mysql小记：字符数，字节数

SQL>show variables like 'character%';

Variable_name             Value                        
------------------------  ------------------------------
character_set_client      utf8                         
character_set_connection  utf8                         
character_set_database    utf8                         
character_set_filesystem  binary                       
character_set_results     utf8                         
character_set_server      utf8                         
character_set_system      utf8                         
character_sets_dir        D:\jsmsa\mysql\share\charsets\

 

SQL>CREATE TABLE `zzzz` (                                                                                                  
          `id` int(10) NOT NULL auto_increment,                                                                                
          `f1` varchar(50) collate utf8_bin default NULL,