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DESCRIBE TABLE

显示给定表中列的信息。等效于 SHOW FIELDS

tip

SHOW COLUMNS 提供了关于表列的类似但更全面的信息。

语法

DESC|DESCRIBE [TABLE] [ <database_name>. ]<table_name>

示例

CREATE TABLE books
(
price FLOAT Default 0.00,
pub_time DATETIME Default '1900-01-01',
author VARCHAR
);

DESC books;

Field |Type |Null|Default |Extra|
--------+---------+----+----------------------------+-----+
price |FLOAT |YES |0 | |
pub_time|TIMESTAMP|YES |'1900-01-01 00:00:00.000000'| |
author |VARCHAR |YES |NULL | |
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