表和字段注释(COMMENT ON)

蓝色底色的字为个人喜欢的名字，根据喜好进行修改

表和字段注释(COMMENT ON)

COMMENT ON TABLE username.table_name IS '测试表'

COMMENT ON COLUMN username.table_name.column_name1 IS '字段1'

COMMENT ON COLUMN username.table_name.column_name2 IS '字段2'