如何获取并展示MySQL数据库中的资源属性值？

 MySQL中显示数据库属性值的查询语句 1. 显示所有数据库的名称及其字符集和排序规则 SELECT     SCHEMA_NAME AS Database_Name,     DEFAULT_COLLATION_NAME AS Collation,     DEFAULT_CHARACTER_SET_NAME AS Character_Set FROM     INFORMATION_SCHEMA.SCHEMATA; 2. 显示当前数据库的属性值 SELECT     SCHEMA_NAME AS Database_Name,     DEFAULT_COLLATION_NAME AS Collation,     DEFAULT_CHARACTER_SET_NAME AS Character_Set FROM     INFORMATION_SCHEMA.SCHEMATA WHERE     SCHEMA_NAME = DATABASE(); 3. 显示所有表的属性值 SELECT     TABLE_SCHEMA AS Database_Name,     TABLE_NAME,     TABLE_TYPE,     ENGINE,     TABLE_COLLATION FROM     INFORMATION_SCHEMA.TABLES WHERE     TABLE_SCHEMA = DATABASE(); 4. 显示当前表的所有列的属性值 SELECT     TABLE_SCHEMA AS Database_Name,     TABLE_NAME,     COLUMN_NAME,     DATA_TYPE,     COLUMN_DEFAULT,     IS_NULLABLE,     COLUMN_TYPE,     COLUMN_KEY,     EXTRA FROM     INFORMATION_SCHEMA.COLUMNS WHERE     TABLE_SCHEMA = DATABASE()     AND TABLE_NAME = 'your_table_name'; 替换 'your_table_name' 为你想要查询的表名

SQL语句分别用于查询数据库的名称、字符集、排序规则，以及表的名称、类型、引擎、列属性等信息，请根据实际需要替换查询中的表名和数据库。