原创作品，出自 “深蓝的blog” 博客，欢迎转载，转载时请务必注明以下出处，否则追究版权法律责任。
深蓝的blog：http://blog.csdn.net/huangyanlong/article/details/43988377
今天在群里学来一着，通过DBMS_METADATA.GET_DDL来生成建表或视图的sql语句。
（1）、生成创建表的sql语句
SQL> set long 20000;
SQL> SELECT DBMS_METADATA.GET_DDL(‘TABLE‘,‘TEMP‘,‘HYL‘) code FROM DUAL;
--注意三个参数都需要大写
CODE -------------------------------------------------------------------------------- CREATE TABLE "HYL"."TEMP" ( "EMPLOYEE_ID" NUMBER, "EMPLOYEE_NAME" VARCHAR2(20), "EMPLOYEE_POSITION" VARCHAR2(20) ) SEGMENT CREATION DEFERRED PCTFREE 10 PCTUSED 40 INITRANS 1 MAXTRANS 255 NOCOMPRESS LOGGING TABLESPACE "HYL_SYSTEM"
（2）、生成创建视图的sql语句
再来做个视图的实验
SQL> select * from user_users
2 ;
USERNAME USER_ID ACCOUNT_STATUS LOCK_DATE EXPIRY_DATE DEFAULT_TABLESPACE TEMPORARY_TABLESPACE CREATED INITIAL_RSRC_CONSUMER_GROUP EXTERNAL_NAME ------------------------------ ---------- -------------------------------- ----------- ----------- ------------------------------ ------------------------------ ----------- ------------------------------ -------------------------------------------------------------------------------- SYS 0 OPEN 2015/4/20 2 SYSTEM TEMP 2010/3/30 1 SYS_GROUP
SQL> SET LONG 20000;
SQL> SELECT DBMS_METADATA.GET_DDL(‘VIEW‘,‘USER_USERS‘,‘SYS‘) code FROM DUAL;
--注意三个参数都需要大写，表示sys用户下，叫做“USER_USERS”的视图
CODE
--------------------------------------------------------------------------------
CREATE OR REPLACE FORCE VIEW "SYS"."USER_USERS" ("USERNAME", "USER_ID", "ACCOU
select u.name, u.user#,
m.status,
decode(u.astatus, 4, u.ltime,
5, u.ltime,
6, u.ltime,
8, u.ltime,
9, u.ltime,
10, u.ltime, to_date(NULL)),
decode(u.astatus,
1, u.exptime,
2, u.exptime,
5, u.exptime,
6, u.exptime,
9, u.exptime,
10, u.exptime,
decode(u.ptime, '', to_date(NULL),
decode(p.limit#, 2147483647, to_date(NULL),
decode(p.limit#, 0,
decode(dp.limit#, 2147483647, to_date(NULL), u.ptime +
dp.limit#/86400),
u.ptime + p.limit#/86400)))),
dts.name, tts.name, u.ctime,
nvl(cgm.consumer_group, 'DEFAULT_CONSUMER_GROUP'),
u.ext_username
from sys.user$ u left outer join sys.resource_group_mapping$ cgm
on (cgm.attribute = 'ORACLE_USER' and cgm.status = 'ACTIVE' and
cgm.value = u.name),
sys.ts$ dts, sys.ts$ tts, sys.user_astatus_map m,
profile$ p, profile$ dp
where u.datats# = dts.ts#
and u.tempts# = tts.ts#
and u.astatus = m.status#
and u.type# = 1
and u.user# = userenv('SCHEMAID')
and u.resource$ = p.profile#
and dp.profile# = 0
and dp.type# = 1
and dp.resource# = 1
and p.type# = 1
and p.resource# = 1
小知识，简而记之。
原创作品，出自 “深蓝的blog” 博客，欢迎转载，转载时请务必注明以下出处，否则追究版权法律责任。
深蓝的blog：http://blog.csdn.net/huangyanlong/article/details/43988377
SQL_使用DBMS_METADATA.GET_DDL生成建表语句
原文地址：http://blog.csdn.net/huangyanlong/article/details/43988377
