mysql의 문자 집합을 쿼리하는 방법

방법: 1. MYSQL에서 지원하는 문자 집합을 보기 위한 "show charset" 문; 2. 라이브러리의 문자 집합을 보기 위한 "show create 데이터베이스 라이브러리 이름 G" 문 3. "테이블 이름의 전체 열 보기" 테이블의 모든 열에 대한 문자 집합을 보려면

이 튜토리얼의 운영 환경: windows7 시스템, mysql8 버전, Dell G3 컴퓨터.

문자셋 확인

1. MYSQL 데이터베이스 서버 및 데이터베이스 문자셋 확인

方法一：show variables like '%character%';
方法二：show variables like 'collation%';

방법 1:

mysql> 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       | /usr/local/mysql5535/share/charsets/ |
+--------------------------+--------------------------------------+
8 rows in set (0.00 sec)

방법 2:

mysql> show variables like 'collation%';
+----------------------+-----------------+
| Variable_name        | Value           |
+----------------------+-----------------+
| collation_connection | utf8_general_ci |
| collation_database   | utf8_general_ci |
| collation_server     | utf8_general_ci |
+----------------------+-----------------+
3 rows in set (0.00 sec)

2. 문자 확인 지원되는 세트 by MYSQL

show charset를 사용하여 MYSQL

mysql> show charset;
+----------+-----------------------------+---------------------+--------+
| 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 (0.00 sec)

3에서 지원하는 문자 집합을 확인하세요. 라이브러리의 문자 집합을 확인하세요

구문: ​​show create 데이터베이스 데이터베이스 G;show create database 数据库G;

mysql> show create database shiyan\G
*************************** 1. row ***************************
       Database: shiyan
Create Database: CREATE DATABASE `shiyan` /*!40100 DEFAULT CHARACTER SET gbk */
1 row in set (0.00 sec)

4、查看表的字符集

语法：show table status from 库名 like  表名;

mysql> show table status from class_7 like 'test_info';
+-----------+--------+---------+------------+------+----------------+-------------------------+-------------+------------+-----------------+----------+-
| Name      | Engine | Version | Row_format | Rows | Avg_row_length | Data_leate_time         | Update_time | Check_time | Collation       | Checksum | 
+-----------+--------+---------+------------+------+----------------+-------------------------+-------------+------------+-----------------+----------+-
| test_info | InnoDB |      10 | Compact    |   10 |           1638 |       17-12-05 19:01:55 | NULL        | NULL       | utf8_general_ci |     NULL | 
+-----------+--------+---------+------------+------+----------------+-------------------------+-------------+------------+-----------------+----------+-
1 row in set (0.00 sec)

5、查看表中所有列的字符集

语法：show full columns from 表名;

mysql> show full columns from test_info;
+-------+----------+-----------------+------+-----+---------+-------+---------------------------------+---------+
| Field | Type     | Collation       | Null | Key | Default | Extra | Privileges                      | Comment |
+-------+----------+-----------------+------+-----+---------+-------+---------------------------------+---------+
| id    | int(3)   | NULL            | NO   | PRI | NULL    |       | select,insert,update,references |         |
| name  | char(12) | utf8_general_ci | YES  |     | NULL    |       | select,insert,update,references |         |
| dorm  | char(10) | utf8_general_ci | YES  |     | NULL    |       | select,insert,update,references |         |
| addr  | char(12) | utf8_general_ci | YES  |     | 未知    |       | select,insert,update,references |         |
| score | int(3)   | NULL            | YES  |     | NULL    |       | select,insert,update,references |         |
+-------+----------+-----------------+------+-----+---------+-------+---------------------------------+---------+
5 rows in set (0.00 sec)

4. 테이블의 문자 집합 보기

🎜 구문: 테이블 이름과 같은 라이브러리 이름에서 테이블 상태 표시;🎜rrreee🎜🎜5 테이블에 있는 모든 열의 문자 집합을 봅니다. 🎜🎜🎜구문: ​​ 테이블 이름의 전체 열 표시;🎜rrreee🎜[관련 권장 사항: 🎜mysql 비디오 튜토리얼🎜]🎜

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