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📜  如何子查询不加载到实时数据库中 - SQL 代码示例

📅  最后修改于: 2022-03-11 15:05:32.729000             🧑  作者: Mango

代码示例1
select * from colours c
where  exists (
  select null from bricks b
  where  b.colour = c.colour_name 
  and    b.brick_id < 5
);