Tagged Questions

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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1answer
26 views

where is the oracle 12c logfile?

I am getting all of the following error first ORA-12162: TNS:net service name is incorrectly specified when I export the ORACLE_SID , I get the following connected to an idle instance and I can ...
1
vote
1answer
44 views

Password of the oracle user in oracle linux?

I am trying to install oracle 12c on my virtualbox oracle linux 6.5. I ran the command oracle-rdbms-server-12cR1-preinstall , which created a user oracle . But I can't seem to login to the user cause ...
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2answers
47 views

composite index vs normal index

I need to index some tables and for that i found that there are different kinds of indexing. I am kind of clueless on their proper place of usage. Should i create index on all the fields that want ...
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0answers
41 views

Performance degradation after partioning tables using DBMS_REDEFINITION package

We have created partitions on per-existing tables in my application using DBMS_REDEFINITION package. just for the sake of improving performance. Now , We are facing an issue in the performance ...
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0answers
16 views

Need help on renaming clusters and tables within a cluster - Oracle

clusters is something totally new to me (my knowledge is limited to knowing the technical definition of a cluster!) I need to import additional data into my DB, and that data is also cluster based. ...
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3answers
75 views

Replacing the results of a row

I'm working with Microsoft Reporting Services 2008. In our database, we have a small group of confidential students that need to be taken into account for several queries. If they are a confidential ...
0
votes
1answer
60 views

how can I insert a long string into a blob using an insert statement?

ORA-06502: PL/SQL: numeric or value error: raw variable length too long ORA-06512: at "SYS.UTL_RAW", line 224 the datatype is BLOB here's my insert statement insert into system_value (type, ...
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2answers
34 views

Oracle remote OS authentication, security risks with domain users

What security risks can be with domain users? create user "OPS$KA\USERNAME" identified externally. grant create session to "OPS$KA\MARIK"; Then MARIK that is in KA domain, can logon to the ...
1
vote
1answer
28 views

Run stored procedures from specific package/with specific tag at lower priority

I have this requirement to run "Maintainance Jobs" for a web application. These jobs will just call a stored procedure from a set of specific packages. Running these jobs can consume quite a bit of ...
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0answers
60 views

DBMS_CRYPTO - ORA-06521 PL/SQL: Error mapping function

PACKAGE: user/password -- SYSTEM/SYSTEM CREATE OR REPLACE PACKAGE enc_dec AS FUNCTION encrypt (p_plainText VARCHAR2) RETURN RAW DETERMINISTIC; FUNCTION decrypt (p_encryptedText RAW) RETURN ...
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0answers
16 views

How to join 2 tables and traverse up hierarchy at the same time

Any help that can be given on a current problem I'm having in an Oracle environment would be greatly appreciated. I have 2 tables. One contains jobs to be performed on pieces of equipment, the other ...
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0answers
23 views

Row level security and full text searching

How do you approach the problem of resolving access permissions when matching tens of thousands of users with tens of millions of documents containing unstructured data? How do you even build and ...
0
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1answer
37 views

Oracle Text CTXCAT Domain Index, Transactional, and Before Insert/Update Trigger

TLDR: The CTXCAT index is supposed to be transactional, but Before Insert triggers that modify the indexed column don't seem to induce an update. I'm running on Oracle 9i. (Actually, I'm running on ...
0
votes
1answer
39 views

Select * from (every table in an subselect)

I was trying to get an select * from (for column table result) every table_name with the result bellow, how can i achieve this? (SELECT a.table_name FROM all_cons_columns a JOIN all_constraints c ...
2
votes
3answers
153 views

Storing file into oracle db

I'm developing a java web-app for the acquisition of contracts, and that have to receive some file from an external system. For each new contract i recieve some information about the new customer and ...
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votes
0answers
20 views

exporting DDL of all views Oracle

How can I go about exporting DDL of all my schema views in single .sql file ? I've read there is a function DBMS_METADATA.GET_DDL But I can't figure out how to use it for my case. I know how to ...
1
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0answers
48 views

'ORA-00059: maximum number of files exceeded' on Oracle 12c

I have a test database. Every night a script drops and recreates a number of pluggable databases that are used for our automated test runs. Recently, I have started getting 'ORA-00059: maximum ...
0
votes
1answer
29 views

Writing a trigger for every time a user logs in

I want to write a trigger which runs every time a user logs in and saves the name of each user, for example. I have written trigger in this way: create or replace TRIGGER LOGON_TRG AFTER LOGON ON ...
1
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0answers
19 views

Oracle - physical writes to an index

We have a large UPDATE (affects about 200K records) on a huge table (80M records). Due to a coding mistake, the UPDATE updates the same set of rows (200K) all over again with the exact same value. ...
0
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2answers
43 views

Boolean fields in Oracle, best practice?

I faced again the serious problem, that Oracle simply doesn't have a boolean field type. I need to use char(1), or smallint, or some other. What is the best practice, how to emulate boolean values in ...
0
votes
1answer
33 views

Combining data of multiple rows in view

I have a table that holds timetracking data of users and looks somewhat like this: projectid activityid worklocationid year week day hours 1 22 21 2014 37 ...
0
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0answers
128 views

Oracle Recovery fails

I am quite new to DB-Administration and accidently deleted a tablespace-file manually (via OS operations) without deleting the tablespace itself... Now I am trying to open the database again and ...
0
votes
2answers
99 views

I'm trying to use a variable in Oracle PL/SQL, but I'm getting an error. What's wrong here?

I come from an SQL Server background and I'm trying to figure out how to use Oracle PL/SQL variables. I'm trying to declare a variable and then select that variable. It sounds simple, but I am doing ...
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0answers
42 views

Selectively load data using Oracle 11g r2 External Table Preprocessor

I am using the Preprocessor feature in Oracle 11g r2 to load several data files in a table. However, the raw files seem to have certain rows that shouldn't be imported with the rest. For example: ...
0
votes
0answers
22 views

What is LDAP JDBC url with username and password to connect using DriverManger.getConnection

I want to connect to LDAP server using JDBC with username and password using DriverManager.getConnection method. I have all the credentials using which I am able to connect to LDAP from Sql * Plus. ...
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0answers
35 views

Installing Oracle Database 11g on Mac

Does anyone know how to install Oracle 11G on a Mac? I believe some people did it using VirtualBox. I have been googling online for tutorials. Any help/link in appreciated.
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0answers
46 views

merge in cursor is slow ,any alternative for that in oracle 11g

we have a requirement like below. we need to update one table A from another table B based on joining criteria. both tables are having porper joining columns. Table A has 2 columns missing_order_cw ...
0
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0answers
21 views

How to do multi master replication on Database with Triggers in Oracle

I need advise on how to go about multi master replication on Database with Triggers in Oracle. i have "Database A" with Triggers on every transaction. need to have 2 more db's as hot standby,problem ...
0
votes
0answers
30 views

I need a listing of all of the oracle users and their access levels to the database

Have already found great note oracle - list users with access to certain tables But can someone help me to combine these select statements to get listing of all of the oracle users and their access ...
0
votes
1answer
304 views

Can't connect to a Oracle db instance via SQLDeveloper

When I set the connecting information on the GUI in SQLDeveloper I get the following error (everytime!) Status : Failure -Test failed: IO Error: The Network Adapter could not establish the ...
0
votes
1answer
98 views

What is the fastest way to clone/copy oracle databases on the same machine?

I want to clone oracle 11g databases on the same machine and I need to change user etc. from e.g. PROD to DEV. For that I use expdp/impdp, but this tends to be slow with increasing database size. I ...
0
votes
0answers
41 views

ORACLE LINKED DB ERRORS

I am facing the following error when i was trying to update oracle table from sql using oracledb,If i was trying to update single records it works fine but it fAILS ON BULK UPDATE. kindly some ...
1
vote
0answers
21 views

What is the fastest way to clone/copy oracle databases on the same machine?

I want to clone oracle databases on the same machine and I need to change user etc. from e.g. PROD to DEV. For that I use expdp/impdp, but this tends to be slow with increasing database size. I need ...
0
votes
0answers
45 views

Explain plan shows a table not in the query

In trying to optimize a 2 minute query against an SAP R3 Oracle database, I examined the Explain Plan in Toad and found that most of the query's time is spent on a table that isn't even in the query. ...
0
votes
1answer
33 views

Add range of values under a column using rowid

How do i add range of values in a column based on row id? For example: I have to add all the values under column "time" where rowid>=1 and rowid<=5. Additionally is it possible to divide the then ...
0
votes
0answers
45 views

How to import data into Oracle 11g r2 daily

I need to batch load several log data files (comma delimited but they don't have a .csv extension in the file name) once each day into an Oracle database. I'm sure this is a very common use case, but ...
0
votes
1answer
53 views

How to know the timestamp of when the query was executed?

1)How to find when a query was executed.I ran a query couple of days ago,im not sure about the exact time, I want to know at what date and time the query was executed. Is it possible to get that ...
0
votes
0answers
35 views

Oracle 11g Enterprise Manager failing after backup restore on new host

I'm doing disaster recovery scenario on Windows Server using full cold backups made with EM. My actions are following: Install Oracle 11g SE on new host with creation of db with same path and name. ...
0
votes
0answers
34 views

My Query is waiting on “db file sequential read” for 5 minutes and getting timeout after that in Oracle

I have a very simple query when I run it individually from the SQL developer in my oracle database it is running perfectly, but when it is part of application flow then it is failing with timeout and ...
-3
votes
1answer
74 views

Selecting a row and row above [closed]

I need to select a row from a table if it has "PART_NO=2" and the row just above it. What should be the query. I'm using Toad for Oracle. Thanks. **Data** *Title------Part_seq_no------*End_time ...
2
votes
2answers
80 views

Oracle Data Pump Import imports no records

When we do an Oracle Data Pump import of our database, it runs without significant errors. However, on one table Oracle reports that 0 records have been imported. Processing object type ...
0
votes
0answers
43 views

How to find materialized view log dependencies over database links

Is there a way to identify materialized views that have used a given MV log, even if the MV is using the log over database link? (Oracle EE 11.2) The problem is that I would like to drop a certain MV ...
0
votes
1answer
19 views

Connecting to Standalone/RAC

I would like to know if SERVICE_NAME is always configured for a Oracle standalone and RAC setup or it's optional to set up. In my code I would like to connect to Database using SERVICE_NAME. But if ...
0
votes
0answers
92 views

notification email when deadlock is encountered in alert log,oracle

how to send a notification email when deadlock is encountered in alert log on any node like the deadlocks encounterd below (an alert any time a deadlock is detected in alert log.) Node 1: Mon Sep ...
1
vote
2answers
181 views

Repopulating Oracle tables using data from Excel/CSV file

I'm developing a Java EE application that utilizes Hibernate/JPA. Some of the data I want to use comes from another Business unit's spreadsheet that I need to periodically (re)load into 5 Oracle ...
0
votes
0answers
21 views

Oracle Counters for Windows Performance Monitor exceeding handle quota

On several windows 2008 R2 servers with an oracle 11.2.0.3.0 database installation i see the following warning in the eventlog every couple of days: Windows Management Instrumentation has stopped ...
0
votes
2answers
56 views

Oracle service_name vs database name

I am reading about Oracle and I am confused with the two names: service_name and database name. Do they both refer to the database name used while creating a database with the CREATE DATABASE xxxxxx ...
0
votes
0answers
11 views

ORDB whats the use of “add scope”

I'm newbie to ordb. In a oracle tutorial I found this. What is the use of this. And where should we use this add scope. I thought its a referential constraint. add scope for (company) is stock
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0answers
44 views

Debug network latency when getting data from oracle

I have an application which needs to connect to Oracle database to bring my instance up. Oracle server is running on U.S server, While I am accessing it from India Sadly it takes an hour to get ...
2
votes
0answers
45 views

Master and Read Only Oracle Database synch is unacceptable [closed]

Not a DBA, I am a developer, currently my team uses a Database set up created by the DBAs which we have little control over. All write's go to a master and then from there it is synched out to read ...