论坛 › Oracle运维 › oracle constraint: primary key

x625802392 发表于 2018-9-12 09:34:40

oracle constraint: primary key

　　oracle中表创建完成后添加主键约束有两种方法：
　　alter table table_name modify column_name primary key;
　　or
　　alter table table_name add constraint constraint_name primary key (column_name);

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