查询mysql数据库中的表名和注释以及对应列名和注释
SELECT
t.TABLE_NAME,
tb.table_comment,
t.COLUMN_NAME,
t.COLUMN_COMMENT
FROM
information_schema. COLUMNS t,
information_schema. TABLES tb
WHERE
t.TABLE_NAME = tb.TABLE_NAME
AND t.table_schema = '数据库名'
AND tb.table_schema = '数据库名'
AND t.COLUMN_COMMENT <> ''
AND tb.table_comment <> ''