| 知乎专栏 ｜ 多维度架构 |
Server
mysql> select version(); +-----------+ | version() | +-----------+ | 5.0.77 | +-----------+ 1 row in set (0.00 sec)
mysql> status; -------------- mysql Ver 14.12 Distrib 5.0.77, for redhat-linux-gnu (x86_64) using readline 5.1 Connection id: 1533 Current database: Current user: root@localhost SSL: Not in use Current pager: stdout Using outfile: '' Using delimiter: ; Server version: 5.0.77 Source distribution Protocol version: 10 Connection: Localhost via UNIX socket Server characterset: latin1 Db characterset: latin1 Client characterset: latin1 Conn. characterset: latin1 UNIX socket: /var/lib/mysql/mysql.sock Uptime: 1 day 21 hours 40 min 52 sec Threads: 1 Questions: 22172 Slow queries: 0 Opens: 3130 Flush tables: 1 Open tables: 64 Queries per second avg: 0.135 --------------
Client
[root@development ~]# mysql -V mysql Ver 14.12 Distrib 5.0.77, for redhat-linux-gnu (x86_64) using readline 5.1
mysql> show status; mysql> show global status;
数据库性能状态 (1)QPS(每秒Query量) QPS = Questions(or Queries) / seconds mysql > show /*50000 global */ status like 'Question'; (2)TPS(每秒事务量) TPS = (Com_commit + Com_rollback) / seconds mysql > show status like 'Com_commit'; mysql > show status like 'Com_rollback'; (3)key Buffer 命中率 key_buffer_read_hits = (1-key_reads / key_read_requests) * 100% key_buffer_write_hits = (1-key_writes / key_write_requests) * 100% mysql> show status like 'Key%'; (4)InnoDB Buffer命中率 innodb_buffer_read_hits = (1 - innodb_buffer_pool_reads / innodb_buffer_pool_read_requests) * 100% mysql> show status like 'innodb_buffer_pool_read%'; (5)Query Cache命中率 Query_cache_hits = (Qcahce_hits / (Qcache_hits + Qcache_inserts )) * 100%; mysql> show status like 'Qcache%'; (6)Table Cache状态量 mysql> show status like 'open%'; (7)Thread Cache 命中率 Thread_cache_hits = (1 - Threads_created / connections ) * 100% mysql> show status like 'Thread%'; mysql> show status like 'Connections'; (8)锁定状态 mysql> show status like '%lock%'; (9)复制延时量 mysql > show slave status (10) Tmp Table 状况(临时表状况) mysql > show status like 'Create_tmp%'; (11) Binlog Cache 使用状况 mysql > show status like 'Binlog_cache%'; (12) Innodb_log_waits 量 mysql > show status like 'innodb_log_waits';
mysql> show master status; +---------------------+-----------+--------------+------------------+ | File | Position | Binlog_Do_DB | Binlog_Ignore_DB | +---------------------+-----------+--------------+------------------+ | DBMaster-bin.000018 | 409468882 | example | | +---------------------+-----------+--------------+------------------+ 1 row in set (0.00 sec) mysql>
mysql> show slave status/G 得到的列表会有类似下面的数据： File: mysql-bin.000001 Position: 1374 Binlog_Do_DB: test Binlog_Ignore_DB: mysql Slave_IO_State: Waiting for master to send event Slave_IO_Running: Yes Slave_SQL_Running: Yes
mysql> SHOW PLUGINS; +------------+----------+----------------+---------+---------+ | Name | Status | Type | Library | License | +------------+----------+----------------+---------+---------+ | binlog | ACTIVE | STORAGE ENGINE | NULL | GPL | | partition | ACTIVE | STORAGE ENGINE | NULL | GPL | | ARCHIVE | ACTIVE | STORAGE ENGINE | NULL | GPL | | BLACKHOLE | ACTIVE | STORAGE ENGINE | NULL | GPL | | CSV | ACTIVE | STORAGE ENGINE | NULL | GPL | | FEDERATED | DISABLED | STORAGE ENGINE | NULL | GPL | | MEMORY | ACTIVE | STORAGE ENGINE | NULL | GPL | | InnoDB | ACTIVE | STORAGE ENGINE | NULL | GPL | | MyISAM | ACTIVE | STORAGE ENGINE | NULL | GPL | | MRG_MYISAM | ACTIVE | STORAGE ENGINE | NULL | GPL | +------------+----------+----------------+---------+---------+ 10 rows in set (0.00 sec)
show full processlist; </screen> <screen><![CDATA[ 命令： show processlist; 如果是root帐号，你能看到所有用户的当前连接。如果是其它普通帐号，只能看到自己占用的连接。 show processlist;只列出前100条，如果想全列出请使用show full processlist; mysql> show processlist; 命令： show status; Aborted_clients 由于客户没有正确关闭连接已经死掉，已经放弃的连接数量。 Aborted_connects 尝试已经失败的MySQL服务器的连接的次数。 Connections 试图连接MySQL服务器的次数。 Created_tmp_tables 当执行语句时，已经被创造了的隐含临时表的数量。 Delayed_insert_threads 正在使用的延迟插入处理器线程的数量。 Delayed_writes 用INSERT DELAYED写入的行数。 Delayed_errors 用INSERT DELAYED写入的发生某些错误(可能重复键值)的行数。 Flush_commands 执行FLUSH命令的次数。 Handler_delete 请求从一张表中删除行的次数。 Handler_read_first 请求读入表中第一行的次数。 Handler_read_key 请求数字基于键读行。 Handler_read_next 请求读入基于一个键的一行的次数。 Handler_read_rnd 请求读入基于一个固定位置的一行的次数。 Handler_update 请求更新表中一行的次数。 Handler_write 请求向表中插入一行的次数。 Key_blocks_used 用于关键字缓存的块的数量。 Key_read_requests 请求从缓存读入一个键值的次数。 Key_reads 从磁盘物理读入一个键值的次数。 Key_write_requests 请求将一个关键字块写入缓存次数。 Key_writes 将一个键值块物理写入磁盘的次数。 Max_used_connections 同时使用的连接的最大数目。 Not_flushed_key_blocks 在键缓存中已经改变但是还没被清空到磁盘上的键块。 Not_flushed_delayed_rows 在INSERT DELAY队列中等待写入的行的数量。 Open_tables 打开表的数量。 Open_files 打开文件的数量。 Open_streams 打开流的数量(主要用于日志记载） Opened_tables 已经打开的表的数量。 Questions 发往服务器的查询的数量。 Slow_queries 要花超过long_query_time时间的查询数量。 Threads_connected 当前打开的连接的数量。 Threads_running 不在睡眠的线程数量。 Uptime 服务器工作了多少秒。 </screen> </section> <section id="binary"> <title>binary 日志</title> <screen> <![CDATA[ mysql> show binary logs; +------------------+-----------+ | Log_name | File_size | +------------------+-----------+ | mysql-bin.000001 | 19544 | | mysql-bin.000002 | 974751 | | mysql-bin.000003 | 107 | | mysql-bin.000004 | 3976040 | | mysql-bin.000005 | 126 | | mysql-bin.000006 | 350063 | | mysql-bin.000007 | 6826 | | mysql-bin.000008 | 3879494 | | mysql-bin.000009 | 126 | | mysql-bin.000010 | 494 | | mysql-bin.000011 | 17286686 | | mysql-bin.000012 | 15003942 | | mysql-bin.000013 | 1709321 | +------------------+-----------+ 13 rows in set (0.00 sec)
mysql> SHOW STATUS LIKE 'threads%'; +-------------------+-------+ | Variable_name | Value | +-------------------+-------+ | Threads_cached | 0 | | Threads_connected | 1 | | Threads_created | 1 | | Threads_running | 1 | +-------------------+-------+ 4 rows in set (0.01 sec)
SHOW DATABASES; </screen> </section> <section id="table"> <title>TABLE</title> <screen><![CDATA[ SHOW TABLE STATUS FROM `dbname`; </screen> </section> <section id="created_tmp"> <title>临时表</title> <screen> <![CDATA[ mysql> SHOW STATUS LIKE 'created_tmp%'; +-------------------------+-------+ | Variable_name | Value | +-------------------------+-------+ | Created_tmp_disk_tables | 0 | | Created_tmp_files | 5 | | Created_tmp_tables | 0 | +-------------------------+-------+ 3 rows in set (0.00 sec)
mysql> SHOW STATUS LIKE "sort%"; +-------------------+-------+ | Variable_name | Value | +-------------------+-------+ | Sort_merge_passes | 0 | | Sort_range | 0 | | Sort_rows | 0 | | Sort_scan | 0 | +-------------------+-------+ 4 rows in set (0.00 sec)
mysql> show status like '%key_read%'; +-------------------+-------+ | Variable_name | Value | +-------------------+-------+ | Key_read_requests | 6 | | Key_reads | 3 | +-------------------+-------+ 2 rows in set (0.00 sec)
SHOW TRIGGERS FROM `dbname`;
mysql> SHOW TRIGGERS LIKE '%trigger_name%'\G
Empty set (0.00 sec)
mysql> SHOW TRIGGERS LIKE '%demo%'\G
*************************** 1. row ***************************
Trigger: demo_AFTER_INSERT
Event: INSERT
Table: demo
Statement: BEGIN
set @rev = "";
SELECT
OUT2FILE('/tmp/demo.log',
CONCAT_WS(',',
NEW.id,
NEW.name,
NEW.sex,
NEW.address))
INTO @rev;
END
Timing: AFTER
Created: 2017-11-23 11:47:58.10
sql_mode: ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
Definer: root@%
character_set_client: utf8
collation_connection: utf8_general_ci
Database Collation: utf8_general_ci
1 row in set (0.00 sec)
mysql> SHOW ENGINES; +--------------------+---------+----------------------------------------------------------------+--------------+------+------------+ | Engine | Support | Comment | Transactions | XA | Savepoints | +--------------------+---------+----------------------------------------------------------------+--------------+------+------------+ | CSV | YES | CSV storage engine | NO | NO | NO | | MRG_MYISAM | YES | Collection of identical MyISAM tables | NO | NO | NO | | PERFORMANCE_SCHEMA | YES | Performance Schema | NO | NO | NO | | BLACKHOLE | YES | /dev/null storage engine (anything you write to it disappears) | NO | NO | NO | | MEMORY | YES | Hash based, stored in memory, useful for temporary tables | NO | NO | NO | | FEDERATED | NO | Federated MySQL storage engine | NULL | NULL | NULL | | ARCHIVE | YES | Archive storage engine | NO | NO | NO | | MyISAM | YES | MyISAM storage engine | NO | NO | NO | | InnoDB | DEFAULT | Supports transactions, row-level locking, and foreign keys | YES | YES | YES | +--------------------+---------+----------------------------------------------------------------+--------------+------+------------+ 9 rows in set (0.00 sec)
mysql> SHOW COLLATION; +--------------------------+----------+-----+---------+----------+---------+ | Collation | Charset | Id | Default | Compiled | Sortlen | +--------------------------+----------+-----+---------+----------+---------+ | big5_chinese_ci | big5 | 1 | Yes | Yes | 1 | | big5_bin | big5 | 84 | | Yes | 1 | | dec8_swedish_ci | dec8 | 3 | Yes | Yes | 1 | | dec8_bin | dec8 | 69 | | Yes | 1 | | cp850_general_ci | cp850 | 4 | Yes | Yes | 1 | | cp850_bin | cp850 | 80 | | Yes | 1 | | hp8_english_ci | hp8 | 6 | Yes | Yes | 1 | | hp8_bin | hp8 | 72 | | Yes | 1 | | koi8r_general_ci | koi8r | 7 | Yes | Yes | 1 | | koi8r_bin | koi8r | 74 | | Yes | 1 | | latin1_german1_ci | latin1 | 5 | | Yes | 1 | | latin1_swedish_ci | latin1 | 8 | Yes | Yes | 1 | | latin1_danish_ci | latin1 | 15 | | Yes | 1 | | latin1_german2_ci | latin1 | 31 | | Yes | 2 | | latin1_bin | latin1 | 47 | | Yes | 1 | | latin1_general_ci | latin1 | 48 | | Yes | 1 | | latin1_general_cs | latin1 | 49 | | Yes | 1 | | latin1_spanish_ci | latin1 | 94 | | Yes | 1 | | latin2_czech_cs | latin2 | 2 | | Yes | 4 | | latin2_general_ci | latin2 | 9 | Yes | Yes | 1 | | latin2_hungarian_ci | latin2 | 21 | | Yes | 1 | | latin2_croatian_ci | latin2 | 27 | | Yes | 1 | | latin2_bin | latin2 | 77 | | Yes | 1 | | swe7_swedish_ci | swe7 | 10 | Yes | Yes | 1 | | swe7_bin | swe7 | 82 | | Yes | 1 | | ascii_general_ci | ascii | 11 | Yes | Yes | 1 | | ascii_bin | ascii | 65 | | Yes | 1 | | ujis_japanese_ci | ujis | 12 | Yes | Yes | 1 | | ujis_bin | ujis | 91 | | Yes | 1 | | sjis_japanese_ci | sjis | 13 | Yes | Yes | 1 | | sjis_bin | sjis | 88 | | Yes | 1 | | hebrew_general_ci | hebrew | 16 | Yes | Yes | 1 | | hebrew_bin | hebrew | 71 | | Yes | 1 | | tis620_thai_ci | tis620 | 18 | Yes | Yes | 4 | | tis620_bin | tis620 | 89 | | Yes | 1 | | euckr_korean_ci | euckr | 19 | Yes | Yes | 1 | | euckr_bin | euckr | 85 | | Yes | 1 | | koi8u_general_ci | koi8u | 22 | Yes | Yes | 1 | | koi8u_bin | koi8u | 75 | | Yes | 1 | | gb2312_chinese_ci | gb2312 | 24 | Yes | Yes | 1 | | gb2312_bin | gb2312 | 86 | | Yes | 1 | | greek_general_ci | greek | 25 | Yes | Yes | 1 | | greek_bin | greek | 70 | | Yes | 1 | | cp1250_general_ci | cp1250 | 26 | Yes | Yes | 1 | | cp1250_czech_cs | cp1250 | 34 | | Yes | 2 | | cp1250_croatian_ci | cp1250 | 44 | | Yes | 1 | | cp1250_bin | cp1250 | 66 | | Yes | 1 | | cp1250_polish_ci | cp1250 | 99 | | Yes | 1 | | gbk_chinese_ci | gbk | 28 | Yes | Yes | 1 | | gbk_bin | gbk | 87 | | Yes | 1 | | latin5_turkish_ci | latin5 | 30 | Yes | Yes | 1 | | latin5_bin | latin5 | 78 | | Yes | 1 | | armscii8_general_ci | armscii8 | 32 | Yes | Yes | 1 | | armscii8_bin | armscii8 | 64 | | Yes | 1 | | utf8_general_ci | utf8 | 33 | Yes | Yes | 1 | | utf8_bin | utf8 | 83 | | Yes | 1 | | utf8_unicode_ci | utf8 | 192 | | Yes | 8 | | utf8_icelandic_ci | utf8 | 193 | | Yes | 8 | | utf8_latvian_ci | utf8 | 194 | | Yes | 8 | | utf8_romanian_ci | utf8 | 195 | | Yes | 8 | | utf8_slovenian_ci | utf8 | 196 | | Yes | 8 | | utf8_polish_ci | utf8 | 197 | | Yes | 8 | | utf8_estonian_ci | utf8 | 198 | | Yes | 8 | | utf8_spanish_ci | utf8 | 199 | | Yes | 8 | | utf8_swedish_ci | utf8 | 200 | | Yes | 8 | | utf8_turkish_ci | utf8 | 201 | | Yes | 8 | | utf8_czech_ci | utf8 | 202 | | Yes | 8 | | utf8_danish_ci | utf8 | 203 | | Yes | 8 | | utf8_lithuanian_ci | utf8 | 204 | | Yes | 8 | | utf8_slovak_ci | utf8 | 205 | | Yes | 8 | | utf8_spanish2_ci | utf8 | 206 | | Yes | 8 | | utf8_roman_ci | utf8 | 207 | | Yes | 8 | | utf8_persian_ci | utf8 | 208 | | Yes | 8 | | utf8_esperanto_ci | utf8 | 209 | | Yes | 8 | | utf8_hungarian_ci | utf8 | 210 | | Yes | 8 | | utf8_sinhala_ci | utf8 | 211 | | Yes | 8 | | utf8_general_mysql500_ci | utf8 | 223 | | Yes | 1 | | ucs2_general_ci | ucs2 | 35 | Yes | Yes | 1 | | ucs2_bin | ucs2 | 90 | | Yes | 1 | | ucs2_unicode_ci | ucs2 | 128 | | Yes | 8 | | ucs2_icelandic_ci | ucs2 | 129 | | Yes | 8 | | ucs2_latvian_ci | ucs2 | 130 | | Yes | 8 | | ucs2_romanian_ci | ucs2 | 131 | | Yes | 8 | | ucs2_slovenian_ci | ucs2 | 132 | | Yes | 8 | | ucs2_polish_ci | ucs2 | 133 | | Yes | 8 | | ucs2_estonian_ci | ucs2 | 134 | | Yes | 8 | | ucs2_spanish_ci | ucs2 | 135 | | Yes | 8 | | ucs2_swedish_ci | ucs2 | 136 | | Yes | 8 | | ucs2_turkish_ci | ucs2 | 137 | | Yes | 8 | | ucs2_czech_ci | ucs2 | 138 | | Yes | 8 | | ucs2_danish_ci | ucs2 | 139 | | Yes | 8 | | ucs2_lithuanian_ci | ucs2 | 140 | | Yes | 8 | | ucs2_slovak_ci | ucs2 | 141 | | Yes | 8 | | ucs2_spanish2_ci | ucs2 | 142 | | Yes | 8 | | ucs2_roman_ci | ucs2 | 143 | | Yes | 8 | | ucs2_persian_ci | ucs2 | 144 | | Yes | 8 | | ucs2_esperanto_ci | ucs2 | 145 | | Yes | 8 | | ucs2_hungarian_ci | ucs2 | 146 | | Yes | 8 | | ucs2_sinhala_ci | ucs2 | 147 | | Yes | 8 | | ucs2_general_mysql500_ci | ucs2 | 159 | | Yes | 1 | | cp866_general_ci | cp866 | 36 | Yes | Yes | 1 | | cp866_bin | cp866 | 68 | | Yes | 1 | | keybcs2_general_ci | keybcs2 | 37 | Yes | Yes | 1 | | keybcs2_bin | keybcs2 | 73 | | Yes | 1 | | macce_general_ci | macce | 38 | Yes | Yes | 1 | | macce_bin | macce | 43 | | Yes | 1 | | macroman_general_ci | macroman | 39 | Yes | Yes | 1 | | macroman_bin | macroman | 53 | | Yes | 1 | | cp852_general_ci | cp852 | 40 | Yes | Yes | 1 | | cp852_bin | cp852 | 81 | | Yes | 1 | | latin7_estonian_cs | latin7 | 20 | | Yes | 1 | | latin7_general_ci | latin7 | 41 | Yes | Yes | 1 | | latin7_general_cs | latin7 | 42 | | Yes | 1 | | latin7_bin | latin7 | 79 | | Yes | 1 | | utf8mb4_general_ci | utf8mb4 | 45 | Yes | Yes | 1 | | utf8mb4_bin | utf8mb4 | 46 | | Yes | 1 | | utf8mb4_unicode_ci | utf8mb4 | 224 | | Yes | 8 | | utf8mb4_icelandic_ci | utf8mb4 | 225 | | Yes | 8 | | utf8mb4_latvian_ci | utf8mb4 | 226 | | Yes | 8 | | utf8mb4_romanian_ci | utf8mb4 | 227 | | Yes | 8 | | utf8mb4_slovenian_ci | utf8mb4 | 228 | | Yes | 8 | | utf8mb4_polish_ci | utf8mb4 | 229 | | Yes | 8 | | utf8mb4_estonian_ci | utf8mb4 | 230 | | Yes | 8 | | utf8mb4_spanish_ci | utf8mb4 | 231 | | Yes | 8 | | utf8mb4_swedish_ci | utf8mb4 | 232 | | Yes | 8 | | utf8mb4_turkish_ci | utf8mb4 | 233 | | Yes | 8 | | utf8mb4_czech_ci | utf8mb4 | 234 | | Yes | 8 | | utf8mb4_danish_ci | utf8mb4 | 235 | | Yes | 8 | | utf8mb4_lithuanian_ci | utf8mb4 | 236 | | Yes | 8 | | utf8mb4_slovak_ci | utf8mb4 | 237 | | Yes | 8 | | utf8mb4_spanish2_ci | utf8mb4 | 238 | | Yes | 8 | | utf8mb4_roman_ci | utf8mb4 | 239 | | Yes | 8 | | utf8mb4_persian_ci | utf8mb4 | 240 | | Yes | 8 | | utf8mb4_esperanto_ci | utf8mb4 | 241 | | Yes | 8 | | utf8mb4_hungarian_ci | utf8mb4 | 242 | | Yes | 8 | | utf8mb4_sinhala_ci | utf8mb4 | 243 | | Yes | 8 | | cp1251_bulgarian_ci | cp1251 | 14 | | Yes | 1 | | cp1251_ukrainian_ci | cp1251 | 23 | | Yes | 1 | | cp1251_bin | cp1251 | 50 | | Yes | 1 | | cp1251_general_ci | cp1251 | 51 | Yes | Yes | 1 | | cp1251_general_cs | cp1251 | 52 | | Yes | 1 | | utf16_general_ci | utf16 | 54 | Yes | Yes | 1 | | utf16_bin | utf16 | 55 | | Yes | 1 | | utf16_unicode_ci | utf16 | 101 | | Yes | 8 | | utf16_icelandic_ci | utf16 | 102 | | Yes | 8 | | utf16_latvian_ci | utf16 | 103 | | Yes | 8 | | utf16_romanian_ci | utf16 | 104 | | Yes | 8 | | utf16_slovenian_ci | utf16 | 105 | | Yes | 8 | | utf16_polish_ci | utf16 | 106 | | Yes | 8 | | utf16_estonian_ci | utf16 | 107 | | Yes | 8 | | utf16_spanish_ci | utf16 | 108 | | Yes | 8 | | utf16_swedish_ci | utf16 | 109 | | Yes | 8 | | utf16_turkish_ci | utf16 | 110 | | Yes | 8 | | utf16_czech_ci | utf16 | 111 | | Yes | 8 | | utf16_danish_ci | utf16 | 112 | | Yes | 8 | | utf16_lithuanian_ci | utf16 | 113 | | Yes | 8 | | utf16_slovak_ci | utf16 | 114 | | Yes | 8 | | utf16_spanish2_ci | utf16 | 115 | | Yes | 8 | | utf16_roman_ci | utf16 | 116 | | Yes | 8 | | utf16_persian_ci | utf16 | 117 | | Yes | 8 | | utf16_esperanto_ci | utf16 | 118 | | Yes | 8 | | utf16_hungarian_ci | utf16 | 119 | | Yes | 8 | | utf16_sinhala_ci | utf16 | 120 | | Yes | 8 | | cp1256_general_ci | cp1256 | 57 | Yes | Yes | 1 | | cp1256_bin | cp1256 | 67 | | Yes | 1 | | cp1257_lithuanian_ci | cp1257 | 29 | | Yes | 1 | | cp1257_bin | cp1257 | 58 | | Yes | 1 | | cp1257_general_ci | cp1257 | 59 | Yes | Yes | 1 | | utf32_general_ci | utf32 | 60 | Yes | Yes | 1 | | utf32_bin | utf32 | 61 | | Yes | 1 | | utf32_unicode_ci | utf32 | 160 | | Yes | 8 | | utf32_icelandic_ci | utf32 | 161 | | Yes | 8 | | utf32_latvian_ci | utf32 | 162 | | Yes | 8 | | utf32_romanian_ci | utf32 | 163 | | Yes | 8 | | utf32_slovenian_ci | utf32 | 164 | | Yes | 8 | | utf32_polish_ci | utf32 | 165 | | Yes | 8 | | utf32_estonian_ci | utf32 | 166 | | Yes | 8 | | utf32_spanish_ci | utf32 | 167 | | Yes | 8 | | utf32_swedish_ci | utf32 | 168 | | Yes | 8 | | utf32_turkish_ci | utf32 | 169 | | Yes | 8 | | utf32_czech_ci | utf32 | 170 | | Yes | 8 | | utf32_danish_ci | utf32 | 171 | | Yes | 8 | | utf32_lithuanian_ci | utf32 | 172 | | Yes | 8 | | utf32_slovak_ci | utf32 | 173 | | Yes | 8 | | utf32_spanish2_ci | utf32 | 174 | | Yes | 8 | | utf32_roman_ci | utf32 | 175 | | Yes | 8 | | utf32_persian_ci | utf32 | 176 | | Yes | 8 | | utf32_esperanto_ci | utf32 | 177 | | Yes | 8 | | utf32_hungarian_ci | utf32 | 178 | | Yes | 8 | | utf32_sinhala_ci | utf32 | 179 | | Yes | 8 | | binary | binary | 63 | Yes | Yes | 1 | | geostd8_general_ci | geostd8 | 92 | Yes | Yes | 1 | | geostd8_bin | geostd8 | 93 | | Yes | 1 | | cp932_japanese_ci | cp932 | 95 | Yes | Yes | 1 | | cp932_bin | cp932 | 96 | | Yes | 1 | | eucjpms_japanese_ci | eucjpms | 97 | Yes | Yes | 1 | | eucjpms_bin | eucjpms | 98 | | Yes | 1 | +--------------------------+----------+-----+---------+----------+---------+
MariaDB [test]> SHOW GRANTS; +----------------------------------------------------------------------------------------------------------------------------------------+ | Grants for root@localhost | +----------------------------------------------------------------------------------------------------------------------------------------+ | GRANT ALL PRIVILEGES ON *.* TO 'root'@'localhost' IDENTIFIED BY PASSWORD '*C6325DAF39AE6CC34E960D3C65F1398FE467E1D0' WITH GRANT OPTION | | GRANT PROXY ON ''@'' TO 'root'@'localhost' WITH GRANT OPTION | +----------------------------------------------------------------------------------------------------------------------------------------+ 2 rows in set (0.00 sec)
SHOW VARIABLES LIKE 'validate_password.%'; mysql> SHOW VARIABLES LIKE 'validate_password.%'; +--------------------------------------+--------+ | Variable_name | Value | +--------------------------------------+--------+ | validate_password.check_user_name | ON | | validate_password.dictionary_file | | | validate_password.length | 8 | | validate_password.mixed_case_count | 1 | | validate_password.number_count | 1 | | validate_password.policy | MEDIUM | | validate_password.special_char_count | 1 | +--------------------------------------+--------+ 7 rows in set (0.00 sec)