Oracle Corporations version 10 of its flagship RDBMS product.

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521 views

Access Data that is stored in Primary FileGroup On SQL Server through DBLinks on Oracle

I am using dbLinks to fetch data from SQL Server 2008 to Oracle (10g)database. When I fire the command : select * from "test_table"@dbLink Oracle throws error : select * from "test_table"@dbLink ...
2
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1answer
69 views

Oracle 10g Administration

Redo log files are not multiplexed in our database. Redo log blocks are corrupted in group 2, and archiving has stopped. All the redo logs are filled and database activity is halted. Database writer ...
2
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1answer
5k views

In Oracle, if parallel_max_servers is set to be significantly less than the DOP can the explain plan be sub-optimal?

For tables that have DEGREE DEFAULT, the degree of parallelism (DOP) is calculated by Oracle using number of CPUs and number of threads per CPU amongst other things. As I understand it, when costing ...
2
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1answer
2k views

Tips for Optimizing Oracle Warehouse Builder 11.1 with Oracle DB 10.2

Are there any tips for improving performance of Control Center and Design Center in Oracle Warehouse Builder? At the client side it is very slow to open and refresh Design center and control center ...
2
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1answer
371 views

Help with Oracle Pipelined function

I have a pivot where I have a contract with tank numbers separated by ; and I've been given this example to pivot them down into rows (which works): SELECT oks_c.contract_number, ...
2
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1answer
687 views

Finding why an Oracle listener got automatically restarted

I got the following message in the <listnername>.log file. I want to find out the reason why it got automatically shutdown and restarted again with different PID. 03-MAR-2013 03:00:57 * ...
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0answers
91 views

Oracle 10g weird behaviour

We have a thick client application using an Oracle 10g database. We recently upgraded the application and in the process migrated the database tables from a latin to unicode character set. After the ...
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1answer
255 views

Size of an empty database

Continuing with my school-project, now I have to estimate the size of the database from here to 5 years. They give me a formula, so, in that formula, one of the values is the size of the empty ...
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1answer
9k views

ora-01410 invalid RowID sporadically in a select statement

I have a select that looks up some data by a join. The system runs Oracle 10.02g and the select looks like this SELECT distinct t1.crit FROM table_name1 t1 INNER JOIN table_name2 t2 ON t1.crit ...
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2answers
638 views

Oracle Databases - need to export nightly for backup/DR purposes

I know nothing about Oracle databases, so if my question's path seems odd, feel free to tell me the right way to do things. I have 2 ways I see currently that I can backup a server running 3 Oracle ...
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2answers
85 views

Change all datatypes in a table

I'm migrating a database and i need to change the "container", i don't exactly how to name it. I give an example to keep it clear : old base: VARCHAR2(20 BYTE) new base: VARCHAR2(20 CHAR) I can ...
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2answers
292 views

Join on clustered tables shows greater cost than non-clustered tables?

I have created a cluster and have two tables emp and sep on the cluster. When I do the simple query... explain plan select * from emp_cluster join dep_cluster using (dno) the cost is 26. I ...
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2answers
6k views

What is the difference between Schema and Database in Oracle?

In oracle, Datafile are system files where actual data is stored.The collection to datafile make Tablespace and atlast database is collection of tablespaces Correct me if I am wrong on the concepts ...
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1answer
1k views

What are the criteria for a sql staying in the V$SQLAREA?

I needed to pick up details from a SQL result but 5 minutes after running the SQL it was no longer under v$sql and V$sqlarea. What are the criteria for Oracle to keep the query in those views?
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1answer
3k views

How do I determine if FORCE LOGGING is on for the entire database?

How can I determine if force logging is on, at the database level. (Not asking about finding out if force logging is on for particular tablespaces.) What rights are needed to perform the check of the ...
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2answers
816 views

Analyzing an Oracle dump

I have a full Oracle dump, I know I have to imp the dump with the fromuser touser clause. However, I don't know the names of the schemas included in the dump. How can I open the dump created with ...
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1answer
6k views

Cleaning Oracle In-Active Sessions

There a are huge number of in-active sessions persisting in our database.How can we clean these in-active sessions? Database - Oracle 10g R2 with ASM DB Size - 5TB SGA - 78GB PGA - 10GB Maximum ...
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2answers
59 views

query to concatenate columns if record duplicate

My table has two column that is id and name. I want to do concatenate the columns if the if more than two names are same like: id ...
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1answer
62 views

Generate rows based on value in 2 columns. Bug?

I have the following table in Oracle: ID START END _ID01 AB050 AB100 _ID01 AB101 AB150 _ID02 AB0251 AB0300 _ID01 AB00301 AB00302 I want to generate as many rows and every ...
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1answer
346 views

How to find out the segment behind a corrupted block when the database cannot be opened?

Short Version: alter database open fails with ORA-00600. alert.log and dbv both point out that one data block (type: 6) is corrupted. I cannot select from dba_extents as that requires an opened ...
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1answer
441 views

oracle database upgrade issue

Currently i'm using Oracle 10g XE database and want to upgrade to Oracle 11g XE. When i try to run the installer, it fails because of running instance. I searched the internet and got to know i have ...
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1answer
794 views

How to improve the performance of this select query?

I have two tables: TABLE1 and TABLE2. And I am running this select query to fetch the data. It takes long time to run: SELECT TABLE1.* , TABLE2.COL1 , TABLE2.COL4 FROM TABLE1, TABLE2 WHERE ...
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1answer
550 views

Drop table without its dependencies and solve block corruption

I have found alert about corrupted block in alert log. Corrupted block belonged to the table named DOCS. Because of I don't have any backup of this database, decided to recreate DOCS table to solve ...
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2answers
178 views

Strange Oracle ORDER BY

I have a problem sorting strings in french : This is my query : SELECT LIBELLE as LibelleCourant, CODE as code FROM S_MARQST ORDER BY LibelleCourant; And this is the result LIBELLECOURANT ...
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1answer
375 views

Slow join behaviour with 'or' in predicate

I'm faced with a situation which I can't understand and overcome. In short we have left-join query like: select from a left join b on a.key1=b.key1 or a.key1=b.key2 This works VERY slowly, while ...
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1answer
56 views

What type of files are C-9999-yyyymmdd-00 in Oracle

At my {ORACLE_HOME}\database I found like 3GB of this type of files: I think they are not backup of controlfile because size of files changes over time.
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696 views

Would existing constraints and indexes applied to an old table, apply to a new table renamed like the old one after it's dropped?

everything is in the question. I have a table named tableA on which we have indexes and foreign keys and constraints. I have to modify content in a column called column1. This being a production ...
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1answer
3k views

ORA-12541: TNS:no listener using EXPDP

I need to export an Oracle 11g database to an Oracle 10g instance. I have the command, which I believe is correct: expdp user/pass@192.168.10.8 full=Y VERSION=10.2 directory=m_dump ...
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2answers
4k views

oracle 10G forms connection with Oracle database 10G Enterprise Edition in windows 7

I am trying to connect Oracle Forms 10g version (9.0.4) to the Oracle 10G Enterprise Edition. At first I tried to connect to the db without setting the "Local Net Service Name Configuration" in ...
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1answer
532 views

This refactoring from cursor on a dblink'ed Oracle table OK?

The data is being compared from the local version of the table to one in the contracts linked server. I'm not certain what the goal of this code is in the first place, but I'm trying to get a handle ...
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1answer
664 views

Enterprise Manager Database Control on host with an underscore in it's name

I know it sounds awkward, but Enterprise Manager is refusing to be set up because of an underscore in the server name: C:\>emca -deconfig dbcontrol db -repos drop STARTED EMCA um 30.05.2012 ...
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1answer
782 views

ORA-07445: An unexpected error: core dump

We use oracle 10g. We found the following error in a trace file: *** 2012-05-07 11:50:56.421 ksedmp: internal or fatal error ORA-07445: An unexpected error: core dump [ACCESS_VIOLATION] ...
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1answer
6k views

restore database from dmp file

I have a situation: I have a dmp file and a database with old data server crashed and the latest data we have ar in the dmp file! we managed to pull the server back but it has old data! so we need to ...
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1answer
5k views

Materialized view taking too much time

i create a materialized view fast refresh. it takes almost 45 min to create but it did not refresh in 24 hours. i tried it on with index and without index. i check the log of all table max record in ...
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1answer
556 views

Oracle Backup and Recovery

My backed up archivelog file format is 'al_%U'. During recovery it shows the following error: RMAN-06054: media recovery requesting unknown log: thread 1 seq 17 lowscn 671075 How to determine which ...
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1answer
68 views

Modify LISTAGG query for 10g

below mentioned code for cursor works only in Oracle 11g, as LISTAGG() function introduced starting version 11g. I need to adapt this code for Oracle 10g. Any help would be appreciated. SELECT ...
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2answers
119 views

SQLPlus : default define settings

My workstation is Ubuntu 14.04. I have Oracle Express 11g installed. Whenever i run the define command in SQLPlus, is see the define _editor = "ed". Is there a way to change that permanently to gedit ...
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1answer
257 views

Finding parameter names for binding stored procedure parameters

For unit testing purposes I am attempting to call the DBMS_OUTPUT.PUT_LINE procedure from c# using parameters that are bound by name. Since this DBMS_OUTPUT package seems to be a standard on Oracle ...
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1answer
2k views

Object changed during datapump

If some object is being changed when data pump is run how will that object go into datapump file?
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1answer
469 views

Oracle temporary table usage with XA

I'm confused about the compatibility of Oracle XA with global temporary tables. I've read several places on the internet and in the oracle documentation that say "Distributed transactions are not ...
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1answer
80 views

Import (imp) not showing final report stats/results

I'm trying to execute an import of a dmp file an not obtaining the final results of the import. It's really weird because i obtained really big files (nohup.out and imp_xxx.log) with the following ...
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1answer
593 views

Oracle OS Authentication only works on certain databases/clients

We currently face a problem where Oracle OS authentication only works on certain client/server combinations. The environment consists of a development client with its own database server (excluded ...
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1answer
155 views

Does Oracle 10g Express Edition have enough storage? [closed]

I am going to develop a simple library database with less than 10 tables. Each table would only keep text records. The library has about 10,000 volumes of books and about 2,000 members. Would the ...
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1answer
71 views

Oracle 10 column name resolution

For example (just to illustrate the problem), CREATE TABLE test_join(ID INT NOT NULL); --1 SELECT ID FROM test_join A INNER JOIN test_join b ON 1=1; --2 SELECT ID FROM test_join A INNER JOIN ...
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2answers
483 views

Get a number nth bit value in oracle

How can I get nth bit value in oracle database? I am currently using this query: WITH a AS (SELECT 7 val FROM DUAL) SELECT CASE BITAND (a.val, POWER (2, n-1)) WHEN 0 ...
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1answer
71 views

map user in oracle 10g

here is the scenario: There are two schema created in oracle 10g, say db 1 and db 2. db1 can be accessed by username : sys with password and db2 can be accessed by username : test with password. ...
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1answer
975 views

Materialized view log not updating

Under what conditions would a materialized view log not update? I must be missing something. I've got a 10gR2 database. I can create the following MV logs: CREATE MATERIALIZED VIEW LOG ON linked_t1 ...
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1answer
63 views

Supporting Multiple Oracle Clients

I have an application where the data repository is moving to Oracle 11g. This means we need the new Oracle 11g client on the application server to support the retrieval of their data. Is it ...
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1answer
593 views

Find who will change a record in oracle DB

Someone is updating a record in a custom Oracle table, is there a way to find who is updating the record and or at least the table?
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1answer
550 views

Using a sequence created in the same script in Oracle

SQL Server developer working on Oracle so apologies in advance if I'm fundamentally coming at this incorrectly from an Oracle perspective. I've got a script I've written which: Checks ALL_SEQUENCES ...