本文介绍如何使用 SQL 语句创建一个公共数据库链接，并通过该链接进行数据插入操作。示例中详细展示了创建链接所需的连接信息及插入数据的具体语法。
CREATE PUBLIC DATABASE LINK linktest CONNECT TO som IDENTIFIED BY som USING '(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.38.95.230)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME =testdb)
)
)'
insert into dm_fielddict (Fieldname,Fieldtype,Fieldlen,Numfloat)
SELECT Fieldname,Fieldtype,Fieldlen,Numfloat FROM dm_fielddict@linktest
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 10.38.95.230)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME =testdb)
)
)'
insert into dm_fielddict (Fieldname,Fieldtype,Fieldlen,Numfloat)
SELECT Fieldname,Fieldtype,Fieldlen,Numfloat FROM dm_fielddict@linktest
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