show tables或show tables from database_name; // 显示当前数据库中所有表的名称show databases; // 显示mysql中所有数据库的名称show columns from table_name from database_name; 或show columns from database_name.table_name; // 显示表中列名称show grants for user_n…
下面这个图挺有用的,收藏一下。Oracle has two products that implement Java Platform Standard Edition (Java SE) 8: Java SE Development Kit (JDK) 8 and Java SE Runtime Environment (JRE) 8.JDK 8 is a superset of JRE 8, and contains everything that is…