Using database link in my triggers,urgent
There's DB A on ServerA,DB B on ServerB.Table TA in ServerA's DB and TB on ServerB's DB.My purpose is to synchronize usera.TA with userb.TB real time.
In order to realize it,I created dblink AtoB from A to B using command "create database link AtoB.domain connect to userb identified by userb using 'BTNSname';",it's no problem for I have test on it :select count(*) from [email protected];It's ok to get the result.
But when I create trigger on table TA by using the dblink AtoB.domain to update,delete and insert datas to TB,the error "PLS-00201: identifier '[email protected]' must be declared" occurs while compiling.
The oracle version on the two servers is 8.1.7.
It happens on the production envrionment,but in our lab,there's no problem.The difference between them is that it is cluster structure in production one.
I tried several times,but failed,just wondered if some privilege was not right?But I can do selection from this dblink,only in trigger there's compilation errors.
Really hope that someone could give light on it.
Thank you in advance!
In addition,I did some modification in my triggers to have a try.
I created a synonym for the remote table,and the trigger then updates the synonym instead of the remote table [email protected] .But also failed.
The same error,saying the synonym is not declared.
Any good way to realize the same thing?
Thank you for your answering first.
I don't use replication because the destination table's structure is not exactly the same as the source one.
--The selection was done in the production,connection to the source schema,then select through the dblink from the source to the dest schema,the trigger is created in source schema on source table to handle datas in destination schema's table.In lab,all is ok,no such a problem.
--I created two dblinks,one is connect to source as system user,created a public dblink "create public database link AtoB.domain using 'BTNSname';";the other is connect as UserA,"create database link AtoB.domain connect to UserB identified by UserB using 'BTNSname';".
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In documentation is stated to resolve such an error to
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Hi,
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PURPOSE
How to execute a remote procedure in Portal using Database Link.
DESCRIPTION
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==================
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SQL>
SQL> create table gurnish.indexes20plus ( n1 number, n2 number, n3 number, n4 number, n5 number, n6 number, n7 number,
2 n8 number, n9 number, n10 number, n11 number, n12 number, n13 number, n14 number, n15 number, n16 number,
3 n17 number, n18 number, n19 number, n20 number, n21 number, n22 number, n23 number, n24 number,
4 n25 number, n26 number, n28 number);
create index xin1 on indexes20plus (n1);
Table created.
SQL> SQL> create index xin2 on indexes20plus (n2);
create index xin3 on indexes20plus (n3);
Index created.
SQL> SQL>
Index created.
SQL> SQL> create index xin4 on indexes20plus (n4);
Index created.
SQL> SQL>
Index created.
SQL> SQL> create index xin5 on indexes20plus (n5);
create index xin6 on indexes20plus (n6);
Index created.
SQL> SQL>
Index created.
SQL> SQL> create index xin7 on indexes20plus (n7);
Index created.
SQL> SQL> create index xin8 on indexes20plus (n8);
Index created.
SQL> SQL> create index xin9 on indexes20plus (n9);
Index created.
SQL>
SQL> create index xin10 on indexes20plus (n10);
Index created.
SQL> SQL> create index xin11 on indexes20plus (n11);
create index xin12 on indexes20plus (n12);
create index xin13 on indexes20plus (n13);
Index created.
SQL> SQL>
Index created.
SQL> SQL>
Index created.
SQL> SQL> create index xin14 on indexes20plus (n14);
Index created.
SQL> SQL> create index xin15 on indexes20plus (n15);
Index created.
SQL>
SQL> create index xin16 on indexes20plus (n16);
Index created.
SQL>
SQL> create index xin17 on indexes20plus (n17);
Index created.
SQL> SQL> create index xin18 on indexes20plus (n18);
Index created.
SQL> SQL> create index xin19 on indexes20plus (n19);
Index created.
SQL> SQL> create index xin20 on indexes20plus (n20);
Index created.
SQL> SQL> create index xin21 on indexes20plus (n21);
Index created.
declare
i number;
begin
for i in 1..100
loop
dbms_random.seed(i+100);
insert into indexes20plus values (dbms_random.value(1,5),dbms_random.value(1,21),dbms_random.RANDOM, dbms_random.RANDOM,dbms_random.value(1,20),
dbms_random.value(1,4),dbms_random.value(1,6), dbms_random.value(1,7),dbms_random.value(1,9),dbms_random.value(1,10),
dbms_random.value(1,11),dbms_random.value(1,12),dbms_random.value(1,13),dbms_random.value(1,14),dbms_random.value(1,1),
dbms_random.value(1,1),dbms_random.value(1,19),dbms_random.value(1,122),dbms_random.value(1,20),dbms_random.value(1,20)
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,dbms_random.value(4,20),dbms_random.value(4,20));
end loop;
commit;
end;
SQL> set autotrace traceonly
SQL> l
1* select * from gurnish.indexes20plus@lvoprds where n1 = 4
SQL> /
no rows selected
Execution Plan
Plan hash value: 441368878
| Id | Operation | Name | Rows | Bytes | Cost (%CPU
)| Time | Inst |
| 0 | SELECT STATEMENT REMOTE | | 1 | 351 | 1 (0
)| 00:00:01 | |
| 1 | TABLE ACCESS BY INDEX ROWID| INDEXES20PLUS | 1 | 351 | 1 (0
)| 00:00:01 | LVPRD |
|* 2 | INDEX RANGE SCAN | XIN1 | 1 | | 1 (0
)| 00:00:01 | LVPRD |
Predicate Information (identified by operation id):
2 - access("A1"."N1"=4)
Note
- fully remote statement
- dynamic sampling used for this statement
Statistics
0 recursive calls
0 db block gets
0 consistent gets
0 physical reads
0 redo size
1897 bytes sent via SQL*Net to client
481 bytes received via SQL*Net from client
1 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
0 rows processed
SQL> select * from gurnish.indexes20plus@lvoprds where n21 = 4;
no rows selected
Execution Plan
Plan hash value: 2929530649
| Id | Operation | Name | Rows | Bytes | Cost (%CPU
)| Time | Inst |
| 0 | SELECT STATEMENT REMOTE | | 1 | 351 | 1 (0
)| 00:00:01 | |
| 1 | TABLE ACCESS BY INDEX ROWID| INDEXES20PLUS | 1 | 351 | 1 (0
)| 00:00:01 | LVPRD |
|* 2 | INDEX RANGE SCAN | XIN21 | 1 | | 1 (0
)| 00:00:01 | LVPRD |
Predicate Information (identified by operation id):
2 - access("A1"."N21"=4)
Note
- fully remote statement
- dynamic sampling used for this statement
Statistics
1 recursive calls
0 db block gets
0 consistent gets
0 physical reads
0 redo size
1897 bytes sent via SQL*Net to client
481 bytes received via SQL*Net from client
1 SQL*Net roundtrips to/from client
0 sorts (memory)
0 sorts (disk)
0 rows processed
SQL> -
How can i get data from another database SQL Server use database link from
I have a database link from Oracle connect to SQL Server database with user cdit connect default database NorthWind.How can I get data from another database(this database in this SQL Server use this database link)?
hi,
u should see following documentation:
Oracle9i Heterogeneous Connectivity Administrator's Guide
Release 1 (9.0.1)
Part Number A88789_01
in it u just go to chapter no. 4 (using the gateway),,u'll find ur answer there.
regards
umar -
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1st) Oracle 9i ( Server1 )
2nd) Oracle 10g ( Server2 )
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I written a piece of code which will be executed in Forms 6i and is connected to Server1.
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Unable to access remote database object using database link
Hi all,
I have created a database link to a remote server
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Now connected to database B :
INSERT INTO abc_hesids
( abc_key,
hesid,
date_added,
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dob,
sex,
newnhsno,
homeadd,
procode3,
lopatid
SELECT 'X',
0,
sysdate,
sysdate,
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HES_Common.f_string_field('X', 5),
HES_Common.f_string_field('X', 6)
FROM dual
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HES_Common.f_string_field('X', 1),
ERROR at line 18:
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SQL>
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Action: Issue ALTER SESSION SET GLOBAL_NAMES = TRUE if possible. -
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Hi To Every One
I have two oracle database oracle 7.3.4.0.1 and oracle 9i 9.2.0.1.0.
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Problem:
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IDENTIFIED BY <PASSWORD> USING 'ORACLE7';
OR
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IDENTIFIED BY <PASSWORD> USING 'ORACLE7';
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I RECEIVE A ORACLE ERROR LIKE
ORA-12663 SERVICE REQUIRED BY CLIENT IS NOT AVAILABLE ON THE SERVER.
OR IF MY COMMAND IS LIKE
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I RECEIVE AN ORACLE ERROR LIKE
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ORA-02063: preceding line from ORACLE7
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IT WORKS FINE.
PLZ HELP ME WHAT IS THE PROBLEM THAT THE LINK FOR ORACLE 7 IS NOT WORKING WHEN
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Timeout when using database link connecting to a remote database
Hi,
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When I try the opposite, that is, establish a database link on the database in A pointing to the one in B I cannot get it work. I can create the database link but then when I try to use it (e.g., by submitting a "SELECT") it blocks for a long time and finally returns "ORA-12535: TNS:operation timed out". I tried to execute telnet from A to B using the port of the Oracle database server in B and it seems that the connection is established. I tried something similar with tnsping but this does not work, as I get again the timeout. I tried deactivating the firewall on my computer B, but it does not work either (besides, the telnet passes through even if I have the firewall activated).
Any idea?
My TNSPING looks like this:
tnsping '(DESCRIPTION =
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I also tried with:
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I'm lost... Any ideas are very much appreciated.
Thanks!From A to B and from B to A can you ping ... post the output surrounded by tags for formatting.
Do the same thing for TNSPING.
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Hi all,
I have problems in using the following created database link:
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User: fzanalyze
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Host: fz.domain.com
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select * from tab@fzanalyze;
FEHLER in Zeile 1:
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connected
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DanaDana,
Unlike Kamal, I don't use SQLNET anymore (isn't it obsolete from 8i+?), so I don't have any sqlnet.ora on my client or server.
I'm not really a sysop, so no clever thoughts behind the following ideas, I just use these for development purposes at home:
IP range at home = 192.168.x.x segment (another router server connects to the internet)
Oracle server computer name = dbserver.seinpost.nl (local address = 192.168.1.110)
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(SID_DESC =
(GLOBAL_DBNAME = inst04.seinpost.nl)
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(SID_NAME = inst04)
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INST04.SEINPOST.NL =
(DESCRIPTION =
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INST04 =
(DESCRIPTION =
(ADDRESS_LIST =
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(HOST = 192.168.1.110)
(PORT = 1521)
(CONNECT_DATA =
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Using database links in a plsql page process
I am trying to use a database link in a pl/sql page process.
It works fine when I use the link name in the plsql like this:
BEGIN
SELECT
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from [email protected];
But the link name will be coming from a page item (P12_DBLINK) populated as follows:
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I have tried the following and it's not working:
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l_link VARCHAR2(30);
BEGIN
l_link := :P12_DBLINK;
SELECT
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Any suggestions are most appreciated.
thanks,
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check the following example to use the execute immediate statement for your purpose
sql - Variable for Database Link Name - Stack Overflow
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