回答編集履歴
1
chousei
test
CHANGED
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@@ -1,4 +1,28 @@
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1
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```SQL
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create table tbl1(ID varchar(10),code varchar(10));
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insert into tbl1 values
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('AAA','aaa111'),
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('AAA','bbb111'),
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10
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('AAA','aaa111'),
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('BBB','aaa111');
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create table tbl2(ID varchar(10),mail varchar(10));
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insert into tbl2 values
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('AAA',' aaa@'),
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('BBB',' bbb@');
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27
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select * from(
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28
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