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今天就跟大家聊聊有關(guān)如何進(jìn)行MySQL環(huán)境變量里關(guān)于字符集character相關(guān)參數(shù)的分析,可能很多人都不太了解,為了讓大家更加了解,小編給大家總結(jié)了以下內(nèi)容,希望大家根據(jù)這篇文章可以有所收獲。
查看字符集參數(shù)變量:
mysql> show variables like '%char%';
+--------------------------+----------------------------------------------------
-----------+
| Variable_name | Value
|
+--------------------------+----------------------------------------------------
-----------+
| character_set_client | gbk
|
| character_set_connection | gbk
|
| character_set_database | gbk
|
| character_set_filesystem | binary
|
| character_set_results | gbk
|
| character_set_server | utf8
|
| character_set_system | utf8
|
| character_sets_dir | C:\Program Files (x86)\MySQL\MySQL Server 5.5\share
\charsets\ |
+--------------------------+----------------------------------------------------
-----------+
8 rows in set (0.00 sec)
character_set系列參數(shù)的解釋:
· character_set_client
來自客戶端的語(yǔ)句的字符集。
· character_set_connection
用于沒有字符集導(dǎo)入符的文字和數(shù)字-字符串轉(zhuǎn)換。
· character_set_database
默認(rèn)數(shù)據(jù)庫(kù)使用的字符集。當(dāng)默認(rèn)數(shù)據(jù)庫(kù)更改時(shí),服務(wù)器則設(shè)置該變量。如果沒有默認(rèn)數(shù)據(jù)庫(kù),變量的值同character_set_server。
· character_set_results
用于向客戶端返回查詢結(jié)果的字符集。
· character_set_ server
服務(wù)器的默認(rèn)字符集。
· character_set_system
服務(wù)器用來保存識(shí)別符的字符集。該值一定是utf8。
· character_sets_dir
字符集安裝目錄。
· collation_connection
連接字符集的校對(duì)規(guī)則。
· collation_database
默認(rèn)數(shù)據(jù)庫(kù)使用的校對(duì)規(guī)則。當(dāng)默認(rèn)數(shù)據(jù)庫(kù)改變時(shí)服務(wù)器則設(shè)置該變量。如果沒有默認(rèn)數(shù)據(jù)庫(kù),變量的值同collation_server。
· collation_server
服務(wù)器的默認(rèn)校對(duì)規(guī)則。
支持的字符集有:
mysql> SHOW CHARACTER SET;
+----------+-----------------------------+---------------------+--------+
| Charset | Description | Default collation | Maxlen |
+----------+-----------------------------+---------------------+--------+
| big5 | Big5 Traditional Chinese | big5_chinese_ci | 2 |
| dec8 | DEC West European | dec8_swedish_ci | 1 |
| cp850 | DOS West European | cp850_general_ci | 1 |
| hp8 | HP West European | hp8_english_ci | 1 |
| koi8r | KOI8-R Relcom Russian | koi8r_general_ci | 1 |
| latin1 | cp1252 West European | latin1_swedish_ci | 1 |
| latin2 | ISO 8859-2 Central European | latin2_general_ci | 1 |
| swe7 | 7bit Swedish | swe7_swedish_ci | 1 |
| ascii | US ASCII | ascii_general_ci | 1 |
| ujis | EUC-JP Japanese | ujis_japanese_ci | 3 |
| sjis | Shift-JIS Japanese | sjis_japanese_ci | 2 |
| hebrew | ISO 8859-8 Hebrew | hebrew_general_ci | 1 |
| tis620 | TIS620 Thai | tis620_thai_ci | 1 |
| euckr | EUC-KR Korean | euckr_korean_ci | 2 |
| koi8u | KOI8-U Ukrainian | koi8u_general_ci | 1 |
| gb2312 | GB2312 Simplified Chinese | gb2312_chinese_ci | 2 |
| greek | ISO 8859-7 Greek | greek_general_ci | 1 |
| cp1250 | Windows Central European | cp1250_general_ci | 1 |
| gbk | GBK Simplified Chinese | gbk_chinese_ci | 2 |
| latin5 | ISO 8859-9 Turkish | latin5_turkish_ci | 1 |
| armscii8 | ARMSCII-8 Armenian | armscii8_general_ci | 1 |
| utf8 | UTF-8 Unicode | utf8_general_ci | 3 |
| ucs2 | UCS-2 Unicode | ucs2_general_ci | 2 |
| cp866 | DOS Russian | cp866_general_ci | 1 |
| keybcs2 | DOS Kamenicky Czech-Slovak | keybcs2_general_ci | 1 |
| macce | Mac Central European | macce_general_ci | 1 |
| macroman | Mac West European | macroman_general_ci | 1 |
| cp852 | DOS Central European | cp852_general_ci | 1 |
| latin7 | ISO 8859-13 Baltic | latin7_general_ci | 1 |
| utf8mb4 | UTF-8 Unicode | utf8mb4_general_ci | 4 |
| cp1251 | Windows Cyrillic | cp1251_general_ci | 1 |
| utf16 | UTF-16 Unicode | utf16_general_ci | 4 |
| cp1256 | Windows Arabic | cp1256_general_ci | 1 |
| cp1257 | Windows Baltic | cp1257_general_ci | 1 |
| utf32 | UTF-32 Unicode | utf32_general_ci | 4 |
| binary | Binary pseudo charset | binary | 1 |
| geostd8 | GEOSTD8 Georgian | geostd8_general_ci | 1 |
| cp932 | SJIS for Windows Japanese | cp932_japanese_ci | 2 |
| eucjpms | UJIS for Windows Japanese | eucjpms_japanese_ci | 3 |
+----------+-----------------------------+---------------------+--------+
39 rows in set (0.11 sec)
mysql>
看完上述內(nèi)容,你們對(duì)如何進(jìn)行MySQL環(huán)境變量里關(guān)于字符集character相關(guān)參數(shù)的分析有進(jìn)一步的了解嗎?如果還想了解更多知識(shí)或者相關(guān)內(nèi)容,請(qǐng)關(guān)注億速云行業(yè)資訊頻道,感謝大家的支持。
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