SQL & PL/SQL :: Refer A Table In Different Schema - Avoid Database Links
Jul 23, 2013is there any way to refer a table which is in different schema other than using DB links.
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SQL & PL/SQL :: Inserting 300 Million Records Into Oracle Table Using Database Links?
Dec 19, 2011I would like to know if we can insert 300 million records into an oracle table using a database link. The target table is inproduction and the source table is in development on different servers.The target table will be empty and have its indexes disabled before the insert. if this can be accomplished in less than 1 hour.
View 26 Replies View RelatedHow To Avoid Table Data To Physical Standby Database
Jun 28, 2013Our client requirement is to avoid table data to physical standby database.
View 3 Replies View RelatedApplication Express :: How To Refer Image From Table In Organization Chart
Mar 30, 2013I am using org chart plugin to show the employee hierarchy, the plug-in is downloaded from
[URL]........
Current i uploaded the employee photo's in images under shared components -> files and referring in my query like below its working fine, but My question is how to refer employee photo's from table.
SELECT TO_CHAR (emp.empno) AS primary_key,
TO_CHAR (emp.mgr) AS parent_key,
emp.ename
|| '<div>
<img width="100px" src="wwv_flow_file_mgr.get_file?p_security_group_id='
|| :WORKSPACE_ID
[code]...........
Retrieve Info From Multiple Databases / Insert Into Central Database Via Database LINKS
Jun 10, 2013I am trying to retrieve info from multiple DBs and insert into a central DB via DB LINKS.The links are retrieved via a cursor.
However I keep coming up against 'PL/SQL: ORA-00942: table or view does not exist'..how to handle db_links using a cursor in a pl/sql block? The code is as follows:
DECLARE
db_link_rec VARCHAR2(30);
CURSOR db_link_cur IS
SELECT DB_LINK
from MESSAGING_PROD_LIST;
BEGIN
OPEN db_link_cur;
LOOP
FETCH db_link_cur INTO db_link_rec;
EXIT when db_link_cur%NOTFOUND;
[code]....
Server Utilities :: Import A Schema From One Database Schema To Another Schema B?
Aug 10, 2010I want to import a schema from one database schema to another schema b from db STBTST to STATST and from schema CMSSTAGINGB to CMSSTAGINGA
I first want to test this to my own schema (mvanmannekes) CMSSTAGINGA is filled at the moment.
So i've created a dump from STBTST-CMSTAGINGB For importing im using this statement:
impdp mvanmannekes/password schemas=cmsstagingb remap_tablespace=cmsliveb_data:cmslivea_data
remap_tablespace=cmsliveb_index:cmslivea_index
remap_schema=cmsstagingb:mvanmannekes directory=expdp_dir dumpfile=cmstagingb.dmp
I'm getting this:
Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Master table "MVANMANNEKES"."SYS_IMPORT_SCHEMA_01" successfully loaded/unloaded
Starting "MVANMANNEKES"."SYS_IMPORT_SCHEMA_01": mvanmannekes/********
schemas=cmsstagingb remap_tablespace=cmsliveb_data:cmslivea_data
[code]....
ORA-02020 / Too Many Database Links In Use But OK With Where Clause
May 16, 2013I have a view called V_MEDGEN_LISTRADIO but I can't run SELECT * FROM V_MEDGEN_LISTRADIO
ORA-02020: too many database links in useThe cause is that we call in the view 5 tables over dblink and the open_links parameter is set to 4.
What is strange is that when I run this select by adding a where clause then it works!
SELECT * FROM V_MEDGEN_LISTRADIO WHERE SPRR = 3645;
(use of index so all tables are not called ?)
Server Administration :: Limitations Of Database Links
Jan 25, 2012I'm currently assessing the design/performance of a Distributed System in which hundreds of Field reps have local Oracle DBs (10.2.0.4) on laptops & have to update a remote database (11.2.0.1) via a PUBLIC database link. Field data (millions of records) collected daily is synched from the local to the remote DB & vise versa through this database link. I have 2 concerns here:
1. Is the database link the best option for such a configuration? (recently field reps have been complaining about the slowness in synchronizing data between local & remote DBs). If not, what other options are available for such processing?
2. I've read a lot about security concerns with using PUBLIC database links, but haven't seen any documents to proof they're a majority security issue. why PUBLIC database links are considered not to be very secure?
SQL & PL/SQL :: Querying Through Dynamic Database Links Using DBMS_SQL
Nov 14, 2011I am using SQL Developer.I am self-teaching myself PL/SQL. What I am trying accomplish is to run a select query across many database links at runtime and to insert that query onto a local table. So far, I have only gotten as far as querying the database link names. I am stuck at where my variable calls the database link name. It does not recognize the database link name, and I can't quite grasp the reason why. Below is the first part of my script which does retrieves the column values no problem:
001 SET SERVEROUTPUT ON
002 DECLARE
003 db_link_varVARCHAR2(30);
004 source_cursorINTEGER;
005 destination_cursorINTEGER;
006 src_csrINTEGER;
007 dst_csrINTEGER;
008 rundate_varDATE;
009 instance_name_var VARCHAR2(30);
[code]....
If I break the script down to the bare select query, it will query absolutely fine.If I run the script in its entirety, it will not pick up the variable dbl as a dynamic database link. 02019. 00000 - "connection description for remote database not found"
If I comment out line 031 and prevent the looping of querying of database links (which will only fetch the first value of db_link from dba_db_links), the script will complete and I will have a row inserted into my local table.
I am suspecting it's the looping that is incorrect but I understand it is not going to do anything beyond line 059.
Networking And Gateways :: Objects Referring To Database Links
Jul 21, 2011how to find out what are all the objects referring to particular database links in database?
View 6 Replies View RelatedNetworking And Gateways :: Find List Of Database Links?
Jul 2, 2011There is a user account called 'BALA' in my database.I want to find out the database links that uses this 'BALA' account.
View 2 Replies View RelatedSQL & PL/SQL :: Insertion Of Data From One To Other Schema Table In Same Database
Aug 9, 2011I need to insert data from one schema table to other schema's table in same database.The thing is columns are not equal.so when I am trying to use insert statement it is throwing error as not enough values. The situation is explained clearly below.The insert stmt is implemented in second schema whose table name is b.
SQL> create table a(ID_A NUMBER,Name varchar2(10),rollno NUMBER,address varchar2(10));
Table created.
SQL> insert into a(ID_A,Name,rollno,address)values(1,'ravi', 101,'hyd');
1 row created.
SQL> insert into a(ID_A,Name,rollno,address)values(2,'rav', 102,'delhi');
1 row created.
SQL> insert into a(ID_A,Name,rollno,address)values(3,'ra', 103,'chn');
1 row created.
SQL> create table b(ID NUMBER,Name varchar2(10),rollno NUMBER,address varchar2(1
0),route varchar2(10),direction varchar2(10));
Table created.
SQL> ALTER TABLE B ADD
2 CONSTRAINT B_PK1
3 PRIMARY KEY
4 (ID);
Table altered.
SQL> create sequence b_seg start with 1;
Sequence created.
SQL> insert into b select b_seg.nextval,lexcom.a.* from lexcom.a,dual;
insert into b select b_seg.nextval,lexcom.a.* from lexcom.a,dual
*
ERROR at line 1:
ORA-00947: not enough values
So,for table b in ID column sequence needed to be inserted and other columns need to be taken from table a.I can understand the error is because two tables are not having equal columns.So,the insert stmt is throwing error.
I can manually write by taking columns from a and b and write insert stmt as follows,but this is tedious process.
SQL> insert into b(ID,Name,rollno,address)select b_seg.nextval,lexcom.a.Name,lex
com.a.rollno,lexcom.a.address from lexcom.a,dual;
3 rows created.
But this is time taking and I had tables which has many columns to be inserted.So is there any other way to solve it and implement insert stmt.
Performance Tuning :: Database Links - Display Consolidated Data?
Oct 14, 2013A website requires to display consolidated data from databases located in different geographical regions (India, London and New York). The application server for the website is hosted only in one location India. What are the techniques that can be used for faster retrieval of data from all 3 databases?
Note: There is no need of real time data retrieval from different regions; however the user should able to view the updated data at predefined intervals.
Networking And Gateways :: Authentication For Connected User Database Links
Jun 15, 2013I know how to use database links in various forms, but I've been trying to think through how the authentication works for a connected user link in 11g. If I create the link like this,
create public database link using 'orcl';
then any user can use the link, provided they have an identical username/password in the two databases. With pre-11g passwords, it was understandable: the password was salted with the username, so the hash of the password would be the same in both databases, and I assumed that the logon through the link used some sort of IDENTIFIED BY VALUES mechanism. But in 11g, the salt will different in the two databases. So the hash will be different. And of course Oracle never stores the actual password. So I don't see how the authentication works.
Security :: Authentication For Connected User Database Links (release 11.x)
Jun 16, 2013I know how to use database links in various forms, but I've been trying to think through how the authentication works for a connected user link in 11g. If I create the link like this,create public database link using 'orcl';then any user can use the link, provided they have an identical username/password in the two databases. With pre-11g passwords, it was understandable: the password was salted with the username, so the hash of the password would be the same in both databases, and I assumed that the logon through the link used some sort of IDENTIFIED BY VALUES mechanism. But in 11g, the salt will different in the two databases. So the hash will be different. And of course Oracle never stores the actual password. So I don't see how the authentication works.
View 4 Replies View RelatedHow To Avoid Parallel Execution In Database
Dec 5, 2012In my database is present undesirable parallelization of the query. All involved tables has degree=1,
if I right understood there is no method to avoid this except reducing of degree of indexes ? I'm using 11.2.0.3
SQL & PL/SQL :: How To Refer Result Of Inner Query (analytic Function) In Outer One
Feb 23, 2012How can I refer the result of inner query - max(t.col3) in the outer query. I tried the 'group by' but it is not performing well
select
t1.col5, t1.col6
from t1,
(select t.col1
t.col2
[code].......
Server Utilities :: How To Move Schema To Another Schema In Same Database
Jan 5, 2009move the tables with data present in the user scott(full) to another schema named test. In my case scott is in user tablespace and for test schema i have created different tablespace named test_tbs.
View 14 Replies View RelatedSequence Name In Oracle Database Schema As Well As Timesten Schema?
Jan 13, 2011How to use same oracle sequence name in Oracle Database schema as well as timesten schema?
View 1 Replies View RelatedSQL & PL/SQL :: Avoid Mutating Table Error?
May 16, 2011Best solution to avoid mutating table error?
View 11 Replies View RelatedClient Tools :: How To Create A Table In Another Schema As In Existing Schema
Apr 26, 2010I would like to create a table in another schema(CBF) as already exist in my schema(TLC) without data but related indexes,synonyms and grants should be include.
How could I do this without using export import. I am using TOAD 9.0.1.
Export/Import/SQL Loader :: Imp Records Of One Schema Into Another Schema Of Same Table
Nov 3, 2012I had done following steps,
schemas(toy,toys)
1) i open the session of toy schema
First i taken backup of table
create table bck20121103_himan as select * from himan;
Backup table is created.
After taking the Backup table
delete himan;(deleting the records)
2) i log in to another session(toys)
exp toys/toys@orcl file=20121103TOYs.DMP TABLES=(HIMAN) /* Particular table is taken*/
3) i log in to toy schema
imp toy/toy@orcl file=<dump file name> TABLES=(HIMAN) INDEXES=N IGNORE=Y
i tried the above statement it taken so much of time..
Later i tried
I log in to toy session
i rename the table with other name.
later i imported
imp toy/toy@orcl file=<dump file name> TABLES=(HIMAN) IGNORE=Y FULL=Y
it's successfully imported.
SQL & PL/SQL :: How To Avoid Duplicate Rows From Being Inserted In The Table
Dec 21, 2009I have one table in which I want to restrict some records from being inserted. I don't want to put any checked constraints. e.g. consider following table
transaction(
id number primary key,
txn_date timestamp(7),
payee varchar2(40),
amount number,
memo varchar2(40),
ref_num number
)
I want to write SQL which should not inset duplicate record.
e.g.
I have written one as bellow:
insert into transaction
select 1, to_date('2009-12-12','YYYY-MM-DD'), 'Payee1', 12, 'Test', 212 from dual where
(select count(*) from transaction where txn_date=to_date('2009-12-12','YYYY-MM-DD') and
payee='Payee1' and amount=12)=0;
Can I use exists/not exists, which query will be more appropriate. (Please consider that fields which I am using to filter out the duplicate transactions does not contain primary key.)
Can I write such SQL. Or do i check for duplicate rows one by one and then filter the duplicate records.
SQL & PL/SQL :: How To Insert Data In Multiple Bases Using Multiple Database Links
Jan 2, 2013how to insert the data in multiple bases( Same table structure in different bases) using the multiple database links?
View 4 Replies View RelatedPL/SQL :: What All Are Database Links Are Out Facing And In Facing
Jan 10, 20131. How can we find out what all are the SQL Queries/Procedures/Functions/<Oracle DB Objects> are running long time and affecting the Performance in each schema. If they affecting how to resolve it?
Here Need to Display the Queries and the method to increase the performance of the query.
2. How can we find out what all are the DB links are Out Facing and In facing? ( In Each Schema)
Convert Oracle Database (schema Data) To Postgresql Database
Oct 11, 2012i want to convert oracle database(schema data) to postgresql database
which tool would be best and url to download and steps to convert from one database to another ?
Creating Table From Existing Table In Another Schema?
Jan 4, 2009I am creating a table from another existing table in another schema. The existing table contains data. When I am using the query- create table m _voucher as select * from ipm.m_voucher,I am getting the whole data of m_voucher but I want empty m_voucher table, so what will be the query to get the empty m_voucher table?
View 4 Replies View RelatedSQL & PL/SQL :: Update A Table Using Another Schema Table Of Same Style?
Aug 14, 2011Can we update a table using another schema table of same style?
Example:
Update employees
set employee_name=hr.employees.employees_name
where employee_id=100;
SQL & PL/SQL :: Using More Than Four DB Links In A Procedure
Jul 17, 2013i want to use more than four db links in my stored procedure to retrieve data from different databases. but it says ORA-02020: too many database links are opened. i also wrote execute immediate to close some links but its not working.
View 16 Replies View RelatedReplication :: In 10G Without DB Links
May 24, 2010We have two databases A and B, both are 10g Enterprise edition and we have to replicate only one table from A to B. A is the source and B needs a read only copy. The source of A is modified by User through Oracle Forms.
A latency of 1day can be accepted though the lesser the better. The problem is that this company does not approve of DB links in any form or any tool which in the end has to create a DB link.
