Oracle Database 11g Release 2. Please also tag oracle for search purposes.

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Asynchronous batch commits in Oracle

We have an Oracle Database data warehouse that averages 120 commits per second (according to AWR). The top wait activity is log file sync, which is to be expected... For now, overall response times ...
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Archive Logs filling up Flash Recovery Area (FRA) space

I got hired to fill a position of DBA that I wasn't quite ready to fill, and while the training is getting me there, I am running close to a potential issue. My oracle 11g database's Flash Recovery ...
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Permissions needed to call DBMS_DATAPUMP from within package

I am attempting to write a procedure (within a package) that calls DBMS_DATAPUMP to copy an existing schema into a different schema. The code works when executed from an anonymous block, but from a ...
3
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1answer
791 views

Wait time differences in Oracle

I'm trying to track the different wait time classes for current Oracle sessions but I must be misunderstanding something. When I compare the sum(time_waited)/1000 for a given session in gv$...
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Why does the query cost change so much and how to prevent it

The query causing me the issue is too big, but the piece that seems to be the core is quite simple, I will try to go with that: The query has an structure like: SELECT ... a lot of stuff ... ...
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1answer
450 views

Log rotation of diag logs?

In on of our Oracle 11.2.0 installations the directory database\diag\rdbms\$DB\$DB\alert is filled with hundreds of xml files (log.xml, log1.xml ...). Can Oracle be configured to do log rotation there?...
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601 views

Oracle 11, incremental backup goes wrong

Got a pretty big instance on a one-week backup cycle with an incremental (differential) strategy .. or rather, that's what it was supposed to be. Somehow the daily differentials seem to come out as ...
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2answers
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Oracle extents - How can I have so few with this large size?

Note on duplication: This is not a duplicate of "Oracle extents - How can I have so many with this small size?" This is a separate question I entered which happens to be in the same domain. This is ...
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2answers
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Create unique DB_NAME and DB_DOMAIN for an Oracle 11g instance

I am somewhat confused by these terms in the init.ora file: db_domain db_name instance_name plus the database name which is provided to the create database command. I do not completely understand ...
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1answer
10k views

Oracle 11g hunting down the deadlock, maybe foreign key?

I am trying to understand why a deadlock occurs in my database. The trace tells me that two updates on the same table are locking. In table is the first table to be written to in an transaction, only ...
3
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1answer
73 views

Drop 15 days records in monthly partition

I have created a monthly partition on my table like below: PARTITION BY RANGE (PARTITION_KEY) INTERVAL(NUMTOYMINTERVAL(1, 'MONTH')) ( PARTITION MayPartition VALUES LESS THAN (TO_DATE('...
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1answer
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Running / Accumulative Sum with Reset - Oracle

I am trying to accumulate a sum, but the sum accumulated cannot be positive. So far i got the following: Select t.caccserno,t.Reportingmonthyear,t.Amount,t.cycleage from temp_UnpaidInterest t ...
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Function Based Index with XPATH extractValue

// Oracle Version 11.2.0.4 Standard Edition // OS RedHat I am trying to create a function index on a large table, based on using an XML object. So I have done stuff such as: CREATE INDEX ...
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572 views

How to maintain a global index on a large table undergoing regular partition purges?

Problem I've got giant table haystack weighing in at nearly 3 TB, partitioned by month (date) and subpartitioned by client. I need to create a global index that spans all clients to facilitate ...
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1answer
318 views

What is the use of Archivelogs?

Hi I am new to Oracle Database . Using Oracle 11g R2 I want to know the purpose of archive logs created at archive log destination, how they are helpful in database backup. Suppose I am having ...
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527 views

Nested table as condition prevents using index

The following query joining a subquery does a TABLE ACCESS FULL when the master-table uses nested table as condition. When the condition is a simple =, the same query does an INDEX RANGE SCAN as ...
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3answers
5k views

How can I select rows from a hierarchical query with the lowest level?

I have a hierarchical query in Oracle 11gR2 that returns something like this: Parent (Level 1) Child (Level 2) Grandchild (Level 3) Child (Level 2) Grandchild (Level 3) Grandchild (Level 3) ...
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4answers
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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 ...
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1answer
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best way to create multiple similar tables - CTAS vs INSERT

I am creating a few dozen tables as CREATE TABLE AS SELECT (CTAS). The only difference in the SELECT statements is specifying a different value in the WHERE clause for TEAM_ID. I'm an Oracle newbie ...
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1answer
6k 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 (...
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2answers
263 views

Periodic Oracle restarts…intentionally

Taking on a new dba role for an Oracle 11gR2 2 node RAC, I've been told that about 9 times a year, in schedule with other software releases, we intentionally shutdown and restart the database. It ...
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How to store single result in variable and reuse it in a query (Oracle)?

I have a query like SELECT id FROM xyz WHERE ...; which has a more or less complex WHERE clause and returns exactly one row with one column (ID). I need this ID for several later queries in a ...
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1answer
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Objects in v$bh but not dba_objects

The Oracle documentation has a section in the 11.2 Performance Tuning Guide with the title Determining Which Segments Have Many Buffers in the Pool. The section lists the following query: SELECT o....
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Oracle 11gR2 expdp table converted to CSV from Linux

With Oracle expdp, I can export the tables I want with expdp INCLUDE=TABLE:table1,table2,table3 I need a way to convert this into CSV on a linux machine. I've seen Windows tools but don't know ...
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Oracle11.2g post-installation problem on Oracle Linux kernel

[question copied from stackoverflow] After installation of Oracle 11.2g in silent mode on the Oracle Linux kernel, I have the following error: [u01/app/oracle/product/11/bin] $ sqlplus sqlplus ...
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Installing 10g client next to 11g database on same computer

I have Oracle 11.2.0.1.0 installed on Windows 7 64 bit I want to import data from warehouse which has Oracle 10.2.0.4.0 installed. When I try to import impdp usr/pass@WAREHOUSE TABLES=TABLE ...
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loss of all redologs scenario

I'm having this question regarding a restore scenario in RMAN: A database is running in Archivelog mode. Full RMAN hot backups are taken, redologs are backed up with RMAN to tape. The application ...
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1answer
285 views

Re-import packages in Oracle

I'm aware of options to re-import data to tables using table_exists_action and can give options like skip,append or replace for the data. But is there an option to re-import packages (re-create) into ...
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1answer
297 views

Oracle Data Pump Import with running advanced replication

In our system we have a running advanced replication between two databases(11g release 2) and want to use pump import to import a backup on one site. However the imported data is not replicated to the ...
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1answer
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Why is add timestamp column with default not null so slow in Oracle 11g?

In Oracle I need to add a new column with type timestamp with time zone to a large table (80 million rows). I cannot have more than 30 - 60 seconds of downtime when I run it in production. This ...
3
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1answer
128 views

connection issue / Oracle Express 11g in windows7 32bit

I have an issue with Oracle Express 11g in windows7 32bit. Everytime when I try to conncet to the database I get this error message. How can I fix it please!
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672 views

Oracle Datapump: modify fully qualified objects when cloning a schema

I am confronted with a problem for which I have not found an elegant solution: I need to clone a schema within the same database, so I use datapump's remap_schema import parameter. The problem is ...
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60 views

INDEX on a table where I'm only filtering on a row_number()

I've got the following table (scaled down to a MWE): Fiddle here. CREATE TABLE weekly ( yearnum int, weeknum int, location varchar2(5), weekly_count int, weekly_sum int); INSERT INTO weekly ...
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when to use embedded PL/SQL gateway with Oracle APEX?

Oracle Application Express (APEX) requires one of the following three options for an HTTP server: (1) Oracle HTTP Server (with mod_plsql), (2) Oracle Application Express Listener, or (3) an embedded ...
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1answer
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Unable to create a tablespace, unusual error

I'm having difficulty creating tablespaces with Oracle 11gR2 on a fiber attached disk array. Permissions are correct and there is ample space available. I can create tablespaces on other mounts that ...
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632 views

Is there a way to allow a proxy connection to use passed authentication in a public database link?

I think the answer to this is no, but I could be wrong. If nothing else it might be nice for others to be aware of this limitation of proxy connections.
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Fast restore of dropped partitions

I want to test the restore of erroneously dropped partitions of a subpartitioned table. This restore would consist of three steps: restore the database (or at least the necessary tablespaces) to the ...
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plsql procedure gets invalidated

procedure involving dblinks gets invalidated regularly .we need to recompile every time.How to find what is causing the problem in my case procedure p1()--resides in db1 is begin .... select col1 ...
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FileWatcher Troubleshooting Options

I have setup a Credential/Procedure/Program/File Watcher/Job to monitor a folder for new files, but it is not working. I am trying to figure out what I can check to troubleshoot why this isn't ...
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1answer
848 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 ...
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Oracle high Paging Faults

What are the reasons that lead to terrible high Paging faults. The following is the topas information and background about the Environment. OS: AIX 6.1 Softwares: Oracle 11gR2 Paging Space:30720 ...
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1answer
7k views

Add an additional listener to Oracle Database Appliance

After deployment of Oracle Database Appliance with OAK 2.3.0 the standard listeners are configured for the public network on bond0. That includes SCAN listeners and one VIP listener per node. This ...
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ORA-01017: invalid username/password; logon denied

I've come across the abnormal situation, and can't understand what happens. I am connecting databases using PL/SQL Developer 8.0.4.1514(I've also tried v7,but same) . Sometimes(When I am trying to ...
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2answers
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Oracle imp crashes without error

I have Oracle 10g XE database locally. I export schema with something like exp %USER%/%PASSWD%@XE statistics=NONE owner=%USER% file=dump.dmp Exp is 10.2.0.1.0 version - so is the DB. Than I take ...
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3answers
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Increase Oracle buffer cache gets slower

So we're contemplating increasing our Oracle 11gR2 buffer cache. They said they tried it in the past and things appeared to get worse - so they undid the change. They, however, have no idea why ...
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1answer
987 views

Where can I find a syntax reference for Oracle SQL Developer's “Generate DB Doc” function?

Oracle SQL Developer (I'm using v3.2) has a feature called "DB Doc", which generates documentation for database objects. I mostly want to use it to generate documentation for my stored procedures, ...
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How to determine if an Oracle table is locked or not?

We've been using BI software and a repository database that are installed on Oracle Enterprise 11gR2. Some of these batch reports will try to access a database table which may still be locked. How ...
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How does a database use the SYS schema even when we change the password?

From the thread What is the difference between sys and system accounts in Oracle databases?, I understand that sys schema is supposed to be used only by the database. But still an administrator can ...
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1answer
953 views

Flashback feature in Oracle 11g?

I am using Oracle 11gR1. As a part of a project, I have to execute multiple update statements by disabling a few constraints (triggers and check constraints) which could result in a corrupted database....
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1answer
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Installing Oracle 11g XE on Ubuntu 12.04

I have spent the last 6 hours trying to install Oracle 11g on Ubuntu. Obviously, I'm not the only one who has struggled with this, as there is a lot of (often misleading) "documentation" online on how ...