1. Creating a Database with DBCA DatabaseConfiguration Assistant (DBCA) is the preferred way to create a database,because it is a more automated approach, and your database is ready to use whenDBCA completes. DBCA can be launched by the Oracle Univ…
Mysql 创建表之前判断表是否存在,如果存在则删除已有表 DROP TABLE IF EXISTS sys_area; CREATE TABLE sys_area ( id int NOT NULL AUTO_INCREMENT COMMENT '编号', parent_id varchar(64) NOT NULL COMMENT '父级编号', parent_ids varchar(2000) NOT NULL COMMENT '所有父级编号', name varchar(100) NOT…