Oracle is a RDBMS (Relational Database Management System) created by Oracle Corporation. It supports a large number of languages and application development frameworks. Its primary languages are SQL, PL/SQL and Java. Also included is support for C (Pro*C, OCI and EXTPROC), C++ (OCCI) and Java (JDBC) ...

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264 views

Designing Simple Schema for Disaggregation of Demand Forecast

I am doing a simple database design task as a training exercise where I have to come up with a basic schema design for the following case: I have a parent-child hierarchy of products (example, Raw ...
5
votes
1answer
618 views

What is the meaning of “select * from relational(owner.table)”?

We recently got some errors in our alert log of the form 301598: Tue Jul 16 03:58:29 2013 301599: ORA-01555 caused by SQL statement below 301600: SELECT * FROM ...
4
votes
1answer
48 views

Changes access method for non-correlated subquery

Oracle 11g R2 Unfortunately our application has per row security "features". We have a query that looks about like this: Bad, slow: SELECT someRow, someOtherRow FROM bigTableA a WHERE EXISTS ( ...
4
votes
1answer
218 views

Is Oracle's dbms_utility.get_hash_value algorithm documented do reverse engineered anywhere?

I'm working with an existing database where passwords are hashed like this: DBMS_UTILITY.GET_HASH_VALUE(the_username || the_password, 1000000000, 1073741824) I know that this is bad for various ...
4
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1answer
431 views

Ports necessary for Oracle 11g Replication across a firewall?

We have two Oracle 11g Enterprise Edition servers that need to replicate data via Oracle streams. However, the two servers are on untrusted domains and connect via a VPN. On end of the connection is ...
3
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1answer
407 views

How to separate out individual sql statements from Oracle SQL script for execution from java code

I have Oracle DB 11g Enterprise Edition and I want to execute sql script from my java code. I am reading this sql script from a .sql file and the script contains statements such as create table, ...
3
votes
1answer
225 views

Security for Oracle linked server from SQL Server

I'm trying to make the linked server from SQL Server 2005 to Oracle more secure by not having user/pass on "Be made using this security context:" fields so only a specific user can access the data ...
3
votes
1answer
689 views

How do I execute an Oracle SQL script without sqlplus hanging on me?

For an automated task I would very much like to run some SQL scripts and make sure that sqlplus does not hang under any circumstancees, i.e.: If the script contains any named substitution variable ...
3
votes
1answer
507 views

Oracle: How to gather stats in a logical standby database?

I have a Primary and a (logical) Standby Database. The Schema 'APP' gets synced. Now a User has performance issues running a query against some tables in this 'APP' schema of the Standby Database. On ...
3
votes
1answer
1k views

Why ORA-00932: Inconsistent Types error?

Sorry for the meaningless title, but I couldn't think up a better one. I'm using Oracle 11g r2. The following query raise ORA-00932 error: SELECT BBB.FIELD1 FROM TABLE0 AAA JOIN (SELECT * FROM ...
3
votes
1answer
288 views

ASM diskgroup drop from another ASM instance

I have created long time back one ASM RAC setup and I created one diskgroup with some name say xyz. I think that instance is gone but the diskgroup was not dropped exclusively using command: drop ...
2
votes
1answer
65 views

Oracle database startup fails several times. Giving ksvcreate

Last night my production server database (ORACLE 10.2.04) was showing me number of connection exceeded as some times it show me. Then as usual I shut down abort my database then at the time database ...
2
votes
1answer
58 views

constraint in oracle

I'm trying modeling things like this using oracle: An account can have 1~5 members So I'll have a account table and a member table with a FK of account. But is that possible to check if the account ...
2
votes
1answer
173 views

How oracle Oracle Database 10g used index?

I have table “result”, DDL : CREATE TABLE result (id_graduate NUMBER NOT NULL, id_sml NUMBER NOT NULL, last_update DATE NOT ...
2
votes
1answer
357 views

How do I identify the remote db agent name to use in create_database_destination on Oracle 11gR2?

I am trying to setup DBMS_SCHEDULER in Oracle 11g to run a remote database job. I have a remote Oracle 11g R2 database on unix and a local one on Windows. I read that you can install the oracle ...
2
votes
1answer
286 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 * ...
2
votes
1answer
380 views

ORA-16000 when trying to perform select on read only Oracle database

My application's SQL encounters an ORA-16000 error when trying to access a read only Oracle database. ORA-16000: database open for read-only access ORA-06512: at "SYS.XMLTYPE", line 272 ORA-06512: ...
2
votes
1answer
402 views

Unable to start Oracle Database Server : Get an error as I try to start it

I just installed Oracle Database Express Edition 11g Release 2 for windows.It created a short cut icon on the desktop : but as I click this icon I see this dialog box : What is it ? How do I ...
1
vote
1answer
42 views

How to export a MySQLtable with a longBLOB column to an Oracle database?

In MySQL I have a table: Select * from Dummy; Columns like below: id name salary binary_col 1 a 100 A.pdf 2 b 200 b.pdf 3 c 300 c.pdf 4 d 400 d.pdf 5 e 500 e.pdf ...
1
vote
1answer
42 views

Mutating Error , How to solve it

CREATE OR REPLACE TRIGGER LOAN_RP AFTER INSERT OR UPDATE ON FUND_DISBURSE REFERENCING NEW AS NEW OLD AS OLD FOR EACH ROW DECLARE V_FA FUND_DISBURSE.FUND_AMT%TYPE; V_RC NUMBER (10); ...
1
vote
1answer
46 views

Running a query over the network multiple times seems to choke performance, how can I pinpoint the problem?

Background: Oracle 11g running on Windows 2003 x64 SP2 on a 3.06GHz Xeon X5675 with 16GB RAM Over the past 3 weeks, a query I used to run approximately every 5 minutes has started to respond very ...
1
vote
1answer
275 views

Oracle service “lsnrctl” are missing (not present) after the installation of 32bits Oracle client

I cleaned up my computer for all old Oracle stuff using Uninstall (OUI) and then later used regedit to deleted all references to Oracle and deleted all remains off Oracle directories. I have HP ...
1
vote
1answer
45 views

Oracle Compatible Parameter to set

Is there any difference in setting the Compatible Parameter to 11.2.0.0 vs 11.2.0.4 ? Are there any advantages / dis-advantages ?
1
vote
1answer
119 views

Oracle 11g installation stuck at installation

I'm trying to install oracle 11g on fedora by following this tutorial but it stuck after I click Next in step 8. The screen does not go away even after several hours. There's no log file in ...
1
vote
1answer
102 views

How do I delete a file that has been locked by UTL_FILE?

I wrote a flakey PL/SQL script that crashed out and forgot to close the file handle (type UTL_FILE.file_type). Now I can't delete the file. Short of restarting the instance or rebooting the box, is ...
1
vote
1answer
139 views

How to use the dbms_sql to get the analyze for insert into statement

declare v_cursor number; stmt varchar2(2000); s varchar2(40); cursor cc1 is select voc.SQL_ID from v$open_cursor voc left join v$sql vs on voc.SQL_ID=vs.SQL_ID where voc.SID in(select sid from ...
1
vote
1answer
183 views

Internal query on CDEF$ and CON$ very CPU bound

I am checking an application (Infor ERP LN) that loads a lot of data into an oracle 10.2 database. While checking one of the user sessions with SQL_TRACE and its output with tkprof, I found that the ...
1
vote
1answer
168 views

ORACLE error while dbstart command

I'm trying to start up Oracle DB with startup command. But error occurred while startup. dbstart[80]: test: argument expected Failed to auto-start Oracle Net Listene using /bin/tnslsnr touch: ...
1
vote
1answer
524 views

Oracle 10g: Optimizing an update query that uses a subquery

I have the following query within a stored procedure, and I've been trying to improve its performance to no avail. UPDATE TBL_REPORTING REP SET (REP.ISSUER_ID, REP.ISSUER_NAME ) = ( ...
1
vote
1answer
147 views

One Materialized Views in Two Refresh Groups

I have five materialized views that I want to refresh in two occasions, every Sunday and at the 1st of every month. I created a Refresh Group for the weekly and that works fine. But when I tried to ...
1
vote
1answer
887 views

Duplicate database for standby returns error ORA-19625: error identifying file /home/oracle/stdbyctrl.ctl

I'm working on creating duplication scripts for standby purposes. and it's constantly failing even though the backups are located in the exact same folder. DB structure is identical and spfile is ...
1
vote
1answer
176 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, ...
1
vote
1answer
682 views

Fixing wildcard expansion resulting in too many terms error (DRG-51030)

How can I resolve the wildcard_maxterm problem in Oracle 10g? My index creation syntax is: begin ctx_ddl.drop_preference('SUBSTRING_PREF'); end; / begin ...
1
vote
1answer
613 views

How to disable oracle's MAX_ENABLED_ROLES limit

How to disable oracle's MAX_ENABLED_ROLES limit or expand the value of limitation. [oracle 10g (win32)]
1
vote
1answer
2k views

Arabic characters not displaying in oracle database

We have a Oracle database 8.1.7 running for many years on Win-2000. We wanted to move the database on a newer machine running Win 2003. I did the following I made a cold backup of old database. ...
0
votes
1answer
9 views

different outcome based on function execution method

I am mainlining a legacy system and realize that the answer to this may take a deeper explanation of the code but before I go that far I wanted to make sure the solution wasn't something more simple. ...
0
votes
1answer
16 views

On reboot listeners don't start but restarting the service after will start them

when I reboot ubuntu the listener service comes up but it doesn't seem to have any listeners lsnrctl status LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 24-JUL-2014 15:34:43 Copyright (c) ...
0
votes
1answer
23 views

How to construct a set-based query for subset problem?

I have a DB of the following structure (picture shows simplified version) How should I construct a query to get only those recipees, that can be cooked, i.e. for each ingredient in a receipe ...
0
votes
1answer
24 views

Copying a table in SQL Server database to Oracle database

I am new to database management. I need to copy a particular table "Attendance" in SQL Server database to Oracle database. There is no connection between the two databases. Also, "Attendance" is ...
0
votes
1answer
30 views

Output another word instead of the word in the table in a query

Suppose I have a table where I have a field which can have to values: "enabled" and "disabled". Suppose want my query to output "unblocked" instead of "enabled" and "blocked" instead of "disabled". ...
0
votes
1answer
25 views

Migrating stored procedure from Sybase to Oracle having temporary tables

I am migrating a few stored procedures from Sybase to Oracle using Oracle Developer tool. The tool migrates alomost 70%-80% of the stored procedures except a few cases where there is a temporary table ...
0
votes
1answer
25 views

Oracle 11g not allowing to connect to. Error ORA-01122: database file 1 failed verification check

I am running Oracle 11g on Windows 7 Enterprise SP2 16 GB RAM, 1 TB HD. I can connect to Oracle using SQL Plus (see below), C:>sqlplus sys/xxxxxxxxx@XE as sysdba SQL*Plus: Release 11.2.0.1.0 ...
0
votes
1answer
40 views

Cannot remotely connect to oracle express

I have installed Oracle Express in a oracle-6.5-x64 virtual machine (let's called it host). The installation went fine, I am able to connect and run commands using SQLPlus from the host. Now I'm ...
0
votes
1answer
40 views

ORA : 12519 No appropriate Service Handler

Sorry if my question has already been asked many times but I spent two days trying to solve it. I have a machine in which I had an Oracle database. Everything was working propertly until I added two ...
0
votes
1answer
32 views

Oracle: Replace corrupted first datafile

A datafile associated with a tablespace has been corrupted (got truncated to size 0). I don't mind losing the data, because I have a full DB dump which I can import. Now I want to replace this ...
0
votes
1answer
23 views

What is the “other miscellaneous information” in the Shared Global Area (oracle database)?

I'm studying Oracle database ,and it says here that the SGA contains these data structures : Database buffer cache Redo log buffer Shared pool Java pool Large pool (optional) Data dictionary cache ...
0
votes
1answer
39 views

Restore an oracle dmp file

I've been given an oracle DMP file that was created on a solaris system which I need to restore to a windows system. I've created the DB with the correct blocksize, but when I try and do the restore ...
-1
votes
0answers
51 views

Insufficient space at Installing Oracle 11g in fedora

I am using Fedora in Oracle VirtualBox.I have allocated full memory at time of installing iso of fedora in it.Now i have oracle-xe-11.2.0-1.0.x86_64.rpm. I am installing it in fedora. But i m phasing ...
-1
votes
0answers
91 views

How different is Oracle 12c from Oracle 11g or 10g

I am currently administrating a few applications that run on Oracle. In my field of work it is beneficial to understand both how to setup, admin and develop for Oracle as they are generally smaller ...
-2
votes
0answers
16 views

Alterations in views

Following is the code for sample table I have created: SQL> create table a (a1 number(2), a2 number(2) not null); Table created. Now suppose I create a view on this table as: SQL> create ...