get_db_link_scripts

在用exp按用户进行导出的时候没有导出db_link语句。由于版本太老不能使用dbms_metadata.get_ddl获得。通过查询link$用sql拼接创建语句。 sql语句拼接 SQL @DESC link$; Name NULL? TYPE ------------------------------- -------- -------------------------

在用exp按用户进行导出的时候没有导出db_link语句。由于版本太老不能使用dbms_metadata.get_ddl获得。通过查询link$用sql拼接创建语句。

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百度飞桨-文心大模型 ERNIE 3.0 文本理解与创作

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• sql语句拼接

SQL> @DESC link$;
           Name                            NULL?    TYPE
           ------------------------------- -------- ----------------------------
    1      OWNER#                          NOT NULL NUMBER
    2      NAME                            NOT NULL VARCHAR2(128)
    3      CTIME                           NOT NULL DATE
    4      HOST                                     VARCHAR2(2000)
    5      USERID                                   VARCHAR2(30)
    6      PASSWORD                                 VARCHAR2(30)
    7      FLAG                                     NUMBER
    8      AUTHUSR                                  VARCHAR2(30)
    9      AUTHPWD                                  VARCHAR2(30)
   10      PASSWORDX                                RAW(128)
   11      AUTHPWDX                                 RAW(128)
 
SQL> @DESC USER$
           Name                            NULL?    TYPE
           ------------------------------- -------- ----------------------------
    1      USER#                           NOT NULL NUMBER
    2      NAME                            NOT NULL VARCHAR2(30)
    3      TYPE#                           NOT NULL NUMBER
    4      PASSWORD                                 VARCHAR2(30)
    5      DATATS#                         NOT NULL NUMBER
    6      TEMPTS#                         NOT NULL NUMBER
    7      CTIME                           NOT NULL DATE
    8      PTIME                                    DATE
    9      EXPTIME                                  DATE
   10      LTIME                                    DATE
   11      RESOURCE$                       NOT NULL NUMBER
   12      AUDIT$                                   VARCHAR2(38)
   13      DEFROLE                         NOT NULL NUMBER
   14      DEFGRP#                                  NUMBER
   15      DEFGRP_SEQ#                              NUMBER
   16      ASTATUS                         NOT NULL NUMBER
   17      LCOUNT                          NOT NULL NUMBER
   18      DEFSCHCLASS                              VARCHAR2(30)
   19      EXT_USERNAME                             VARCHAR2(4000)
   20      SPARE1                                   NUMBER
   21      SPARE2                                   NUMBER
   22      SPARE3                                   NUMBER
   23      SPARE4                                   VARCHAR2(1000)
   24      SPARE5                                   VARCHAR2(1000)
   25      SPARE6                                   DATE
 
CREATE DATABASE link aa3
    CONNECT TO ogg1
    IDENTIFIED BY ogg1
    USING '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.65)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl )
)
)';
 
 
SELECT 'CREATE DATABASE LINK '|| L.NAME ||' CONNECT TO ' || USERID || ' IDENTIFIED BY VALUES '||chr(39) || l.PASSWORDX ||chr(39)||' using ' ||chr(39)|| HOST||chr(39) link
FROM link$ l,
           USER$ u
WHERE l.OWNER# = u.USER#
  5    AND u.name='TRAVEL';
 
LINK
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
CREATE DATABASE LINK TEST1 CONNECT TO TRAVEL IDENTIFIED BY VALUES '06307628FF3A73A9C177ED8D3E190256FCBED62E1EC3DD10847F3230BECF08C9298C6C1BC4ABF16E6A3843133008C4A1622CA2463929A98EE88F1829573454067B6F1861101DAA4049AAD974855562FC410CE5A0F3A2E91F6F945E88288AC0E66FA298D7570BF5A1CE70D522F6E53E07C12237112FC4BB723E4AA0CDA3A825DF' USING '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.65)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME =orcl)
)
)'
 
CREATE DATABASE LINK AA3 CONNECT TO OGG1 IDENTIFIED BY VALUES '06BA16CF75CF21FA683544FBB18E8FDC01BE754AA4DFA90CFB605658172AF45FB7CD9B01BF898872DA0CAC950EFF38D65BFC3A4EEB08286422C6DBC680C5503D3A371217ADA11AB5724A1C4E0E69080C659ED064D89BB784F7267174E526F975DCCD92116A3E37807DB2711241240392FAA5174505A8E6FA60445495A73C3B8F804' USING '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.65)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl )
)
)'
 
CREATE DATABASE LINK AA5 CONNECT TO OGG1 IDENTIFIED BY VALUES '06BA16CF75CF21FA683544FBB18E8FDC01BE754AA4DFA90CFB605658172AF45FB7CD9B01BF898872DA0CAC950EFF38D65BFC3A4EEB08286422C6DBC680C5503D3A371217ADA11AB5724A1C4E0E69080C659ED064D89BB784F7267174E526F975DCCD92116A3E37807DB2711241240392FAA5174505A8E6FA60445495A73C3B8F804' USING '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.65)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl )
)
)'
 
CREATE DATABASE LINK AA CONNECT TO goldengate IDENTIFIED BY VALUES '06DE83525450FDFCB7219E0B1E895C01C053D2502C11E6FE94CF9DCE0C38BBDCBE8168AAE98DBACA2961CF29636D27F416401238AD84845120BFB204793FBC50A50C8DA8DF52BD785C29B3DC466D897F5FE9F2FBD79D9F85DCDA5604CAB36CB6AF7BFFBDF84F21A74F3898C931291B5D9CF8F2B16BCD75EE7A35F246B8FAD62C' USING '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 135.192.49.136)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = zygl )
)
)'
 
CREATE DATABASE LINK AA1 CONNECT TO goldengate IDENTIFIED BY VALUES '0695C30AE2066EB6340C1A7CAB2CB5DAC253667405EF59B9E1ADD9E9E812D017B3129FC4B0A6D2B063D0B5EAC281A0B91B04FB1F25D1B4C35701654D7B67B1041D1BCF82E63166F480379B2C22DCE31F50554E0BF9B817F9C1B07340BB54385689D3C78F412674C9B1354CC05CB03A5708D51EB9B597716C1DBB4A42CE8E3089' USING 'orcl'
CREATE DATABASE LINK AA6 CONNECT TO OGG1 IDENTIFIED BY VALUES '06BA16CF75CF21FA683544FBB18E8FDC01BE754AA4DFA90CFB605658172AF45FB7CD9B01BF898872DA0CAC950EFF38D65BFC3A4EEB08286422C6DBC680C5503D3A371217ADA11AB5724A1C4E0E69080C659ED064D89BB784F7267174E526F975DCCD92116A3E37807DB2711241240392FAA5174505A8E6FA60445495A73C3B8F804' USING '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.65)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl )
)
)'
 
 
6 ROWS selected.
 
SQL> DROP DATABASE link aa3;
 
DATABASE link dropped.
 
 
CREATE DATABASE LINK AA3 CONNECT TO OGG1 IDENTIFIED BY VALUES '06BA16CF75CF21FA683544FBB18E8FDC01BE754AA4DFA90CFB605658172AF45FB7CD9B01BF898872DA0CAC950EFF38D65BFC3A4EEB08286422C6DBC680C5503D3A371217ADA11AB5724A1C4E0E69080C659ED064D89BB784F7267174E526F975DCCD92116A3E37807DB2711241240392FAA5174505A8E6FA60445495A73C3B8F804' USING '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.65)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl )
)
  8  )';
 
DATABASE link created.
 
SQL> SELECT * FROM tab@aa3;
 
TNAME                          TABTYPE  CLUSTERID
------------------------------ ------- ----------
OGG_CHAR                       TABLE
TEST1                          TABLE

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• dbms_metaDATA.get_ddl

SELECT dbms_metaDATA.get_ddl('DB_LINK',a.db_link,a.owner) FROM dba_db_links a WHERE a.owner='TRAVEL';
 
 CREATE DATABASE LINK "AA"
   CONNECT TO "goldengate" IDENTIFIED BY VALUES '06DE83525450FDFCB7219E0B1E895C01C053D2502C11E6FE94CF9DCE0C38BBDCBE8168AAE98DBACA2961CF29636D27F416401238AD84845120BFB204793FBC50A50C8DA8DF52BD785C29B3DC466D897F5FE9F2FBD79D9F85DCDA5604CAB36CB6AF7BFFBDF84F21A74F3898C931291B5D9CF8F2B16BCD75EE7A35F246B8FAD62C'
   USING '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 135.192.49.136)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = zygl )
)
)'
 
 
  CREATE DATABASE LINK "AA1"
   CONNECT TO "goldengate" IDENTIFIED BY VALUES '0695C30AE2066EB6340C1A7CAB2CB5DAC253667405EF59B9E1ADD9E9E812D017B3129FC4B0A6D2B063D0B5EAC281A0B91B04FB1F25D1B4C35701654D7B67B1041D1BCF82E63166F480379B2C22DCE31F50554E0BF9B817F9C1B07340BB54385689D3C78F412674C9B1354CC05CB03A5708D51EB9B597716C1DBB4A42CE8E3089'
   USING 'orcl'
 
 
  CREATE DATABASE LINK "AA5"
   CONNECT TO "OGG1" IDENTIFIED BY VALUES '06BA16CF75CF21FA683544FBB18E8FDC01BE754AA4DFA90CFB605658172AF45FB7CD9B01BF898872DA0CAC950EFF38D65BFC3A4EEB08286422C6DBC680C5503D3A371217ADA11AB5724A1C4E0E69080C659ED064D89BB784F7267174E526F975DCCD92116A3E37807DB2711241240392FAA5174505A8E6FA60445495A73C3B8F804'
   USING '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.65)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = orcl )
)
)'
 
 
  CREATE DATABASE LINK "TEST1"
   CONNECT TO "TRAVEL" IDENTIFIED BY VALUES '06307628FF3A73A9C177ED8D3E190256FCBED62E1EC3DD10847F3230BECF08C9298C6C1BC4ABF16E6A3843133008C4A1622CA2463929A98EE88F1829573454067B6F1861101DAA4049AAD974855562FC410CE5A0F3A2E91F6F945E88288AC0E66FA298D7570BF5A1CE70D522F6E53E07C12237112FC4BB723E4AA0CDA3A825DF'
   USING '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.56.65)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME =orcl)
)
)'

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原文地址：get_db_link_scripts, 感谢原作者分享。