如下所述,我想在另一个数据库中远程创建一条记录,当我将c1更改为插入查询中的某个字符串时,该记录将起作用,但是当我使用c1对象时,它将按照标题出现错误。
[请注意:它在没有@的同一远程上运行良好,并且使用c1对象,尝试了其他解决方案,但无济于事,有人可以通过此dbms_lob的脚本来帮助我。并将其远程插入另一个远程数据库]
set define off;
Declare
c1 clob default ' ';
begin
dbms_lob.append(c1,chr(10));dbms_lob.append(c1,q'[DOCTYPE]');
Insert into SYSTEM_CONFIG@rtfqa (CONFIG_ID,NAME,VALUE_OLD,TYPE,SUB_TYPE,FROM_SYSTEM,TO_SYSTEM,VALUE) values ((select max(config_id)+1 from SYSTEM_CONFIG@rtfqa),'CONTRACT_HASHTAG_EN',null,'system','system',null,null,c1);
end;
ERROR
Insert into SYSTEM_CONFIG@rtfqa (CONFIG_ID,NAME,VALUE_OLD,TYPE,SUB_TYPE,FROM_SYSTEM,TO_SYSTEM,VALUE) values ((select max(config_id)+1 from SYSTEM_CONFIG@rtfqa),'CONTRACT_HASHTAG_EN',null,'system','system',null,null,c1);
end;
>Error report -
>ORA-06550: line 7, column 148:
>PL/SQL: ORA-22992: cannot use LOB locators selected from remote tables
>ORA-06550: line 7, column 1:
>PL/SQL: SQL Statement ignored
>06550. 00000 - "line %s, column %s:\n%s"
>*Cause: Usually a PL/SQL compilation error.
>*Action:
sql developer 18.2.0
DB = Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
使用分布式LOB时有各种限制。解决此问题的一种方法是对本地LOB全局临时表进行如下操作:
global temporary table
insert@remote as select from gtt
复制数据看起来像:
create table t (
c1 int, c2 clob
);
create global temporary table gtt as
select * from t
where 1 = 0;
declare
v2 clob default ' ';
begin
dbms_lob.append (
v2,
chr (10)
);
dbms_lob.append (
v2,
q'[DOCTYPE]'
);
insert into gtt (
c1, c2
) values (
1, v2
);
insert into t@loopback
select * from gtt;
end;
/
select * from t;
C1 C2
1
DOCTYPE
Loopback是指向相同数据库以模拟远程数据库的数据库链接。