• Table and field names should be lowercase or numeric. Do not only contain numbers between two underlines. For example, ctyun_admin, rds_config, or level_name.
• Do not use MySQL reserved words such as desc, range, match, or delayed.
• The table names should be singular nouns rather than plural nouns.
• The primary key index names are prefixed with pk, unique index names are prefixed with uk, and normal index names are prefixed with idx.
• In different databases or tables, ensure that columns that store the same data have the same name and type to ensure data consistency.