| --- |
| layout: global |
| title: SHOW TABLES |
| displayTitle: SHOW TABLES |
| license: | |
| Licensed to the Apache Software Foundation (ASF) under one or more |
| contributor license agreements. See the NOTICE file distributed with |
| this work for additional information regarding copyright ownership. |
| The ASF licenses this file to You under the Apache License, Version 2.0 |
| (the "License"); you may not use this file except in compliance with |
| the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, software |
| distributed under the License is distributed on an "AS IS" BASIS, |
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| See the License for the specific language governing permissions and |
| limitations under the License. |
| --- |
| |
| ### Description |
| |
| The `SHOW TABLES` statement returns all the tables for an optionally specified database. |
| Additionally, the output of this statement may be filtered by an optional matching |
| pattern. If no database is specified then the tables are returned from the |
| current database. |
| |
| ### Syntax |
| |
| ```sql |
| SHOW TABLES [ { FROM | IN } database_name ] [ LIKE regex_pattern ] |
| ``` |
| |
| ### Parameters |
| |
| * **{ FROM `|` IN } database_name** |
| |
| Specifies the database name from which tables are listed. |
| |
| * **regex_pattern** |
| |
| Specifies the regular expression pattern that is used to filter out unwanted tables. |
| |
| * Except for `*` and `|` character, the pattern works like a regular expression. |
| * `*` alone matches 0 or more characters and `|` is used to separate multiple different regular expressions, |
| any of which can match. |
| * The leading and trailing blanks are trimmed in the input pattern before processing. The pattern match is case-insensitive. |
| |
| ### Examples |
| |
| ```sql |
| -- List all tables in default database |
| SHOW TABLES; |
| +--------+---------+-----------+ |
| |database|tableName|isTemporary| |
| +--------+---------+-----------+ |
| | default| sam| false| |
| | default| sam1| false| |
| | default| suj| false| |
| +--------+---------+-----------+ |
| |
| -- List all tables from userdb database |
| SHOW TABLES FROM userdb; |
| +--------+---------+-----------+ |
| |database|tableName|isTemporary| |
| +--------+---------+-----------+ |
| | userdb| user1| false| |
| | userdb| user2| false| |
| +--------+---------+-----------+ |
| |
| -- List all tables in userdb database |
| SHOW TABLES IN userdb; |
| +--------+---------+-----------+ |
| |database|tableName|isTemporary| |
| +--------+---------+-----------+ |
| | userdb| user1| false| |
| | userdb| user2| false| |
| +--------+---------+-----------+ |
| |
| -- List all tables from default database matching the pattern `sam*` |
| SHOW TABLES FROM default LIKE 'sam*'; |
| +--------+---------+-----------+ |
| |database|tableName|isTemporary| |
| +--------+---------+-----------+ |
| | default| sam| false| |
| | default| sam1| false| |
| +--------+---------+-----------+ |
| |
| -- List all tables matching the pattern `sam*|suj` |
| SHOW TABLES LIKE 'sam*|suj'; |
| +--------+---------+-----------+ |
| |database|tableName|isTemporary| |
| +--------+---------+-----------+ |
| | default| sam| false| |
| | default| sam1| false| |
| | default| suj| false| |
| +--------+---------+-----------+ |
| ``` |
| |
| ### Related Statements |
| |
| * [CREATE TABLE](sql-ref-syntax-ddl-create-table.html) |
| * [DROP TABLE](sql-ref-syntax-ddl-drop-table.html) |
| * [CREATE DATABASE](sql-ref-syntax-ddl-create-database.html) |
| * [DROP DATABASE](sql-ref-syntax-ddl-drop-database.html) |