mysql - 使用 select : ! 插入 #1062 - key '222-104276' 的重复条目 'cry_id'

Question

我有一个下表:

dct_cry_id............cry_id............dct_id......分类......dct_connection_id (...) 71.................13.................104276......................... ...70.........0 2110......................29............104276............ .7.........................0 2111......................37.......104276............ .8......................0 2112......................38.......104276............ .6......................0 (...) 591......................13......154614............ ..540..................0 2090......................36.......154614............ .46......................0 2091......................30.......154614............ .2........................0 (...)

我使用以下查询

I use following query
INSERT INTO mytabletest1 (cry_id,`dct_id`)
-- VALUES (222)
SELECT  
222, `dct_id`

FROM `mytabletest1`
WHERE `cry_id`
NOT IN 
(
112, 115, 116, 117, 118,
973, 974, 975, 976, 977,
8 
)

不幸的是，我有以下警告/错误消息:

"! #1062 - Duplicate entry '222-104276' for key 'cry_id'"

为什么我收到此消息？

此后，我检查了我的表格，我的查询有效: dct_cry_id............cry_id............dct_id............分类......dct_connection_id (...) 71.................13.................104276......................... ...70.........0 2110......................29............104276............ .7.........................0 2111......................37.......104276............ .8......................0 2112......................38.......104276............ .6......................0 153876........................222.................104276........................ .0........................0 (...) 591......................13......154614............ ..540..................0 2090......................36.......154614............ .46......................0 2091......................30.......154614............ .2........................0 15870......................222......154614............ ..0......................0 (...)

Answer 1

您的查询将返回键“222-104276”4 次。该记录已插入一次，第二次插入时出现错误。