下面的语句返回重复行的 id 集合: SELECTidFROM(SELECTid,ROW_NUMBER()OVER(PARTITIONBYemailORDERBYemail)ASrow_numFROMcontacts ) tWHERErow_num>1; 然后,你只要使用在WHERE分句中带有一个子查询的DELETE语句从 contacts 表中删除重复的行即可: DELETEFROMcontactsWHEREidIN(SELECTidFROM(SELECTid,ROW_NUMBER()OVE...
Duplicate rowsPosted by: James Medick Date: June 15, 2020 04:45PM I have two tables, one Assets and one System Assets. Assets contains all asssets, system assets contain only specific assets assigned to a specific system. I'm trying to write a query where I can list all of the ...
Last_SQL_Errno: 1062 (从库与主库数据冲突) Last_Errno: 1062 Last_Error: Could not execute Write_rows event on table test.t; Duplicate entry ‘4’ for key ‘PRIMARY’, Error_code: 1062; handler error HA_ERR_FOUND_DUPP_KEY; the event’s master log mysql-bin.000014, end_log_pos 1505...
user where user='root1' and host='localhost' \G; *** 1. row *** : localhost User: root1 Select_priv: N Insert_priv: N Update_priv: N Delete_priv: N Create_priv: N Drop_priv: N Reload_priv: N Shutdown_priv: N ... 1 row in set ( sec) ###赋予root1账号所有权限 mysql...
Query OK,1row affected (0.00sec) 回到slave库查看同步状态: Replicate_Wild_Ignore_Table: Last_Errno:1062Last_Error: CouldnotexecuteWrite_rows eventontablexuanzhi.test; Duplicate entry'5'forkey'PRIMARY', Error_code:1062; handler error HA_ERR_FOUND_DUPP_KEY; the event's master log mysql-bin....
十、Duplicate entry: XXXX 此类错误分为三种: 原因:【数据变更】的DML数据insert、update遇到,此时是表上存在的唯一约束/索引已有对应数据; 处理方法:确认唯一约束/索引的合理性、原唯一键值数据是否合理,若均合理的话再确认当前需求是否需要调整。 原因:【结构设计】的DDL的加唯一约束/索引、调整唯一约束/索引(包含...
With ON DUPLICATE KEY UPDATE, the affected-rows value per row is 1 if the row is inserted as...
for column "user_name" at row 1 报错原因: 因为insert into插入的数据时,某一个字段带有表情(微信登录);正常utf-8编码可能有2,3,4字节,那么emoji表情或者某些特殊字符是4个字节,而mysql的utf8编码最多3个字节,所以导致插入数据失败;应该很多初学者会遇到这样的问题...
row_ins_clust_index_entry_low => row_ins_duplicate_error_in_clust 对于普通的INSERT操作, 当需要检查primary key unique时, 加 S record lock. 而对于Replace into 或者 INSERT ON DUPLICATE操作, 则加X record lock 这里check unique 的时候, 如果这里没有这个 record 存在, 加在下一个 record上, 如果...
I have table with duplicate student id's. I want to find the latest test score (by date) copy that value into a new column that is on the same row as the oldest date? I can't figure where to start? Any ideas? Thank You