
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```SQL
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5
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create table tbl_a (id int primary key,name varchar(10),color varchar(10),quantity int);
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6
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insert into tbl_a values
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7
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(1,'apple','red',5),
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8
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(2,'apple','green',3),
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9
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(3,'apple','red',2),
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10
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(4,'apple','yellow',1),
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11
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(5,'banana','yellow',3),
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12
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(6,'banana','green',1),
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13
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(7,'banana','green',2),
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14
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(8,'banana','green',3);
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15
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;
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16
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select * from tbl_a as t1 where not exists(select 1 from tbl_a where name=t1.name and color=t1.color and id<t1.id);
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17
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```
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