oracle部分: 定义类型(用于字符串分割): create or replace TYPE "STR_SPLIT" IS TABLE OF VARCHAR2 (4000); 字符串分割函数: create or replace FUNCTION splitstr(p_string IN VARCHAR2, p_delimiter IN VARCHAR2) RETURN str_split PIPELINEDAS v_length NUMBER := LENGTH(p_string)
1)掌握增.删.改数据和事务操作 2)掌握[视图]和同义词 3)掌握[序列]和索引 4)了解有关用户和权限的控制 -------------------------------------------------------------------------------------准备篇 col empno for 9999;col ename for a10;col job for a10;col mgr for 9999;col hiredate for a12;col sal for 9