hey there 👋 hope you are doing well 🙂 in the last blog we have discussed about basic introduction to sql. in this blog we are going to see some of the basic commands of sql. we will be discussing...
本文介绍了sql中的数据定义语言(ddl)命令,包括创建、修改和删除数据库对象。常用命令有create、alter、drop、truncate、rename和comment。create用于创建数据库和表,show显示元数据,use选择数据库,alter修改对象,drop删除对象,truncate清空表但不影响结构。下篇将讨论数据操作语言(dml)命令。