1.在cmd中输入 exp username/password@连接串
回车，在进入如下时，输入no，就ok了
导出表数据(yes/no)：yes> no
2.
进入plsql
找到table那个大项，点出来，下边会罗列出许多表
右键点中你所需要的那个表名
找到DBMS_Metadata
然后选项里有ddl
弹出来那个窗口就是你的表结构，拷贝出来直接在另一个库里执行就可以啦
-----------------------------补充------------------------
PLSQL里
tools下
export user objects of
按shift批量选择表
执行就行了
3
exp/imp工具；
带参数：rows=y —— 带数据导出导入；
rows=n —— 不带数据的导出导入，只移植结构
只导出3张表的结构：
exp user/pasword@dbServerName owner=user tables=(tb1,tb2,tb3) rows=n file=c:\1.dmp
连带数据导出：
exp user/pasword@dbServerName owner=user tables=(tb1,tb2,tb3) rows=y file=c:\2.dmp
imp user2/pasword@dbServerName2 fromuser=user touser=user2 file=c:\1.dmp
或者
imp user2/pasword@dbServerName2 fromuser=user touser=user2 file=c:\2.dmp
3
方法一：
exp userid=scott/tiger owner=scott
imp userid=scott/tiger full=y indexfile=scott.sql
……
more scott.sql
REM CREATE TABLE "SCOTT"."BONUS" ("ENAME" VARCHAR2(10), "JOB"
REM VARCHAR2(9), "SAL" NUMBER, "COMM" NUMBER) PCTFREE 10 PCTUSED 40
REM INITRANS 1 MAXTRANS 255 STORAGE(INITIAL 65536 FREELISTS 1 FREELIST
REM GROUPS 1) TABLESPACE "USERS" LOGGING NOCOMPRESS ;
REM ... 0 rows
REM CREATE TABLE "SCOTT"."DEPT" ("DEPTNO" NUMBER(2, 0), "DNAME"
REM VARCHAR2(14), "LOC" VARCHAR2(13)) PCTFREE 10 PCTUSED 40 INITRANS 1
REM MAXTRANS 255 STORAGE(INITIAL 65536 FREELISTS 1 FREELIST GROUPS 1)
REM TABLESPACE "USERS" LOGGING NOCOMPRESS ;
REM ... 4 rows
REM CREATE TABLE "SCOTT"."DUMMY" ("DUMMY" NUMBER) PCTFREE 10 PCTUSED 40
REM INITRANS 1 MAXTRANS 255 STORAGE(INITIAL 65536 FREELISTS 1 FREELIST
REM GROUPS 1) TABLESPACE "USERS" LOGGING NOCOMPRESS ;
REM ... 1 rows
REM CREATE TABLE "SCOTT"."EMP" ("EMPNO" NUMBER(4, 0) NOT NULL ENABLE,
REM "ENAME" VARCHAR2(10), "JOB" VARCHAR2(9), "MGR" NUMBER(4, 0),
REM "HIREDATE" DATE, "SAL" NUMBER(7, 2), "COMM" NUMBER(7, 2), "DEPTNO"
REM NUMBER(2, 0)) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255
REM STORAGE(INITIAL 65536 FREELISTS 1 FREELIST GROUPS 1) TABLESPACE
REM "USERS" LOGGING NOCOMPRESS ;
REM ... 14 rows
REM CREATE TABLE "SCOTT"."SALGRADE" ("GRADE" NUMBER, "LOSAL" NUMBER,
REM "HISAL" NUMBER) PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255
REM STORAGE(INITIAL 65536 FREELISTS 1 FREELIST GROUPS 1) TABLESPACE
REM "USERS" LOGGING NOCOMPRESS ;
REM ... 5 rows
…………
把前面的REM去了，再去掉最后一行，创建表的DDL就OK了。
方法二：
set pagesize 0
set long 90000
set feedback off
set echo off
spool get_allddl.sql
connect USERNAME/PASSWORD@SID;
SELECT DBMS_METADATA.GET_DDL('TABLE',u.table_name)
FROM USER_TABLES u;
SELECT DBMS_METADATA.GET_DDL('INDEX',u.index_name)
FROM USER_INDEXES u;
spool off;
My Test:
set pagesize 0
set long 90000
set feedback off
set echo off
spool get_allddl.sql
connect username/password@database;
SELECT DBMS_METADATA.GET_DDL('TABLE',u.table_name)
FROM USER_TABLES u where table_name = 'USER_INFO';
spool off;
SET HEADING OFF;
SET ECHO OFF;
SET LONG 90000;
SPOOL D:\test.txt
SELECT dbms_metadata.get_ddl('TABLE','USER_INFO') FROM SYS.DBA_USERS WHERE USERNAME = 'GINGKO';
SPOOL OFF;