回答編集履歴
1
chousei
test
CHANGED
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@@ -6,6 +6,8 @@
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6
6
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```SQL
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8
8
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9
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+
create table test (id int primary key,test1 int,test2 int, test3 int,unique key `test_test` (`test1`,`test2`));
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+
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alter table test drop index `test_test`, add unique `test_test` (`test1`,`test2`,`test3`);
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```
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