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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Queries hang when accessing Oracle via ODBC and Python

I have Python scripts running on a Windows 2003 server that access an Oracle 11g database in the US via VPN. I am in the UK. We have recently moved offices and upgraded our broadband speed. Some of ...
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3answers
207 views

Connect to sql plus from command line using connection string

Let's say I have a Oracle database. I have a username = x, password = y, database = z. Also I know the port = a, SID = b, Hostname = c. So how do I need to connect correctly? I used many options ...
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1answer
36 views

Oracle RMAN Incremental update or merge questions

1- Does Oracle RMAN support Incremental Update/Merge option for device type SBT ? Or its only supported for Disk ? 2 - During an update/merge operation during the incremental backup, does RMAN write ...
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1answer
73 views

Oracle Enterprise Manager - Where do I find the error logs?

I'm not familiar with oracle management. The problem is when I try to connect to the enterprise manager through the Web browser I get this error: In english: "Internal Error has occurred. Check ...
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0answers
42 views

How to ensure on Oracle RAC One Node that the OWB control service is started on the active node after a planned relocate or unexpected fail-over? [closed]

I followed the document 'How To Install a Warehouse Builder 11g Repository on a RAC' (Doc ID 1571166.1) to set up the OWB repository (11.2.0.4) on my Oracle RAC One Node system. Because it's a RAC One ...
2
votes
1answer
7k views

Difference between database dump (export) and database backup?

What is the drawback using only EXP or EXPDP command for a database dump (and considering it as a backup) instead of taking backups using BACKUP DATABASE command (via RMAN)? What is a difference ...
2
votes
1answer
289 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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votes
2answers
18k views

How is the default tablespace determined when creating a table?

The Tablespace parameter is optional when creating tables. Upon execution of a CREATE TABLE statement, Oracle assigns the default one if it was not defined. In the default database there is a ...
0
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1answer
41 views

Tablespace of an index organized table

I want to find the tablespace of an index organized table with primary key. With dba_segments I can only find the tablespace for the primary key. But how can I find the tablespace for the table?
2
votes
2answers
795 views

Loading XML documents to Oracle 11g DB with control file

I am using Oracle 11g XML database and trying to load XML documents to this DB with a control file and the sqlldr utility. All these XML files have an element that contains a date string with time ...
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1answer
54 views

Error exp oracle XE on centos

i have a problem when i try to export ... Connected to: Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production Export done in WE8MSWIN1252 character set and AL16UTF16 NCHAR ...
1
vote
1answer
898 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 ...
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2answers
4k views

Message file not found when starting SQLPlus

I've installed Oracle XE 11.2 on Fedora 18 but have trouble starting SQLPlus. It quits with the following error: Error 6 initializing SQL*Plus SP2-0667: Message file sp1<lang>.msb not found ...
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 ...
0
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3answers
58 views

Oracle Export using EXPDP gives ORA-06512 SYS.UTL_FILE error on Windows 7

I am using Oracle 11g and want to export a table using below statement C:\>expdp SYS/sys@MYDATABASE DIRECTORY = Mydir DUMPFILE = Customer.dmp LOGFILE = Customer.log TABLES = PERSON.CUSTOMER ...
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0answers
30 views

Package body created with compilation errors [closed]

I run it in sql*plus but always get this message: Warning: Package created with compilation errors. CREATE OR REPLACE PACKAGE BODY Admission_pkg IS ID_Var Tbl_Dept_Info.Dept_Id%type; ...
0
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1answer
40 views

Type with nested table in oracle

I want to create a type with a nested table. I have a table called assignment_tbl which I want to put a type assignment_status. This assignment_status contains primitive types but also contains a ...
0
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2answers
60 views

How do I tell the actual IOPS used by Oracle?

This is hopefully a simple question. We have a large DB deployment that we need to scale up over the next year. For scaling we have been relying on our vendor, but recent developments have caused us ...
1
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1answer
61 views

Oracle RAC concept

This might be a dump question, but I've been reading so much different things, that I'm not sure anymore. I tried to understand the concept of the Oracle RAC, so I've been reading the datasheet form ...
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 ...
0
votes
1answer
198 views

Oracle installation fails due to ORA-00443

I hope that you help me to resolve my problem. I'm trying to install Oracle 11g on RHEL 6. All prerequisites are ok, but I'm getting such error during step "Creating and starting Oracle instance". The ...
0
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2answers
64 views

Difference Between SELECT and select in oracle sql

The algorithm used to find SQL in the library cache is based on the ASCII values of the characters that make up the statement. Means The SELECT instead of select statement will be parsed again ...
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2answers
42 views

Dynamic permissions

I have a application that creates tables in one user's schema and another user needs to be able to use the dynamically created tables. Example: Application creates User1.RandomTable User2 needs ...
0
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1answer
691 views

ORA-00338: log # of thread # is more recent than control file

We are facing the following error on our production database: ORA-00338: log # of thread # is more recent than control file The database crashed and there was no recovery action. What could I ...
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: ...
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3answers
57 views

Remove ORA-01100:DATABASE ALREADY MOUNTED

I am using Oracle 11g and there is a database create during installation name "xyz" and user "xyz".Now i created a user 'abc' and gave following permission to abc. "CREATE SESSION, ALTER SESSION, ...
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1answer
96 views

Save and restore specific tables

in an Oracle 11.2 Database, Enterprise Edition, we are running calculations divided into 3 different "modules". These modules can be started on their own, but not parallel, so in between users are ...
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0answers
23 views

Specifying Oracle Service Name in UNIX Profile

Is there any way we can specify Oracle Service Name in UNIX Profile? I know that there is an environment variable ORACLE_SID for specifying SID in the Profile, But how about service name? If there ...
0
votes
1answer
23 views

Java-Hibernate-Oracle: Can a fluctuating DB connection duplicate insert statement?

  Is it possible that a fluctuating DB connection causes insert statement to execute multiple times? Thanks
2
votes
2answers
84 views

SQL query for next occurrence of specific date

I am working on a function for our database that contains contract data. Each contract expires on a certain date, and then each contract has an expiration type that determines what happens after that ...
0
votes
2answers
2k views

exporting oracle tables on command line as sql files

I use exp and expdp to export database tables on command line but it generates binary .dmp files. I want to export/import tables as .sql* files on command line like pl/sql developer app can do. Is ...
0
votes
1answer
459 views

Difference between oracle database desktop and server class

I installed oracle database 11g enterprise edition to my laptop. When i was installing oracle, at the beginning i selected Desktop Class (not server class) option. Now i am trying to make remote ...
2
votes
1answer
337 views

Is it possible to use 'restore UNTIL SCN' with rman and Oracle 9i in NOCATALOG mode?

I'm trying to do a hot backup with rman that I can copy to a USB drive so I can recover it on a new server. The backup was done two days ago and the restore database command was working on the same ...
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0answers
26 views

Oracle service names with a minus sign (?)

Are there any reasons not to use minus signs/dashes/hyphens in Oracle service names? DBMS_SERVICE, tnsping and sqlplus seem to be fine, but the documentation says no. We are switching from Oracle ...
2
votes
2answers
2k views

Oracle 11g: “With Clause” very slow

I have written a query utilizing Oracle's with clause. I have identified one particular with clause in a larger query to be really, really slow. Here are three versions of the same query, they all ...
7
votes
1answer
269 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 ...
1
vote
2answers
31 views

Aggregating on a repeated group

In a current report, I'm trying to track the migration of a person from department n, to n+1, or to n+k. My data is split into a row per term (university data). An example: dept | term ...
0
votes
1answer
37 views

Oracle Recovery

Oracle server died. Built a new VM and mapped out the volumes to the SAN. Installed the same version of Oracle on the new server and applied the same patches. How can I "register" or "attached" the ...
0
votes
1answer
27 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 ...
1
vote
2answers
19 views

Update row where associated row does not exist

Given the table named ROLE: role_id[PK] NUMBER role_name VARCHAR2 Using only SQL (no PL/SQL) how would I write a MERGE (or UPDATE?) statement that would update the role_name as below, but only ...
2
votes
2answers
787 views

Oracle 11g R2 - same query sometimes fast, sometimes slow

I have a simple update query on a table with about 100 rows in it: UPDATE RESULTS_DATA SET IMAGE_BLOB=:myBlob WHERE MEASUREMENT_INDEX=:mIndex AND BATCH_ID=:batchId AND SYSTEM_ID=:sysId ...
0
votes
0answers
37 views

question on oracle query performance/tuning

we have a query with large union all with a lot of tables. If that query gets hung up, it will hold up alter statements on those tables we should break the query up into individual ones to minimize ...
0
votes
2answers
36 views

Getting error while running dbca command as oracle user on linux, please help me on this

could someone please help me on the below error to get ride of it: [oracle@localhost ~]$ dbca UnsatisfiedLinkError exception loading native library: njni11 java.lang.UnsatisfiedLinkError: ...
4
votes
1answer
219 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 ...
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". ...
2
votes
2answers
3k views

How to move the ownership/copy a table from one user to another?

I've been tasked with doing some tidying of our database. I'm not a DBA expert so here I am. (We don't have a DBA expert either). We have a user Old_User and another user New_User. Old_User owns a ...
0
votes
1answer
61 views

How to know DB user?

I do use PL-SQL developer tool. I used to log in by using Prodcollops as user name to access database. May I know whether my DB user is same as prodcollops or it just a log in name?
0
votes
1answer
174 views

Mistake during Oracle 11g PITR

I tried using set time until.. and mis-typed the date. Can anyone help me understand how to get my backups into a manageable state? After the accidental recover, most of my backupset disappeared. I ...
1
vote
2answers
109 views

Oracle 11.2 using too few memory

it is about one year that I have changed my server from Oracle 10g to 11.2g (and also changed the hardware and Windows from 2003R2 to 2012). The problem is that with more than doubled cpu power, ...
1
vote
1answer
99 views

Why is this second query more expensive than the first?

While reading Graph Databases book, I came across this excerpt: I can't figure out why the second query is more expensive than the first. Indeed, both filter on the Bob person. May anyone ...