character_set_server和collation_server: MySQL Server的Character Set 和 Collation; character_set_database和collation_database:数据库的Character Set 和 Collation; character_set_client:MySQL Server使用此session变量的cha
Character Set是MySQL中的关键字,如果直接翻译过来的话就是字符集。 我们可以使用 show character set 命令来查看MySQL所支持的所有character set: 第一栏的Charset是MySQL中Character Set的名字,Description这一栏表明了其所使用的编码方式和字符集。比如上图中的utf8这个Character Set,在MySQL中表示所使用的编码方式为...
MySQL Server supports multiple character sets, including several Unicode character sets. To display the available character sets, use the INFORMATION_SCHEMA CHARACTER_SETS table or the SHOW CHARACTER SET statement. A partial listing follows. For more complete information, see Section 1.10, “Supported ...
MySQL Server has a server character set and a server collation. These can be set at server startup on the command line or in an option file and changed at runtime. 10.1.3.2 Database Character Set and Collation Every database has a database character set and a database collation. The ch...
MySQL中如何开启事务: begin / start transaction -- 手工 commit / rollback -- 事务提交或回滚 set session autocommit = on/off; -- 设定事务是否自动开启 1. 2. 3. JDBC编程开启事务 connection.setAutoCommit(boolean); true:sql命令的提交(commit)由驱动程序负责 ...
# 设置mysql客户端默认字符集default-character-set=utf8 [client] # 设置mysql客户端连接服务端时默认使用的端口 port=3306 default-character-set=utf8 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19.
int mysql_set_character_set(MYSQL * mysql, const char * csname); mysql - a mysql handle, which was previously allocated by mysql_init() or mysql_real_connect(). csname - character set name Description Sets the default character set for the current connection. Returns zero on success...
MySQL chooses the database character set and database collation in the following manner: If both CHARACTER SET charset_name and COLLATE collation_name are specified, character set charset_name and collation collation_name are used. If CHARACTER SET charset_name is specified without COLLATE, charact...
1 row in set (0.00 sec) 列字符集和校对规则 MySQL 可以定义列级别的字符集和校对规则,主要是针对相同的表不同字段需要使用不同的字符集的情况,应该说一般遇到这种情况的几率比较小,这只是 MySQL 提供给我们一个灵活设置的手段。 列字符集和校对规则的定义可以在创建表时指定,或者在修改表时调整,如果在创建表...
I use Net Framework 4.5.2, MySQL Connector Net 8.0.29, MySQL for Visual Studio 1.2.8 (I try to load tables to Visual Studio 2013). The error I get is "Character set 'utf8mb3' is not supported by .Net Framework". I did convert every table to utf8mb4, the issue still subsists....