create a relational database based on a schema defined in this package if argument sql is not specified. There are two tables (experiment and mz) defined to capture necessary information to annotate ions or peaks.
基于在此包中定义的架构,如果没有指定参数的SQL创建一个关系数据库。有两个表(实验和MZ)定义为获取必要的信息,注释离子或山峰。