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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Can Oracle row-level security work with user session credentials?

Can row-level security in Oracle be controlled by a user's session credentials or user context? Here's an example to illustrate what I'm looking for: Our database contains a bunch of sensitive ...
8
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1answer
660 views

Column level security

I am in need of a solution to hide specific columns in a table. We have people who need to build reports against this database and specifically some of these tables with confidential information but ...
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3answers
124 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 ...
4
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2answers
2k views

Does Oracle support table-level & column-level permissions?

If there is a customer table, and some extra-private/secure information like SSN is there, should I create another table to store such information and lock that table so only certain people can view ...
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2answers
1k views

Is to possible to forbid access to tables in own schema - Oracle?

Lets assume that we have the following situation: We have an Oracle schema/user: USER_TEST (with the "create session" privilege). SYS as SYSDBA creates couple Tables on schema USER_TEST. Is it ...
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2answers
535 views

Oracle 10XE: Stop schemas seeing the all_users table?

I've got an Oracle 10g XE Database that I want clients to be able to view remotely via SQL*PLUS or SQL Developer. Each schema has a name which includes the name of the client, so anyone looking at the ...
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0answers
30 views

IO contention on raid5 happens?

I found all of the Oracle data files including redo, control, system, index and everything are in just one directory. And that directory is on Raid 5 disks. In this case do I need to do something ...
4
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1answer
458 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 ...
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2answers
10k 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. ...
0
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1answer
113 views

How do the Oracle DB instance and the local listener communicate?

It seems this my other question needs some background: Basically, on Windows, how do the Oracle DB instance process and the listener process communicate? Do they use TCP? Is the configuration of this ...
0
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4answers
2k views

Stored Procedure result is not showing in Datagrid pane in Toad for Oracle

Hi I have created a procedure in Toad for Oracle 12. When I execute the procedure it does not show the dataset in datagrid pane. While procedure get executed successfully. What I am doing wrong. ...
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2answers
8k views

How do I get the difference in minutes from 2 timestamp columns?

Can't seem to figure this out. Just need the difference in minutes between 2 oracle timestamp columns. END_TS START_TS ...
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0answers
38 views

Oracle 11g xe replication/cluster free license?

I am new to db clustering/replication and I want to set up a cluster/replication of a database backed by t2 nodes. I used docker and spun up a preconfigured oracle 11g xe database ...
0
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1answer
380 views

Toad for Oracle 64-bit : 1603 - Fatal error during installation

I'm trying to install Toad for oracle client, my Toad version is 12.1 for 64 bit system, i have succeeded to install oracle client 12c for 64 bit system, but i have stumbled by a problem when ...
0
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1answer
372 views

How to install ROracle on Linux

I am trying to install the ROracle library. This fails: install.packages("/storage/Downloads/ROracle_1.1-11.tar.gz", repos = NULL, type = "source") ** package ‘ROracle’ successfully unpacked and MD5 ...
0
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1answer
903 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
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1answer
2k views

netca failed during installation of Oracle 12c on Windows

I have installed Oracle 12c on Windows Server 2008 and during installation it shows the following warning: [INS-20802] oracle net configuration assistant failed When I click retry it continues ...
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2answers
3k views

Trouble setting up Nagios to monitor Oracle services

I've got an install of Nagios XI that doesn't seem to want to talk to any of my Oracle services here. I've pulled out the monitoring command and am running it manually, after setting ORACLE_HOME and ...
2
votes
1answer
138 views

ORA-12528 and ORA-12505 error on oracle database 11g

Its been one week since i last try to run my final project that i worked in my last internship at some banking company. Suddenly, my webapps (java project) in eclipse cant start. In the log it says ...
2
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2answers
1k views

Is it possible to monitor role and privilege grant/revoke using triggers?

Is it possible to monitor role and privilege grant/revoke using triggers? I' aware of doing that using Oracle audit tools however, it's interesting is it possible to do that using triggers.
0
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2answers
126 views

Error in trigger: table X is mutating, trigger/function may not see it

Having looked at the following Trigger, still getting the Row 2 error: "ORA-04091: table SUMMITTEST.APL_LOG is mutating, trigger/function may not see it" Please can anyone provide any help in ...
0
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0answers
26 views

Oracle listener up but instance connection blocked ORA-12528 / ORA-12505! [duplicate]

Its been one week since i last try to run my final project that i worked in my last internship at some banking company. Suddenly, my webapps (java project) in eclipse cant start. In the log it says ...
0
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1answer
1k views

sqlplus startup - failure in processing system parameters

I am trying to do the startup command this is what I have done set oracle_sid=ORCL sqlplus /nolog SQL> conn /as sysdba startup It shows this error message, failure in processing system ...
0
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1answer
54 views

ORA-04031: unable to allocate 32 bytes of shared memory

I want to flush shared pool because of error like ORA-04031: unable to allocate 32 bytes of shared memory So I want to flush shared pool using alter system flush shared_pool; Connected as ...
2
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2answers
110 views

Should new roles be assigned to SYS

Should the user SYS be assigned new roles beside the roles that it has when it was created?
0
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1answer
214 views

Expdp with metadata_only gives way too large dump. Why?

There is an oracle 11g schema with amount of data about 700 Gb. There are tables/indexes only in that schema, no procedures/packages. Doing expdp on that schema expdp schemas=TheSchema directory=dir ...
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1answer
35 views

Concept of Cardinalilty in Oracle

As per wikipedia: Cardinality refers to uniquess of data: In SQL (Structured Query Language), the term cardinality refers to the uniqueness of data values contained in a particular column ...
0
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2answers
106 views

my oracle db won't open please help

This is what happens when I try to query as DBA: SQL*Plus: Release 11.2.0.1.0 Production on Mon Nov 10 22:28:00 2014 Copyright (c) 1982, 2010, Oracle. All rights reserved. Enter user-name: sys ...
0
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2answers
346 views

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 ...
0
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1answer
2k views

I have mistakenly deleted Datafiles.

In my production server I have mistakenly deleted datafiles. When I am trying to open the database I am getting an error. The files are not important but the database is not opening up. SQL> ...
0
votes
3answers
7k views

Oracle no privileges on tablespace USERS

I have a brand new Oracle database that is giving the error: ORA-01950: no privileges on tablespace 'USERS' I have done: alter user kainaw quota 100M on 'USERS'; grant unlimited tablespace to ...
0
votes
1answer
70 views

How to achieve using TRIM command on SELECT * From TABLE

I am building DWH where in source data dump is made through SELECT * query into DB. I am taking dump from the source DB, to save time (else had to write 115 select stmt using TRIM where average number ...
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vote
3answers
2k views

Oracle query is slower the second time

I have a general question about something I'm seeing in performance tuning in Oracle. I have a query that I'm testing. It's too big and complex for me to provide a simple example, sorry! (I tried ...
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9answers
20k views

How does the Oracle DUAL table work?

SQL> desc dual Name Null? Type ----------------------------------------- -------- ---------------------------- DUMMY ...
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2answers
3k views

ORA-02049 and ORA-02063 Errors

Select For UPDATE NOWAIT is performed on a table by 20 processes in parallel The error below is returned by the 4 processes out of 20 (16 processes are successful) SQL_UPDATE_ERROR- : SQL update ...
0
votes
1answer
1k views

ORA-01033: ORACLE initialization or shutdown in progress using Oracle Express

I am using Oracle Database 11g Express Edition. I'm on Windows 7-64Bit I get this error when trying to access the database: ORA-01033: ORACLE initialization or shutdown in progress I set up the ...
0
votes
1answer
361 views

Unable to create Central Inventory

I am Traying to install Oracle 11g on my Linux a have alrady config the varible and X-host but can,t able to Create Central Inventory my Central Inventory location is : /u01/app/u0 ** and ...
1
vote
1answer
674 views

Exporting from Oracle enterprise edition to standard edition reaches schemas limit

So, I'm trying to export an oracle database(10.2) from EE to SE over a networklink. It all works fine except that I'm hitting a limit. The database has 1335 schemas and it seems that I can't transfers ...
0
votes
1answer
768 views

Export, based on query, into INSERT text file

I need to export some data into a file. The data are selected with a query that will often be made of multiple joins. I want the import operation to be as easy as possible. I was thinking of building ...
0
votes
3answers
240 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 ...
0
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2answers
2k views

Oracle schema import is not importing all the tables present in the schema dump file

I have exported an existing oracle schema from another machine and then imported it in my local machine. Import was successful, but some tables which are present in the export dump file are not ...
0
votes
2answers
113 views

Can we take Backup on Disk and Tape at same time by RMAN?

I'm trying to take backup by RMAN. I want to know can we take backup of database on disk and tape at same time by using RMAN? If yes then please share some documentation Or if no then please give the ...
1
vote
1answer
235 views

Why do I get ORA-27102 ON WINDOWS 64 BIT if I increase the memory to 2.5GB

BANNER Oracle Database 11g Enterprise Edition Release 11.2.0.2.0 - 64bit Production PL/SQL Release 11.2.0.2.0 - Production CORE 11.2.0.2.0 Production TNS for 64-bit Windows: ...
0
votes
2answers
210 views

Split a string in different columns on basis of no of spaces

i want to split a string in different columns in the following manner through oracle Input String: hello how are you doing Output: hello how, how are, are you, you doing please help guys.. !! ...
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0answers
33 views

Export entire Oracle schema to ASCII and import into DB2

I'm looking for a solution to export a number of schemas from Oracle to ASCII or other flat file format. The data then has to be read by DB2 import. Does anyone know the what oracle export commands ...
0
votes
1answer
164 views

Update Statement in SQL

I have one table named as temp_stock_reco. I have created one procedure for update two columns in that table. CREATE OR REPLACE PROCEDURE TEST_RECPT_0705 is CURSOR RECEIPT IS select ...
3
votes
0answers
2k views

Access 2010 linked table - solve the “decimal field's precision” error

I have an Access 2003 database (running on Win 7 64-bit, Office is also 64-bit) that has many linked tables pointing to an Oracle 11g instance through 64-bit Oracle ODBC driver. Most of the tables ...
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0answers
53 views

How to find out the maximum number of datafiles per tablespace in Oracle?

According to this Oracle document, the maximum number of database files per tablespace is "Operating system dependent; usually 1022". I know there are queries for some of the other limits mentioned ...
0
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1answer
224 views

ORA-00838 error after increasing MEMORY_TARGET

I've increased MEMORY_TARGET in pfile and then create spfile. I'm getting the same problem as before: ORA-00838: Specified value of MEMORY_TARGET is too small, needs to be at least 3084M The ...
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0answers
20 views

Portable Method of Deploying Oracle Express on Windows (Ideally without Installer)

I'm looking for a portable way of deploying Oracle Express alongside a C# application on a continuous integration machine running CruiseControl. Ideally I would not have to use the installer - this ...