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1answer
134 views

Oracle SQL, how to access latest queries and their data

I have SQL Developer, + Oracle client 11g. I wrote a program (MFC Visual C++) that read and writes data to a certain table. usually i put logs in the project so I could see what I ...
4
votes
1answer
2k views

Network design considerations for Oracle Database Appliance

With the introduction of Oracle Engineered Systems the DBA is moved somewhat closer to infrastructure design decisions, and expected to at least have some opinions of the network design requirements ...
3
votes
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 ...
7
votes
4answers
22k views

Why use explicit cursors instead of regular loops?

I've been writing basic web apps for a year (for an Oracle db), and since the functions are pretty simple, most of us stick with regular FOR loops to get our data: for i in (select * from STUDENTS) ...
3
votes
1answer
970 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, ...
0
votes
1answer
4k views

ORA-39083: Object type INDEX_STATISTICS failed to create with error

I am trying to restore Oracle DB from a backup taken recently. While restoring I got the following error: Failing sql is: DECLARE I_N VARCHAR2(60); I_O VARCHAR2(60); NV VARCHAR2(1); c ...
1
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1answer
180 views

Getting the page name from a web URL in Oracle

I have a list of page URL's in my database table under the column heading URL. There are many different prefixes on each page name for example: Test1/Admin/Page7.asp Test1/One/Page3.asp ...
1
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2answers
12k views

Trigger to automatically add values to a table in Oracle

I am new to Oracle. I am looking for a trigger which helps to automatically insert values into a table when data is entered into another table in the same database. I have tried a lot and didn't ...
2
votes
2answers
14k views

Why an object became invalid in oracle databse.

There are some invalid views and functions in my database. I am not sure what changes caused these objects to became invalid since many people are working on the same database. How can I see which ...
2
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1answer
807 views

Oracle 10 to 11: charset issue

I was redirected from SE's root site to this one. I'm not a DBA, so I shouldn't be doing this, but I have to, so I apologize beforehand to all of you DBAs that will read this post: I'm migrating an ...
2
votes
2answers
1k views

Tablespace and userid info

I have to create some scripts to create a new and empty DB ready for a new install of our apps on a new server. I am easily getting the tables, views etc info from SQL Developers Export facility ...
7
votes
1answer
33k views

Importing schema to new or different tablespace

Is there a convenient way to import a schema into Oracle 11gR2 using a single new or different tablespace than where the data originated? As an example, I have exported BLOG_DATA from OLDDB, where ...
0
votes
3answers
3k views

ORA-01562: failed to extend rollback segment number 11

I´m trying to execute this query into a SP DELETE FROM table SC WHERE SC.evaluationMonth= 'Some month'; COMMIT; But for this month there are something like 10 million records. So I get the ...
1
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1answer
20k views

Oracle: Output not shown even if SERVEROUTPUT variable set to ON [closed]

I was wondering why the output is not being shown even if I set the SERVEROUPUT variable to ON. I have the following annonymous block code: DECLARE v_rec_count number:=0; BEGIN for rec in ...
5
votes
1answer
5k views

how to use dual foreign key in oracle 10g

I have created two tables create table ref1(id varchar2(3) primary key); create table ref2(id varchar2(3) primary key); Now I want to create a third table with a single column as foreign key for ...
1
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1answer
197 views

Why create an “oracle” user for installing Oracle 10g or 11g?

What is the specific reason for creating the oracle user to install Oracle 10g or 11g, even though root exists and can be used? Is it possible to install as root by adding root to the oinstall group? ...
0
votes
1answer
63 views

How to add the aliases to the group by clause

In the below query how to add the aliases assignedTOiti, assignedTOasstAdm, assignedTOhlp, closedDate to the group by clause. I am struggling for the past few hours. SELECT ieor.aper07_req_k ...
1
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1answer
717 views

Restoring Oracle prod backup to test server with new database name

I need to restore an Oracle production database (aaprod) to a test server that already is home to a test database (aatest) under a new name (bbtest). I have a cold backup of the production database ...
-1
votes
0answers
445 views

Synchronising SQL tables in two locations [closed]

We have a bit of a conundrum at the moment. ANSI SQL solutions please. We have two databases located at two different geographic locations and will be using the web for all traffic between the two ...
1
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0answers
773 views

How can one reliably update a LOB column with data from another LOB column in Oracle?

I have tried: UPDATE "SCHEMA".TABLE SET LOB_COLUMN = (SELECT LOB_COLUMN FROM "SCHEMA".TABLE) I have tried: CREATE OR REPLACE PROCEDURE COPY_LOB_DATA IS OLD_BLOB BLOB; NEW_BLOB BLOB; ...
2
votes
1answer
48 views

Convert Log table days in a state

This is simplified but represents the problem I am trying to solve. We have a table containing 5-10 million rows in a format similar to the following... Input Table Date Item Moved to Box Oct-1 ...
1
vote
1answer
1k views

Oracle 11g: Part Copy of Production data to Development Environment

I have a Production database with the current size involving two principale schemas: SQL> SELECT SUM(bytes)/1024/1024/1025 "Size in GB" FROM dba_segments where owner in ('SCHEMA1','SCHEMA2'); ...
6
votes
2answers
5k views

How do I query to pull all data in row based MIN and MAX service date?

I'm very new to Oracle SQL especially in the Pentaho report builder. It lets you do some things and block others. PL/SQL is not available so I must do this in a query. I need to be able to pull ...
5
votes
1answer
6k views

Export table without BLOB column

I have a big table with BLOB objects and some references from other tables to this one. I prepare dev and test schema for my app by making expdp (data pump) from production, then anonymizing data on ...
12
votes
1answer
3k views

Commit vs Fast Commit vs Commit Cleanout in Oracle Database

I was wondering whether someone could verify my understanding regarding the differences between those 3 terms as pertaining to Oracle Databases. Many sources confuse these terms and do not explain ...
0
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1answer
2k views

Getting error when using Oracle imp command to import dmp file

I am importing a dmp file using the following command: imp user/pass file=file.dmp log=logfile.log full=y ignore=y destroy=y I get the following errors: . . importing table ...
1
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1answer
65 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 ...
7
votes
1answer
164 views

Cardinality is so far off from reality

I've got a table where the cardinality for plans just seems waaaaaay too high - despite updating stats and even trying dynamic sampling for Oracle 11gR2. select count(*) from table1 where col1 = ...
2
votes
1answer
4k views

How do I export data from Oracle 11.1 to 10.1?

I have a 11.1 oracle server and I need to export a dump file for a client who has a 10.1 server. While reading the documentation, I figured out I needed the 10.1 Export Utility. I searched the ...
3
votes
3answers
856 views

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 ... ...
15
votes
2answers
89k 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 ...
3
votes
2answers
843 views

Pivoting data for stacked charts (grouping and creating new columns for each distinct value)?

I have something that looks like this (SQL Fiddle here): Date Location Value 1/1/2012 Baltimore 36 1/1/2012 Houston 36 1/1/2012 Chicago 55 2/1/2012 Baltimore 49 ...
1
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1answer
98 views

What is the best relationship model for high performance?

I want to model a relationship between Customer and Transaction. However, because Customer is only described by a unique string and no extra info, I have two possibilities to implement it in the ...
1
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1answer
798 views

What are the things need to be considered while creating tablespace?

I am creating temporary/permanent tablespace on Oracle. As I am going to create an application that is transactional there will be traffic. I bumped into concept called tablespace in oracle. What kind ...
8
votes
2answers
366 views

How to modify an update in Oracle so it performs faster?

I have this query: UPDATE ( SELECT h.valid_through_dt, h.LAST_UPDATE_TMSTMP FROM ETL_FEE_SCH_TMP d, FEE_SCHEDULE_HISTORICAL h WHERE h.FUND_ID = d.FUND_ID AND ...
1
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0answers
346 views

Oracle server session terminated by fatal error

I have an Oracle server running on Windows Server. When an INSERT statement runs I receive an Oracle Ora-00603 error. The insert statement just tries to insert a BLOB into a table. I searched the ...
5
votes
1answer
1k views

Trying to copy a schema using impdp

I'm trying to copy a SCHEMA in its entirity using oracle's IMPDP tool. I've setup a database link back to itself and the link works fine. Then I'm running this: impdp username/password@instancename ...
3
votes
2answers
2k views

Oracle supported linux distributions

According to this site (http://www.dbspecialists.com/oracle11glinux.html), Oracle is only supported on the following Linux distributions: Oracle Enterprise Linux Red Hat SUSE Asianux Is there any ...
3
votes
3answers
10k views

What are the real life cases for using Oracle advanced queuing?

What are the cases when Oracle advanced queuing is the preferred mechanism for implementing functional requirements? For example, money transfer from bank account A to bank account B might ...
1
vote
2answers
3k views

Moving data from Oracle to SQL Server : Table size optimization

I am loading data using SSIS from Oracle to an SQL Server database. One table I moved had a size of 4 MB under Oracle but when loaded to SQL Server, the size grows to 7.96 MB! I analyzed the size ...
2
votes
2answers
20k views

How to take Oracle backup and restore?

I am coming from SQL Server background where SQL Server studio has a very easy way of taking database backup and then doing a restore. I have been using Oracle 11G express edition for past couple of ...
2
votes
2answers
20k views

How do I discover the Oracle Express workspace name?

Is there a way to discover the WORKSPACE name if I've forgotten it? I cannot login to the APEX admin console since I've forgotten what the workspace name was. I do know the SYSTEM user password. ...
2
votes
1answer
169 views

Use of hash functions in group by?

I'd use a listagg() to generate a list of components a certain customer has and compare it to another list generated the same way somewhere else to detect inconsistencies. The problem is that ...
5
votes
1answer
3k views

When dedicated server process model should be used instead of shared process model?

It looks like Oracle shared server process model is better than dedicated server process model. In a shared server configuration, client user processes connect to a dispatcher and it can support ...
1
vote
3answers
159 views

Query missing one date; only happened today

This should be pretty reproducible I hope. I'm on Oracle 11g. This query, which I use as part of another query, is acting strangely: SELECT TRUNC(SYSDATE - ROWNUM) DATEITEM ...
3
votes
1answer
738 views

Oracle sequence generation performance during persists of large data sets

In the context of an Oracle sequence, when persisting > 200 million records, is there a performance hit on the database if the sequence cache is the default value of 10000? That is to say does ...
6
votes
4answers
2k views

How to document Oracle database?

I'm new to Oracle databases. I have used to SQL Server and the description fields (MS_Description) for tables and columns for documentation purposes. Is there an equivalent for Oracle? What is the ...
1
vote
1answer
11k views

How to make stored procedure with outputs OUT sys_refcursor, OUT varchar2, and OUT number, then use in c#.net app

What is the syntax for a stored procedure that outputs a refcursor, a varchar2, and a number? I would like to output all three in the result, for the purpose of displaying count, and a message which ...
1
vote
2answers
30k views

Listener refused the connection with following error: ORA-12505, TNS: listener does not currently know of SID given in connect descriptor

I am a newbie to oracle database. I am trying to make a connection but I receive the following error: Listener refused the connection with following error: ORA-12505, TNS: listener does not ...
3
votes
0answers
958 views

Why does Oracle hang on “ALTER TABLE ADD … NOT NULL”?

Using Oracle Database 10g Enterprise Edition Release 10.2.0.1.0, the operations below have completely stumped me. The first locks up (table has DDL lock, finally killed query after 20+ minute wait). ...