SHOW COLUMNS

描述

返回表中的列列表。如果表不存在,则抛出异常。

语法

SHOW COLUMNS table_identifier [ database ]

参数

示例

-- Create `customer` table in `salesdb` database;
USE salesdb;
CREATE TABLE customer(
    cust_cd INT,
    name VARCHAR(100),
    cust_addr STRING);

-- List the columns of `customer` table in current database.
SHOW COLUMNS IN customer;
+---------+
| col_name|
+---------+
|  cust_cd|
|     name|
|cust_addr|
+---------+

-- List the columns of `customer` table in `salesdb` database.
SHOW COLUMNS IN salesdb.customer;
+---------+
| col_name|
+---------+
|  cust_cd|
|     name|
|cust_addr|
+---------+

-- List the columns of `customer` table in `salesdb` database
SHOW COLUMNS IN customer IN salesdb;
+---------+
| col_name|
+---------+
|  cust_cd|
|     name|
|cust_addr|
+---------+