character_set_client 在客戶端發(fā)出SQL語句所使用的字符集。
collation_connection 連接所使用的字符集校對規(guī)則
character_set_results 返回到客戶端的查詢結果集(例如查詢結果或錯誤信息)所使用的字符集
character_set_connection The character set used for literals that do not have a character set introducer and for number-to-string conversion
--指定客戶端當前會話使用的字符集 SET NAMES會同時更改character_set_client, character_set_connection,character_set_results這三個會話參數(shù)的字符集
MySQL>
set names utf8; Query OK, 0 rows affected (0.00 sec)
mysql> show variables like '%character%';
+--------------------------+-----------------------+
| Variable_name | Value |
+--------------------------+-----------------------+
| character_set_client | utf8 |
| character_set_connection | utf8 |
| character_set_database | gbk |
| character_set_filesystem | binary |
| character_set_results | utf8 |
| character_set_server | gbk |
| character_set_system | utf8 |
| character_sets_dir | /data/share/charsets/ |
+--------------------------+-----------------------+
8 rows in set (0.00 sec)
SET CHARACTER SET會更改character_set_client、character_set_results,同時將character_set_connection設置為character_set_database這個系統(tǒng)參數(shù)的值
mysql>
set character set latin2; Query OK, 0 rows affected (0.01 sec)
mysql> show variables like '%character%';
+--------------------------+-----------------------+
| Variable_name | Value |
+--------------------------+-----------------------+
| character_set_client | latin2 |
| character_set_connection | gbk |
| character_set_database | gbk |
| character_set_filesystem | binary |
| character_set_results | latin2 |
| character_set_server | gbk |
| character_set_system | utf8 |
| character_sets_dir | /data/share/charsets/ |
+--------------------------+-----------------------+
8 rows in set (0.00 sec)
網(wǎng)站名稱:MySQL5.5客戶端字符集相關參數(shù)
轉載源于:http://muchs.cn/article0/jchooo.html
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