与插入相同的重复密钥更新
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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