摘要：
1,JDBC:一种可执行SQL语句的api2,MySQL没有图形化界面,如SQLServer和MySQL Front3,关系形数据库简单说就是表的集合. 面向对象形如SQL Server2005 和Oracle 10g还未大规模应用4,SQL : Structured Quary Language5,查询语句分4类: one:select two:Data Manipulation Language---insert,update,delete three:Data Definition Language----create,alter,drop,truncate four:Data... 阅读全文