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information_schema.SCHEMATA

更新时间：2026-04-10 12:01:01

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功能

展示数据库元信息。

说明

从 V1.4 版本开始引入。

字段说明

字段名称	类型	是否可以为 NULL	描述
CATALOG_NAME	varchar(3)	NO	固定值 def
SCHEMA_NAME	varchar(128)	NO	数据库名
DEFAULT_CHARACTER_SET_NAME	varchar(7)	NO	默认字符集
DEFAULT_COLLATION_NAME	varchar(18)	NO	默认比对规则
SQL_PATH	null	NO	NULL
DEFAULT_ENCRYPTION	varchar(2)	NO	默认是否加密

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