It has the following columns: Database name containing the constraint. The LIKE clause, if present on its own, indicates which database names to match. The Information Schema ENGINES table displays status information about the server's storage engines. `KEY_COLUMN_USAGE 정보 스키마 TABLES 테이블. 5. Lists non-temporary tables currently open in the table cache with additional information, including the database and table names, number of table instances in use, and whether the table is name-locked. Sequence number showing the display order for rows with the same QUERY_ID. … Continue reading "MariaDB 10. WHERE name LIKE 'wait/lock/metadata%'; or in the configuration file: Oct 22, 2014 · One of the most popular plugin types both in MariaDB and MySQL is INFORMATION_SCHEMA plugin type. The Information Schema GLOBAL_STATUS and SESSION_STATUS tables store a record of all status variables and their global and session values respectively. I suggest it for tables with either a high percentage of "free space" (see SHOW TABLE STATUS) or where you know you do a lot of DELETEs and/or UPDATEs. The WSREP_INFO plugin adds two new tables to the Information Schema, WSREP_MEMBERSHIP and WSREP_STATUS. 4 CS, in 10. schema_name - database (schema) name; Rows. Each server thread is represented as a row in the threads table. user table contains information about users that have permission to access the MariaDB server, and their global privileges. As noted in the docs, GET_LOCK locks have an OBJECT_TYPE of 'USER LEVEL LOCK', so we can filter our query down to them with a WHERE clause: mysql> SELECT GET_LOCK('foobarbaz', -1); The Information Schema VIEWS table contains information about views. 0 までは、 TEMPORARY 以外のテーブルのみが表示されます)、 sequences および views をリストします。. Tables that are only read from the ‘def. 您还可以使用 SHOW DATABASES 、 SHOW TABLES The Information Schema PLUGINS table contains information about server plugins. The userstat system variable must be set to 1 to Oct 4, 2014 · The mariadb_schema prefix is displayed only when the data type name would be ambiguous otherwise. The SHOW PROCEDURE STATUS Command. The following fields are returned by SHOW INDEX. Present starting in MariaDB Enterprise Server 23. SHOW INDEX FROM mydb. Example Description. 0 and in 5. Here’s a query that returns the size of all databases on the server: Apr 19, 2021 · Note: I'm using Laravel's users table as an example in this article. mariabackup executes per each table information_schema query like below, depending on the server it takes 0. 5 ES , in 10. SHOW TABLES は、特定のデータベース内のテーブル ( MariaDB 11. The specific privilege, for example CREATE USER, RELOAD, SHUTDOWN, SELECT, INSERT, UPDATE or REFERENCES. The SQL defining the event. Whether the user has the GRANT OPTION for The Information Schema STATISTICS table provides information about table indexes. This table returns information about the tables and views in each database on the server. An upgradable shared metadata lock which allows other connections to access table metadata, but not data. Database name on which the trigger acts. 3 CS, and in 10. mysql -uroot -p mydb -e "show tables". yourTable; The output is a simple table with all the columns. Create and assign the list of tables to the array variable in this bash script (separated by a single space just like in the code below) array=( table1 table2 table3 ) for i in "${array[@]}" do. 4 ES, in 10. 07 Enterprise. Default character set for the database. 3 The Information Schema INNODB_LOCKS table stores information about locks that InnoDB transactions have requested but not yet acquired, or that are blocking another transaction. It contains the following columns: Column. MariaDBでデータベース、テーブル、カラムを確認した時の手順を残す。. GRANT INSERT ANY TABLE TO bob; GRANT INSERT ANY TABLE TO alice; Using MariaDB, create an external table based on a user-defined schema. Stored routine name. Overview. Oct 19, 2020 · The metadata_locks table was introduced in MariaDB 10. Constraint name. Profiling state. 10. It has the following columns: Database name containing the view. This feature helps to explain why some decisions were taken by the optimizer and why some were rejected. 3 See also: SQL Statements for MariaDB Xpand 6. 4 CS , in 10. See also: SQL Statements for MariaDB Xpand 6. They contain the following columns: Status variable name. It contains a single column: Column. Field. May 21, 2023 · SHOW STATUS will show status data for the whole server, not only for the active catalog. MariaDB starting with 11. It has the following columns: Database name in which the trigger occurs. ibd files. Always NULL. The WSREP_STATUS table makes Galera node cluster status information available through the Information Schema. Examples. Connection identifier. sys user is created as the definer of the view. SHOW CREATE TABLE european_names\G ***** 1. MariaDBのテーブル定義を確認する. 1 if the index can have duplicates, 0 if not. schemata table. 4, there are 52. Ordinal position of the parameter, starting at 1. The LIKE clause, if present on its own, indicates which table names to match. Keyword. I recommend using Table Inspector in MySQL Workbench, it gives you lot of useful information including most data related to table partitions. Sep 30, 2009 · Alternatively the SHOW COLUMNS FROM statement can be used to produce a list of all the columns in the given table. 2 ES, in 10. mytable; SHOW KEYS and SHOW INDEXES are synonyms for SHOW INDEX. The Information Schema ROUTINES table stores information about stored procedures and stored functions. You can get it using. The information_schema. Feb 1, 2022 · The SHOW TABLES Command. * The Information Schema INDEX_STATISTICS table shows statistics on index usage and makes it possible to do such things as locating unused indexes and generating the commands to remove them. TABLES 表以及 SHOW TABLE STATUS 语句提供有关表的扩展信息。 Examples Below are four ways to list out the tables in a MariaDB database using SQL or the command line. GRANTEE. Prior to MariaDB 10. View table name. Name of the character set. DB Name | DB Size in MB. 6 开始， mariadb-show 是到 mysqlshow 的符号链接，该脚本显示了 MariaDB 数据库的结构。. It has the following columns: Lock ID number - the format is not fixed, so do not rely upon the number for information. Name of the trigger. MariaDB User. Similar information can also be returned with the SHOW [FULL] PROCESSLIST statement, or the mariadb-admin processlist command. It contains the following columns: Database name containing the stored routine parameter. com 339. Information Schema SPATIAL_REF_SYS Table →. Table name on which the trigger acts. It has the following columns: In the format user_name@host_name. 6 user (not allowed to SHOW DATABASES): SHOW GRANTS FOR 'dev-all'@'localhost'; GRANT USAGE ON *. 09 , in 6. One of INSERT, UPDATE or 'DELETE. It can still be accessed under this name, via a symlink in Linux, or an alternate binary in Windows. SHOW CREATE SCHEMA is a synonym for SHOW CREATE DATABASE. The LIKE clause, if present on its own, indicates which character set names to match. Event name. The setup_instruments table contains a list of instrumented object classes for which it is possible to collect events. Database comment. It was removed as a separate statement in MariaDB 10. It contains the following columns: In the format user_name@host_name. The Information Schema PROCESSLIST table contains information about running threads. Global or session value. The SHOW TABLES Command. Shows the CREATE DATABASE statement that creates the given database. The session_connect_attrs and session_account_connect_attrs tables provide Nov 18, 2020 · The Information Schema table shows information about the various tables (until MariaDB 11. Nov 13, 2008 · It's a two step process at. The database comment is also added to the db. 1. Dec 24, 2014 · MariaDB 10. Shows the structure of a MariaDB database (databases, tables, columns and indexes). Release Series. 1 as an alternative for retrieving the data. Creating a role and granting a privilege: CREATE ROLE journalist; GRANT SHOW The SHOW CREATE TABLE statement or INFORMATION SCHEMA database can be used to determine column character sets and collations. Name associated with the server's thread instrumentation code, for example thread/sql/main for the server's main() function, and thread/sql/one_connection for a user MariaDB is the leading enterprise open source database with features previously only available in costly proprietary databases. Whether or not the engine supports transactions. 08 Enterprise. Dec 16, 2021 · In MariaDB, we can use the SHOW PROCEDURE STATUS command to return a list of stored procedures. For example, when searching for tables in the test Description. 显示 MariaDB 数据库的结构（数据库、表、列和索引）。. 2 CS. FROM information_schema. Example. mysql’ schema: plugin; help_* tables Performance Schema threads Table. To see a list of the options your version of mariadb-dump supports, execute mariadb CHANGE HISTORY. MySQL 5. 여기에는 다음 열이 포함됩니다. Profiling information is only recorded if the profiling session variable is set to 1. 0 for a function RETURNS clause. TABLE_SCHEMA. GROUP BY table_schema. id int, name varchar(20) id int, name varchar(20) Parent topic: External tables based on a non-default schema. Definition of the view. The Information Schema KEYWORDS table contains the list of MariaDB keywords. You can also list a table's indexes with the mariadb-show command: mariadb-show -k db_name tbl_name. +--------------------+. Either ONE TIME or RECURRING. Jun 14, 2012 · Locks you take out after the mdl instrument has been enabled can be seen by running a SELECT against the performance_schema. The Information Schema ENABLED_ROLES table shows the enabled roles for the current session. The prefix is displayed together with MariaDB DATE when SHOW CREATE TABLE is executed in SQL_MODE=ORACLE. See Appendix for details. Oct 19, 2017 · MariaDb 5. The Performance Schema needs to be enabled for the table to be populated. Previously, root was the definer, which resulted in privilege problems when this username was changed ( MDEV-19650 ). TABLES and get the collation for a specific table: SELECT TABLE_SCHEMA , TABLE_NAME , TABLE_COLLATION FROM INFORMATION_SCHEMA. 2. The table name. 从 MariaDB 10. Session value of the variable or NULL if the variable only has a global scope. For example, when searching for tables in the test Information Schema WSREP_STATUS Table. Knowledge Base » MariaDB Server Documentation » Using MariaDB Server » SQL Statements & Structure » SQL Statements » Built-in Functions » Secondary Functions » Information Functions » SCHEMA. Content reproduced on this site is the property of its respective owners, and this content is not reviewed in advance by MariaDB. Only users with the SUPER privilege can access information from this table. routines table to do the same thing. Show statement (option 2) show schemas; Columns. 5, there are 80 Performance Schema tables, while until MariaDB 10. 0, it is possible to add a comment of a maximum of 1024 bytes. 3 ES, in 10. 0 까지는 TEMPORARY 가 아닌 테이블만, Information Schema 데이터베이스의 테이블은 제외) 및 views 에 대한 정보를 표시합니다. USER. The table is not a standard Information Schema table, and is a MariaDB extension. The output contains the following fields: Type: Always performance_schema. The reason is that a user with no privileges to a database should not be able to know if a SHOW DATABASES lists the databases on the MariaDB server host. 6. Applications can pass key/value connection attributes to the server when a connection is made. WHERE Table_Type LIKE 'VIEW'; Mar 8, 2012 · Additional You can get size of the mysql databases as following. For example Oct 2, 2017 · mariabackup becomes very slow if the MariaDB server has many schemes/many tables and using --lock-ddl or --lock-ddl-per-table option. Database name. The Information Schema TABLE_PRIVILEGES table contains table privilege information derived from the mysql. Mar 11, 2019 · This feature produces a trace as a JSON document for any SELECT / UPDATE / DELETE containing information about decisions taken by the optimizer during the optimization phase (choice of table access method, various costs, transformations, etc). It contains the following columns: The schema (database) name. 08 , in 23. MariaDB starting with 10. Still, don't bother to OPTIMIZE too often. Name of the routine. STATISTICS table stores similar information. Generic query. row ***** Table: european_names Create Table: CREATE TABLE `european_names` ( `croatian_names` varchar(40) CHARACTER SET cp1250 COLLATE cp1250_croatian_ci DEFAULT NULL, `greek_names` varchar(40) CHARACTER SET greek DEFAULT mariadb-show db_name 有关详细信息，请参阅 mariadb-show 。 如果您没有基表或视图的权限，它不会显示在 SHOW TABLES 或 mariadb-show db_name 的输出中。 information_schema. . tables table to check the size of a database. 08, in 23. It is a shortcut for SHOW COLUMNS FROM . The same information can be returned using the SHOW WSREP_STATUS statement. 0, only non- TEMPORARY tables, except for tables from the Information Schema database) and views on the server. Once a month might suffice. AND TABLE_NAME = 'tabname'. SHOW QUERY_RESPONSE_TIME is available from MariaDB 10. 4-1. 2 introduces a new INFORMATION SCHEMA plugin WSREP_INFO that enables querying these information via INFORMATION SCHEMA tables. If you are not connected to any specific database, you can specify the database name in the show The Information Schema TRIGGERS table contains information about triggers. The server will handle legacy applications by extending the default database in the connection to contain the catalog in the form “catalog/database”. 7 The Information Schema GLOBAL_VARIABLES and SESSION_VARIABLES tables stores a record of all system variables and their global and session values respectively. 表示されるデータベース、テーブルはインストール時のデフォルト。. Whether the view is updatable or not. From MariaDB 10. partitions WHERE TABLE_SCHEMA='your_database' AND TABLE_NAME = 'your_table' AND PARTITION_NAME IS NOT NULL. 1, but effectively replaced by the generic SHOW information_schema_table statement. The Information Schema EVENTS table stores information about Events on the server. Index name. DESCRIBE provides information about the columns in a table. These are . To show indexes associated with a table, you use the following statement: show indexes from table_name; Code language: SQL (Structured Query Language) (sql) In this syntax, you specify the name of the table from which you want to show the indexes. Total fragmented tables: 23 This implies that OPTIMIZE TABLE _might_ help. Name: The name of a table, the name of an internal buffer, or the performance_schema Jan 18, 2019 · The query below lists databases (schemas) on MariaDB instance. Knowledge Base » MariaDB Server Documentation » Using MariaDB Server » SQL Statements & Structure » SQL Statements » Administrative SQL Statements » SHOW. SHOW CREATE DATABASE quotes database names according to the value of the sql_quote_show_create server system variable. There are 3 related questions . Notes. Oct 3, 2015 · MDEV-19697 MariaDB crash/signal 11 when performing 'use information_schema' expression Closed MDEV-19721 use information_schema results in "[ERROR] mysqld got signal 11" Jan 23, 2024 · The SHOW TABLES statement in MariaDB offers a list of tables that are associated with a given database. select schema_name as database_name from information_schema. TABLE_CATALOG. We can also use the FULL modifier to return a second column that displays the type: SHOW FULL TABLES. Plugin status, one of ACTIVE, INACTIVE, DISABLED or DELETED. metadata_locks table. One cannot use USE DATABASE to a database one has no privileges to. opt file, as well as to the information_schema. ROLES_MAPPING table. LIKE 句が単独で存在する場合、どのテーブル名が一致するかを示します。. If the comment length exceeds this length, a error/warning code 4144 is thrown. 08. History. The REFERENTIAL_CONSTRAINTS table has more information 从 MariaDB 10. A connection holding this kind of lock can read table metadata modify and read table data. 0. It contains the following columns: Database name associated with the routine. For example: SHOW COLUMNS FROM yourTable; Or with a prefixed database name: SHOW COLUMNS FROM yourDatabase. In MariaDB, we can query the information_schema. 3 ES , in 10. 5 ES, in 10. Some storage engines, such as MyISAM, store the exact count. 5, the client was called mysqlshow. Always def. 6 Enterprise. The SHOW VIEW privilege is required to view the table. SHOW SCHEMAS is a synonym for SHOW DATABASES. 0 for disabling, -1 (the default) for automated sizing. Let’s take some examples of using the show databases statement. We can group the results and return the aggregate amounts for each database. 6 ES , in 10. `SCHEMATA` ORDER BY `SCHEMA_NAME`; On a different server with MariaDB 10. This is part of the User Statistics feature, which is not enabled by default. 4 ES , in 10. CHARACTER_SET_NAME. 6 ES, in 10. See also: SQL Statements for MariaDB Xpand 23. Whether or not the engine supports XA transactions. The Information Schema COLUMN_PRIVILEGES table contains column privilege information derived from the mysql. It contains the following columns: Name of the storage engine. Get list of tables for your db. Whether the routine is a PROCEDURE or a FUNCTION. tables. setup_instruments SET enabled='YES', timed='YES'. The WSREP_STATUS table is part of the WSREP_INFO plugin. SELECT table_schema "DB Name", Round(Sum(data_length + index_length) / 1024 / 1024, 1) "DB Size in MB". The SHOW TABLES command lists the non- TEMPORARY tables, sequences and views in a given database. One of SELECT, INSERT, UPDATE, REFERENCES, ALTER, INDEX, DROP or CREATE VIEW. MariaDB show databases statement examples. The data it displays is from the query: SELECT * FROM information_schema. The views, information and opinions expressed by this content do not necessarily represent those of INNODB_MUTEXES table provides similar information. Maximum length. Aug 26, 2014 · 65. 1: FLUSH and SHOW for plugins" Lists the non-temporary tables, sequences, and views in the given database. 3 CS , and in 10. TABLES WHERE TABLE_NAME = 't_name'; that gives a much more readable output in contrast to SHOW TABLE STATUS that contains a lot of irrelevant information. schemata order by schema_name; B. 2 CS Information about roles and who they've been granted to can be found in the Information Schema APPLICABLE_ROLES table as well as the mysql. To obtain information about table structure in column listing format we can use DESCRIBE: MariaDB [laravel]> DESCRIBE users; See full list on mariadb. Lock's transaction ID. This does of course mean opening a connection to the database. The Information Schema PARTITIONS contains information about table partitions, with each record corresponding to a single partition or subpartition of a partitioned table. The show schemas is a synonym for show databases, therefore, you can use them interchangeably. It contains the following columns: The Information Schema TABLE_CONSTRAINTS table contains information about tables that have constraints. Global value of the variable or NULL if the variable only has a session scope. tables_priv grant table. INFORMATION_SCHEMA plugins add new tables to the INFORMATION_SCHEMA. The SHOW TABLES command lists the non- TEMPORARY tables, sequences and views in a given database: SHOW TABLES; Result: +--------------------+. In the format user_name@host_name. 07. It contains the following columns: Name of the plugin. First, show all databases in the server: show databases; Code language: SQL (Structured Query Language) (sql) The host_cache table contains host and IP information from the host_cache, used for avoiding DNS lookups for new client connections. WHERE TABLE_SCHEMA = 'dbname'. 0+ second time: Jan 17, 2019 · This query returns a list of tables in a database (schema) with their number of rows. 18 "SHOW DATABASES" works fine, even I think users on both servers have the same privileges: MariaDB 10. どうするんだっけ?てなるのでメモ。. ローカル接続で確認。. 5-1. The Information Schema SLAVE_STATUS table contains replica status information, similar to SHOW REPLICA STATUS. You can also use SHOW DATABASES, SHOW TABLES, SHOW COLUMNS, SHOW INDEX and SHOW TABLE STATUS, as well as Dec 11, 2019 · In modern MariaDB versions, a table is created in the system tablespace only if the innodb_file_per_table system variable is set to 0 at the moment of the table creation. session_connect_attrs is a Performance Schema table that shows connection attributes for all sessions. See also: SQL Statements for MariaDB Enterprise Server See List of Performance Schema Tables for a full list and links to detailed descriptions of each table. Extended SHOW で説明 The Information Schema PARAMETERS table stores information about stored procedures and stored functions parameters. The prefix is not displayed when SHOW CREATE TABLE is executed in SQL_MODE=DEFAULT, or when a non-ambiguous data type is displayed. The column sequence number, starting at 1. 1 , in 6. It contains the following columns: System variable name. There are lots of INFORMATION_SCHEMA plugins, because they can be used to show just anything to the user and are very easy to write. Provides the CREATE TABLE statement needed to recreate the given table. DEFAULT_COLLATE_NAME. We can also query the information_schema. See SHOW REPLICA STATUS for column descriptions. 5 CS , in 10. The easiest way to list out all stored procedures is to use the SHOW PROCEDURE STATUS command. The Information Schema SCHEMATA table stores information about databases on the server. Column Listing Format. A. This statement shows how much memory is used for performance_schema tables and internal buffers. IP's resolved DNS host name, or NULL if unknown. 2 ES , in 10. Description: Specifies how many of the running server threads (see max_connections and max_delayed_threads) can be instrumented. MariaDB is the leading enterprise open source database with features previously only available in costly proprietary databases. ← Information Schema SEQUENCES Table. TABLE_STATISTICS table shows statistics on table usage. Show statement (option 1) show databases; C. One row: represents one Provides the CREATE TABLE statement needed to recreate the given table. ORDER BY `DB Size in MB` DESC; Result. It contains the following columns: Database name. 13, the dedicated mariadb. 5 CS, in 10. Tables created while innodb_file_per_table=1 are written into their own tablespace. mariadb-dump does not dump the INFORMATION_SCHEMA (or PERFORMANCE_SCHEMA, if enabled) database by default. Default collation. Syntax of SHOW TABLES: SHOW TABLES [FROM database_name] [LIKE 'pattern SHOW - MariaDB Knowledge Base. Another way to set the default database is specifying its name at mariadb command line client startup. Activating the Performance Schema. 6 CS, in 10. You see only those databases for which Oct 6, 2011 · SELECT `SCHEMA_NAME` FROM `information_schema`. Plugin type; STORAGE ENGINE, INFORMATION_SCHEMA, AUTHENTICATION, REPLICATION, DAEMON or AUDIT The Information Schema PROFILING table contains information about statement resource usage. This is the same information as displayed by the SHOW VARIABLES commands SHOW GLOBAL VARIABLES and SHOW SESSION VARIABLES. SQL. 0 , and in 5. Whether the engine is the default, or is supported or not. The WHERE and LIKE clauses can be given to select rows using more general conditions, as discussed in Extended SHOW. ID. ↑ Information Schema Tables ↑. 23. columns_priv grant table. SCHEMA. It has the following columns: Column. This is the same information as displayed by the SHOW STATUS commands SHOW GLOBAL STATUS and SHOW SESSION STATUS. The performance schema is disabled by default for performance reasons. The Information Schema USER_PRIVILEGES table contains global user privilege information derived from the mysql. Each non-partitioned table also has a record in the PARTITIONS table, but most of the values are NULL. It contains the following columns: Query_ID. Query. The Information Schema SYSTEM_VARIABLES table shows current values and various metadata of all system variables. There is one row for each instrument in the source code. 6 CS , in 10. YES if the WITH CHECK_OPTION clause has been specified, NO otherwise. | Owners |. The plugin is not enabled by default, so in order to use it, it needs to be installed first : MariaDB You can query INFORMATION_SCHEMA. When an instrument is enabled and executed, instances are created which are then stored in the cond_instances, file_instances, mutex_instances, rwlock_instances or socket Lists information on the non-temporary tables, sequences, and views in the given database. We can use the WHERE clause to narrow it to just views. Galera node cluster status information. The return value's data type (for stored functions). Version from the plugin's general type descriptor. Event definer. 56. In such cases, use SELECT COUNT(*) to obtain an accurate The Information Schema STATISTICS table provides information about table indexes. Should be greater than the sum of max_connections and max_delayed_threads. Time zone used for the event's scheduling and execution, by default SYSTEM. By default, innodb_file_per_table is 1. | Tables_in_pethouse |. The event that activates the trigger. Description. It blocks all attempts to read or update table data, while allowing INFORMATION_SCHEMA and SHOW queries. SHOW ENGINE PERFORMANCE_SCHEMA STATUS. The SHOW TABLE_STATISTICS statementis part of the User Statistics feature. Storage engine comments. The mysql. col_name can be a column name, or a string containing the SQL " % " and " _ " wildcard characters to obtain output only for the columns with names matching the string. There are multiple options if you want column listing format: Using DESCRIBE. . Commandline: --performance-schema-max-thread-instances=#. The metadata_locks table contains metadata lock information. WORD. 4. MariaDB dumps the INFORMATION_SCHEMA if you name it explicitly on the command line, although currently you must also use the --skip-lock-tables option. The same information can be queried from the Information You follow an example of how to create an external table in MariaDB using your own schema. See also: SQL Statements for MariaDB Enterprise Server 23. In later versions of MySQL you can use the information_schema database to tell you when another table was updated: SELECT UPDATE_TIME. These statements also display information for views. For other storage engines, such as InnoDB, this value is an approximation, and may vary from the actual value by as much as 40% to 50%. It contains the following columns: Database where the event was defined. 07 ES, in 10. It provides an immediate and quick way to view the current list of tables that are available in the database without using complicated queries or interfaces. Present starting in MariaDB Enterprise Server 10. The primary key is always named PRIMARY. The threads table contains the following columns: A unique thread identifier. Information Schema 테이블은 서버의 다양한 테이블 ( MariaDB 11. Oct 4, 2013 · From MariaDB 10. Table name. To enable metadata lock instrumention, at runtime: UPDATE performance_schema. The host_cache table contains the following columns: Client IP address. The SHOW CHARACTER SET statement shows all available character sets. 07 ES , in 10. Type of constraint; one of UNIQUE, PRIMARY KEY, FOREIGN KEY or CHECK. 2 开始， mysqlshow 是符号链接， mariadb-show 是二进制名称。. The Information Schema CHARACTER_SETS table contains a list of supported character sets, their default collations and maximum lengths. SELECT `TABLE_SCHEMA`, -- Foreign key schema `TABLE_NAME`, -- Foreign key table `COLUMN_NAME`, -- Foreign key column `REFERENCED_TABLE_SCHEMA`, -- Origin key schema `REFERENCED_TABLE_NAME`, -- Origin key table `REFERENCED_COLUMN_NAME` -- Origin key column FROM `INFORMATION_SCHEMA`. A) MariaDB show databases example. Column. Enterprise grade, wallet friendly. SHOW TABLES lists the non- TEMPORARY tables, sequences and views in a given database. Jul 12, 2017 · Based on xudre's answer, you can execute the following to see all the relations of a schema:. global_priv grant table. The DATABASE() function (SCHEMA() is a synonym) returns the default database. cy tg ld ze fa tu cq lx is fd