SHOW TABLES

功能描述

查看当前库（或schema)的表清单。

注意事项

• 若不指定db_name，查询的是当前库(或schema)下的表清单。

语法格式

SHOW [FULL] TABLES
   [{FROM | IN} db_name]
   [LIKE 'pattern' | WHERE expr]

参数说明

• db_name

  库名（或schema）,可选项，若不指定，则查询的是当前库或schema。

• LIKE 'pattern'

  pattern匹配显示结果第一列(列名为'Tables_in_dbname [pattern]'）。

示例

--创建简单表
openGauss=# CREATE SCHEMA tst_schema;
openGauss=# SET SEARCH_PATH TO tst_schema;

openGauss=# CREATE TABLE tst_t1
openGauss-# (
openGauss(# id int primary key,
openGauss(# name varchar(20) NOT NULL,
openGauss(# addr text COLLATE "de_DE",
openGauss(# phone text COLLATE "es_ES",
openGauss(# addr_code text
openGauss(# );
openGauss=# CREATE VIEW tst_v1 AS SELECT * FROM tst_t1;
openGauss=# CREATE TABLE t_t2(id int);

--查看库（或SCHEMA）下表清单信息
openGauss=# show tables;
 Tables_in_tst_schema 
----------------------
 tst_t1
 tst_v1
 t_t2

openGauss=# show full tables;
 Tables_in_tst_schema | Table_type 
----------------------+------------
 tst_t1               | BASE TABLE
 tst_v1               | VIEW
 t_t2                 | BASE TABLE

openGauss=# show full tables in tst_schema;
 Tables_in_tst_schema | Table_type 
----------------------+------------
 tst_t1               | BASE TABLE
 tst_v1               | VIEW
 t_t2                 | BASE TABLE
 
--模糊匹配、过滤
openGauss=# show full tables like '%tst%';
 Tables_in_tst_schema (%tst%) | Table_type 
------------------------------+------------
 tst_t1                       | BASE TABLE
 tst_v1                       | VIEW

openGauss=# show full tables where Table_type='VIEW';
 Tables_in_tst_schema | Table_type 
----------------------+------------
 tst_v1               | VIEW