请问以下的两个该如何映射
create table table1 (
id number primary key
)create table table2 (
id number primary key,
table1_id number references table1(id) on delete case
)
create table table1 (
id number primary key
)create table table2 (
id number primary key,
table1_id number references table1(id) on delete case
)
解决方案 »
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