1> show tables 或 show tables from database_name : 顯示當前資料庫中所有表的名稱mysql> show tables;+----------------+| Tables_in_test |+----------------+| article        || article2       || t_base         || t_hash         || t_list         || t_range        |+----------------+6 rows in set (0.00 sec)mysql> show tables from test;+----------------+| Tables_in_test |+----------------+

| article        || article2       || t_base         || t_hash         || t_list         || t_range        |+----------------+6 rows in set (0.00 sec)2> show databases : 顯示 MySQL 中所有資料庫的名稱mysql> show tables from test;+----------------+| Tables_in_test |+----------------+| article        || article2       |

| t_base         || t_hash         || t_list         || t_range        |+----------------+6 rows in set (0.00 sec)3> show columns from table_name from database_name; 或show columns from database_name.table_name : 顯示錶中列名稱4> show grants for user_name : 顯示一個使用者的許可權，顯示結果類似於grant 命令mysql> show grants for test;

+----------------------------------+| Grants for [email protected]%                |+----------------------------------+| GRANT USAGE ON *.* TO 'test'@'%' |+----------------------------------+1 row in set (0.00 sec)5> show index from table_name : 顯示錶的索引mysql> show index from test_indx;+-----------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+| Table     | Non_unique | Key_name | Seq_in_index | Column_name | Collation | Cardinality | Sub_part | Packed | Null | Index_type | Comment | Index_comment |+-----------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+| test_indx |          0 | PRIMARY  |            1 | id          | A         |           0 |     NULL | NULL   |      | BTREE      |         |               || test_indx |          0 | name     |            1 | name        | A         |           0 |     NULL | NULL   |      | BTREE      |         |               |+-----------+------------+----------+--------------+-------------+-----------+-------------+----------+--------+------+------------+---------+---------------+2 rows in set (0.00 sec)6> show status : 顯示一些系統特定資源的資訊，例如，正在執行的執行緒數量mysql> show status;+-----------------------------------------------+--------------------------------------------------+| Variable_name                                 | Value                                            |+-----------------------------------------------+--------------------------------------------------+| Aborted_clients                               | 0                                                || Aborted_connects                              | 10326                                            || Binlog_cache_disk_use                         | 28                                               || Binlog_cache_use                              | 76                                               || Binlog_stmt_cache_disk_use                    | 0                                                || Binlog_stmt_cache_use                         | 13                                               || Bytes_received                                | 1206                                             || Bytes_sent                                    | 34992                                            || Com_admin_commands                            | 0                                                || Com_assign_to_keycache                        | 0                                                || Com_alter_db                                  | 0                                                || Com_alter_db_upgrade                          | 0                                                || Com_alter_event                               | 0                                                || Com_alter_function                            | 0                                                || Com_alter_instance                            | 0                                                || Com_alter_procedure                           | 0                                                || Com_alter_server                              | 0                                                || Com_alter_table                               | 0                                                || Com_alter_tablespace                          | 0                                                || Com_alter_user                                | 0                                                || Com_analyze                                   | 0                                                || Com_begin                                     | 0                                                || Com_binlog                                    | 0                                                || Com_call_procedure                            | 0                                                || Com_change_db                                 | 1                                                || Com_change_master                             | 0                                                || Com_change_repl_filter                        | 0                                                || Com_check                                     | 0                                                || Com_checksum                                  | 0                                                || Com_commit                                    | 0                                                || Com_create_db                                 | 0                                                || Com_create_event                              | 0                                                || Com_create_function                           | 0                                                || Com_create_index                              | 0                                                || Com_create_procedure                          | 0                                                || Com_create_server                             | 0                                                || Com_create_table                              | 1                                                || Com_create_trigger                            | 0                                                || Com_create_udf                                | 0                                                || Com_create_user                               | 0                                                || Com_create_view                               | 0                                                || Com_dealloc_sql                               | 0                                                || Com_delete                                    | 0                                                || Com_delete_multi                              | 0                                                || Com_do                                        | 0                                                || Com_drop_db                                   | 0                                                || Com_drop_event                                | 0                                                || Com_drop_function                             | 0                                                || Com_drop_index                                | 0                                                || Com_drop_procedure                            | 0                                                || Com_drop_server                               | 0                                                || Com_drop_table                                | 0                                                || Com_drop_trigger                              | 0                                                || Com_drop_user                                 | 0                                                || Com_drop_view                                 | 0                                                || Com_empty_query                               | 0                                                || Com_execute_sql                               | 0                                                || Com_explain_other                             | 0                                                || Com_flush                                     | 0                                                || Com_get_diagnostics                           | 0                                                || Com_grant                                     | 0                                                || Com_ha_close                                  | 0                                                || Com_ha_open                                   | 0                                                || Com_ha_read                                   | 0                                                || Com_help                                      | 0                                                || Com_insert                                    | 0                                                || Com_insert_select                             | 0                                                || Com_install_plugin                            | 0                                                || Com_kill                                      | 0                                                || Com_load                                      | 0                                                || Com_lock_tables                               | 0                                                || Com_optimize                                  | 0                                                || Com_preload_keys                              | 0                                                || Com_prepare_sql                               | 0                                                || Com_purge                                     | 0                                                || Com_purge_before_date                         | 0                                                || Com_release_savepoint                         | 0                                                || Com_rename_table                              | 0                                                || Com_rename_user                               | 0                                                || Com_repair                                    | 0                                                || Com_replace                                   | 0                                                || Com_replace_select                            | 0                                                || Com_reset                                     | 0                                                || Com_resignal                                  | 0                                                || Com_revoke                                    | 0                                                || Com_revoke_all                                | 0                                                || Com_rollback                                  | 0                                                || Com_rollback_to_savepoint                     | 0                                                || Com_savepoint                                 | 0                                                || Com_select                                    | 3                                                || Com_set_option                                | 0                                                || Com_signal                                    | 0                                                || Com_show_binlog_events                        | 0                                                || Com_show_binlogs                              | 0                                                || Com_show_charsets                             | 0                                                || Com_show_collations                           | 0                                                || Com_show_create_db                            | 0                                                || Com_show_create_event                         | 0                                                || Com_show_create_func                          | 0                                                || Com_show_create_proc                          | 0                                                || Com_show_create_table                         | 2                                                || Com_show_create_trigger                       | 0                                                || Com_show_databases                            | 1                                                || Com_show_engine_logs                          | 0                                                || Com_show_engine_mutex                         | 0                                                || Com_show_engine_status                        | 0                                                || Com_show_events                               | 0                                                || Com_show_errors                               | 1                                                || Com_show_fields                               | 11                                               || Com_show_function_code                        | 0                                                || Com_show_function_status                      | 0                                                || Com_show_grants                               | 1                                                || Com_show_keys                                 | 2                                                || Com_show_master_status                        | 0                                                || Com_show_open_tables                          | 0                                                || Com_show_plugins                              | 0                                                || Com_show_privileges                           | 2                                                || Com_show_procedure_code                       | 0                                                || Com_show_procedure_status                     | 0                                                || Com_show_processlist                          | 0                                                || Com_show_profile                              | 0                                                || Com_show_profiles                             | 0                                                || Com_show_relaylog_events                      | 0                                                || Com_show_slave_hosts                          | 0                                                || Com_show_slave_status                         | 0                                                || Com_show_status                               | 1                                                || Com_show_storage_engines                      | 1                                                || Com_show_table_status                         | 1                                                || Com_show_tables                               | 5                                                || Com_show_triggers                             | 1                                                || Com_show_variables                            | 1                                                || Com_show_warnings                             | 0                                                || Com_show_create_user                          | 0                                                || Com_shutdown                                  | 0                                                || Com_slave_start                               | 0                                                || Com_slave_stop                                | 0                                                || Com_group_replication_start                   | 0                                                || Com_group_replication_stop                    | 0                                                || Com_stmt_execute                              | 0                                                || Com_stmt_close                                | 0                                                || Com_stmt_fetch                                | 0                                                || Com_stmt_prepare                              | 0                                                || Com_stmt_reset                                | 0                                                || Com_stmt_send_long_data                       | 0                                                || Com_truncate                                  | 0                                                || Com_uninstall_plugin                          | 0                                                || Com_unlock_tables                             | 0                                                || Com_update                                    | 0                                                || Com_update_multi                              | 0                                                || Com_xa_commit                                 | 0                                                || Com_xa_end                                    | 0                                                || Com_xa_prepare                                | 0                                                || Com_xa_recover                                | 0                                                || Com_xa_rollback                               | 0                                                || Com_xa_start                                  | 0                                                || Com_stmt_reprepare                            | 0                                                || Compression                                   | OFF                                              || Connection_errors_accept                      | 0                                                || Connection_errors_internal                    | 0                                                || Connection_errors_max_connections             | 0                                                || Connection_errors_peer_address                | 0                                                || Connection_errors_select                      | 0                                                || Connection_errors_tcpwrap                     | 0                                                || Connections                                   | 10335                                            || Created_tmp_disk_tables                       | 6                                                || Created_tmp_files                             | 18                                               || Created_tmp_tables                            | 17                                               || Delayed_errors                                | 0                                                || Delayed_insert_threads                        | 0                                                || Delayed_writes                                | 0                                                || Flush_commands                                | 1                                                || Handler_commit                                | 0                                                || Handler_delete                                | 0                                                || Handler_discover                              | 0                                                || Handler_external_lock                         | 76                                               || Handler_mrr_init                              | 0                                                || Handler_prepare                               | 0                                                || Handler_read_first                            | 6                                                || Handler_read_key                              | 5                                                || Handler_read_last                             | 0                                                || Handler_read_next                             | 8                                                || Handler_read_prev                             | 0                                                || Handler_read_rnd                              | 0                                                || Handler_read_rnd_next                         | 1122                                             || Handler_rollback                              | 0                                                || Handler_savepoint                             | 0                                                || Handler_savepoint_rollback                    | 0                                                || Handler_update                                | 0                                                || Handler_write                                 | 603                                              || Innodb_buffer_pool_dump_status                | Dumping of buffer pool not started               || Innodb_buffer_pool_load_status                | Buffer pool(s) load completed at 180318  4:23:48 || Innodb_buffer_pool_resize_status              |                                                  || Innodb_buffer_pool_pages_data                 | 7165                                             || Innodb_buffer_pool_bytes_data                 | 117391360                                        || Innodb_buffer_pool_pages_dirty                | 0                                                || Innodb_buffer_pool_bytes_dirty                | 0                                                || Innodb_buffer_pool_pages_flushed              | 72097                                            || Innodb_buffer_pool_pages_free                 | 1024                                             || Innodb_buffer_pool_pages_misc                 | 2                                                || Innodb_buffer_pool_pages_total                | 8191                                             || Innodb_buffer_pool_read_ahead_rnd             | 0                                                || Innodb_buffer_pool_read_ahead                 | 35371                                            || Innodb_buffer_pool_read_ahead_evicted         | 31                                               || Innodb_buffer_pool_read_requests              | 77487902                                         || Innodb_buffer_pool_reads                      | 1564                                             || Innodb_buffer_pool_wait_free                  | 872                                              || Innodb_buffer_pool_write_requests             | 38394848                                         || Innodb_data_fsyncs                            | 3254                                             || Innodb_data_pending_fsyncs                    | 0                                                || Innodb_data_pending_reads                     | 0                                                || Innodb_data_pending_writes                    | 0                                                || Innodb_data_read                              | 605213184                                        || Innodb_dat