与插入相同的重复密钥更新

On Duplicate Key Update same as insert(与插入相同的重复密钥更新)

问题描述

我四处寻找，但没有找到是否可行.

I've searched around but didn't find if it's possible.

我有这个 MySQL 查询:

I've this MySQL query:

INSERT INTO table (id,a,b,c,d,e,f,g) VALUES (1,2,3,4,5,6,7,8)

字段 id 有一个唯一索引"，所以不能有两个.现在，如果数据库中已经存在相同的 id，我想更新它.但是我真的必须再次指定所有这些字段，例如:

Field id has a "unique index", so there can't be two of them. Now if the same id is already present in the database, I'd like to update it. But do I really have to specify all these field again, like:

INSERT INTO table (id,a,b,c,d,e,f,g) VALUES (1,2,3,4,5,6,7,8) 
ON DUPLICATE KEY UPDATE a=2,b=3,c=4,d=5,e=6,f=7,g=8

或者:

INSERT INTO table (id,a,b,c,d,e,f,g) VALUES (1,2,3,4,5,6,7,8) 
ON DUPLICATE KEY UPDATE a=VALUES(a),b=VALUES(b),c=VALUES(c),d=VALUES(d),e=VALUES(e),f=VALUES(f),g=VALUES(g)

我已经在插入中指定了所有内容...

I've specified everything already in the insert...

额外说明，我想使用变通方法来获取 ID！

A extra note, I'd like to use the work around to get the ID to!

id=LAST_INSERT_ID(id)

我希望有人能告诉我最有效的方法是什么.

I hope somebody can tell me what the most efficient way is.

推荐答案

没有别的办法，我必须把所有东西都指定两次.第一个用于插入，第二个用于更新案例.

There is no other way, I have to specify everything twice. First for the insert, second in the update case.

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