root@localhost : test 10:15:09>update me_info set realName='周吴郑王',contactAddress='浙江vv杭州vv北京'; Query OK, 84183 rows affected (1.56 sec) Rows matched: 84183 Changed: 84183 Warnings: 0 root@localhost : test 11:11:08>select id,realName,contactAddress from me_info limit 3; +-...
在server5.1.*的返回分别为insert=1,update=3,nochange=2 在server5.5.*的返回分别为insert=1,update=2,nochange=1 应返回:insert=1,update=2,nochange=0 使用mysql-connector-java-*.jar不当导致。修正为:jdbc:mysql://ip:port/db?useAffectedRows=true&… useAffectedRows的含义 : 是否用受影响的行数替...
root@localhost : test10:15:09>update me_infoset realName='周吴郑王',contactAddress='浙江vv杭州vv北京'; Query OK,84183 rows affected (1.56sec) Rows matched:84183 Changed:84183 Warnings:0root@localhost : test11:11:08>select id,realName,contactAddressfrom me_info limit3;+---+---+---+|...
printf("Affected rows (UPDATE): %dn", $mysqli->affected_rows); /* delete rows */ $mysqli->query("DELETE FROM Language WHERE Percentage < 50″); printf("Affected rows (DELETE): %dn", $mysqli->affected_rows); /* select all rows */ $result = $mysqli->query("SELECT CountryCode ...
在server5.1.*的返回分别为insert=1,update=3,nochange=2 在server5.5.*的返回分别为insert=1,update=2,nochange=1 应返回:insert=1,update=2,nochange=0 使用mysql-connector-java-*.jar不当导致。修正为:jdbc:mysql://ip:port/db?useAffectedRows=true&… ...
NULL | +---+---+ 1 row in set (0.01 sec) mysql> update tn set value=NULL; Query OK, 1 row affected (0.00 sec) Rows matched: 2 Changed: 1 Warnings: 0 mysql> update tn set value=NULL; Query OK, 0 rows affected (0.01 sec) Rows matched: 2 Changed: 0 Warnings: 0[12 Dec 20...
I am using: MySQL 8 .net 5 Dapper MySqlConnector Running this query from my .net project returns 2 rows affected when there is no change to the settings. INSERT INTO usersettings (user, settings) VALUES (1, '[]') AS insertion ON DUPLICAT...
Mysql的UseAffectedRows问题以及其他常见配置说明转载: 原⽂地址https://blog.csdn.net/wysnxzm/article/details/68922305 遇到MySQL中on duplicate key update语句返回值不正确：在server5.1.*的返回分别为insert=1,update=3,nochange=2 在server5.5.*的返回分别为insert=1,update=2,nochange=1 应返回：insert...
很简单，只需判断是否执行成功即可，没必要判断返回影响行数或记录数。例如：sql="update $table set $vl where $w";result=$this->query($sql);//$result执行结果有两种：成功:true; 失败：false；然后根据自己需要处理就行了。return $result;