原文:關於MySQL:ERROR 1022 (23000): Can't write; duplicate key in table 'test4'

ERROR :Can twrite duplicatekeyintable test :在為 test 表設置外鍵時.外鍵名與已有的外鍵名重復 代碼如下,注意加粗部分 錯誤代碼: mysql gt createtabletest gt idint, gt cp namevarchar , gt constrainttest fkforeignkey cp name referencesstuden ...

2015-08-30 00:44 0 9818 推薦指數:

查看詳情

[Err] 1022 - Can't write; duplicate key in table '#sql-1500_26'

今天用powerdesigner修改了一些外鍵關系,有兩個外鍵的名字取一樣的,忘記改了。然后在用navicat運行sql文件時,報出[Err] 1022 - Can't write; duplicate key in table '#sql-1500_26'的錯誤 ...

Sat Nov 16 19:35:00 CST 2013 0 20748
ERROR 1062 (23000): Duplicate entry '1-1' for key 'PRIMARY'

這個錯誤是說,由於某個SQL操作造成了,表中主鍵重復。 例子:   create table t(x int,y int,z int, primary key(x,y));   insert into t(x,y,z) values(1,1,0),(1,2,0),(1,3,0 ...

Fri Jul 10 00:48:00 CST 2015 0 2459
 
粵ICP備18138465號   © 2018-2025 CODEPRJ.COM