oracle清空所有表数据
方法：
1. 删除所有外键约束
2. drop表
3. 添加外键约束
代码使用powerdesign生成
/*==============================================================*/
/* DBMS name: ORACLE Version 10g */
/* Created on: 2013/8/16 14:30:03 */
/*==============================================================*/
alter table Da_pic
drop constraint FK_DA_PIC_REFERENCE_DA_PICSU;
drop table Da_pic cascade constraints;
drop table Da_picsubject cascade constraints;
/*==============================================================*/
/* Table: Da_pic */
/*==============================================================*/
create table Da_pic (
ID VARCHAR2(200) not null,
no VARCHAR2(200),
subjiectid VARCHAR2(200),
Name VARCHAR2(400),
UploadTime DATE,
UserId VARCHAR2(200),
picdate DATE,
place VARCHAR2(200),
people VARCHAR2(200),
event VARCHAR2(200),
background VARCHAR2(200),
cameramen VARCHAR2(200),
serial INTEGER,
IsEffect VARCHAR2(200),
constraint PK_DA_PIC primary key (ID)
);
/*==============================================================*/
/* Table: Da_picsubject */
/*==============================================================*/
create table Da_picsubject (
ID VARCHAR2(200) not null,
no VARCHAR2(200),
title VARCHAR2(200),
year VARCHAR2(200),
type VARCHAR2(200),
gdtime DATE,
iseffect VARCHAR2(200),
seiral INTEGER,
constraint PK_DA_PICSUBJECT primary key (ID)
);
alter table Da_pic
add constraint FK_DA_PIC_REFERENCE_DA_PICSU foreign key (subjiectid)
references Da_picsubject (ID);
