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法律研究MySQL 复制：是否可以暂时阻止某些 SQL 语句复制到从属数据库？
要实现此功能，你需要将 sql_log_bin 设置为 0。为了理解这个概念，让我们创建一个表。创建表的查询如下
mysql> create table SQLStatementsDemo -> ( -> UserId int NOT NULL AUTO_INCREMENT PRIMARY KEY, -> UserName varchar(20) -> ); Query OK, 0 rows affected (0.79 sec)
使用 insert 命令在表中插入一些记录。查询如下 −
mysql> insert into SQLStatementsDemo(UserName) values('John');
Query OK, 1 row affected (0.18 sec)
mysql> insert into SQLStatementsDemo(UserName) values('Carol');
Query OK, 1 row affected (0.14 sec)
mysql> insert into SQLStatementsDemo(UserName) values('Bob');
Query OK, 1 row affected (0.14 sec)
mysql> insert into SQLStatementsDemo(UserName) values('Mike');
Query OK, 1 row affected (0.14 sec)
mysql> insert into SQLStatementsDemo(UserName) values('Sam');
Query OK, 1 row affected (0.14 sec)
mysql> insert into SQLStatementsDemo(UserName) values('David');
Query OK, 1 row affected (0.14 sec)使用 select 语句显示表中的所有记录。查询如下 −
mysql> select *from SQLStatementsDemo;
以下是输出
+--------+----------+ | UserId | UserName | +--------+----------+ | 1 | John | | 2 | Carol | | 3 | Bob | | 4 | Mike | | 5 | Sam | | 6 | David | +--------+----------+ 6 rows in set (0.00 sec)
以下查询实现了 SQL 语句的 MySQL 复制
mysql> SET sql_log_bin=0;
Query OK, 0 rows affected (0.00 sec)
mysql> update SQLStatementsDemo set UserName='Maxwell' where UserId=6;
Query OK, 1 row affected (0.05 sec)
Rows matched: 1 Changed: 1 Warnings: 0
mysql> select *from SQLStatementsDemo;
+--------+----------+
| UserId | UserName |
+--------+----------+
| 1 | John |
| 2 | Carol |
| 3 | Bob |
| 4 | Mike |
| 5 | Sam |
| 6 | Maxwell |
+--------+----------+
6 rows in set (0.00 sec)
mysql> insert into SQLStatementsDemo(UserName) values('Chris');
Query OK, 1 row affected (0.16 sec)
mysql> select *from SQLStatementsDemo;
+--------+----------+
| UserId | UserName |
+--------+----------+
| 1 | John |
| 2 | Carol |
| 3 | Bob |
| 4 | Mike |
| 5 | Sam |
| 6 | Maxwell |
| 7 | Chris |
+--------+----------+
7 rows in set (0.00 sec)
mysql> delete from SQLStatementsDemo where UserId=7;
Query OK, 1 row affected (0.10 sec)
mysql> SET sql_log_bin=1 ;
Query OK, 0 rows affected (0.00 sec)
更新日期：2019-07-30
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