Questions tagged [oracle]

All versions of Oracle database. Add a version-specific tag like oracle-11g-r2 if that context is important in the question. Do not use for Oracle products such as applications or middleware or other database products owned by Oracle, like MySQL or BerkeleyDB.

1,146 questions with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
7
votes
1answer
910 views

Oracle Ref Partitioning: Deadlock due to child table row migration

My ordering application uses Oracle 11g Database. This DB has a primary table ORDERS and multiple child tables like ORDER_DETAILS, PLAN etc. ORDERS table is LIST partitioned on STATUS column and all ...
7
votes
2answers
104 views

Changes access method for non-correlated subquery

Oracle 11g R2 Unfortunately our application has per row security "features". We have a query that looks about like this: Bad, slow: SELECT someRow, someOtherRow FROM bigTableA a WHERE EXISTS ( ...
6
votes
0answers
6k views

DBeaver launch script from file

I'm trying to find a good alternative to SQL Developer for performing queries and scripts on Oracle instances. I find DBeaver to be an interesting tool, it has a lot of great features, BUT it seems ...
5
votes
1answer
4k views

ORA-04091: table ExpenseTable is mutating, trigger/function may not see it

I have two tables and a trigger and am inserting values in ProjectsTable like this: CREATE TABLE ProjectsTable ( ProjectID NUMBER(6) NOT NULL, ProjectName VARCHAR2(200) NOT NULL, Cost ...
5
votes
2answers
2k views

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 ...
5
votes
1answer
982 views

SQL Developer Data Modeller and Data Dictionary question

I'm not a DBA but I am a (mostly!) competent SQL report writer. Can I trouble you DBAs for some pro-knowledge, please? I can connect SQL Developer to Oracle XE's data dictionary without any problem, ...
5
votes
1answer
2k views

Deferrable Foreign Key Constraints

What are the consequences of making a foreign key constraint DEFERRABLE INITIALLY IMMEDIATE instead of NONDEFERRABLE? This answer on StackOverflow mentions the performance impact that comes with no ...
4
votes
1answer
4k views

Oracle Database Server TNS Listener Remote Registration Vulnerability (CVE-2012-1675)

Some of our Internal DBs Oracle installed in Linux and Windows servers have been highlighted with the issue Oracle TNS Listener Remote Poisoning (CVE-2012-1675). This security alert addresses the ...
4
votes
0answers
310 views

RMAN-06169, but only when backing up via OEM 13c

When running a Level 1 or Level 0 backup via OEM 13c, the following RMAN error causes the run to fail. (The RMAN script is being ran with proper sysdba credentials from OEM 13c.) RMAN-06169: could ...
4
votes
0answers
987 views

Oracle: built in SQL pretty-print?

Oracle has some packages that will dump objects in SQL format, such as dbms_metadata.set_transform_param. One option that can be set is to "pretty print" the SQL. Is there anything in Oracle that ...
4
votes
1answer
2k 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 ...
4
votes
1answer
162 views

Determine weekend based on country

I've a table called BOND which have columns BOND NAME, COUNTRY of ISSUE and ISSUE DATE BOND Country ISSUE_DATE =========================== B1 INDIA 20-AUG-2017 B2 ISRAEL 18-AUG-2017 How ...
3
votes
2answers
6k views

How do I kill Oracle DataPump expdp job stuck in DEFINING state?

My job failed because dump file already existed. Now it's stuck in DEFINING state. How do I stop/kill it? declare h1 number; BEGIN h1 := DBMS_DATAPUMP.ATTACH('EXPORT_TABLE_2017_1205_1402',user); --...
3
votes
1answer
122 views

Alert on Table size

I need to create an alert on my application table when it reaches 98% of its threshold. I wrote an SP which checks the rows and logs the information into a log file which was monitored by alert system ...
3
votes
1answer
1k views

Why would a query return oracle.sql.NUMBER@[hex value] in place of a numeric value?

I'm seeing some odd behavior in an Oracle 11gR2 database. When I select from a particular table, using SQL Developer, certain rows of the result set include non-numeric results in a NUMBER column (...
3
votes
0answers
1k views

Getting email notification when jobs are created under user_schema rather than sys?

I log in as sys and set the smtp for scheduler: BEGIN DBMS_SCHEDULER.set_scheduler_attribute('email_server', '10.1.1.15'); DBMS_SCHEDULER.set_scheduler_attribute('email_sender', 'user@compny.com')...
3
votes
0answers
257 views

UTL_MATCH.JARO_WINKLER_SIMILARITY - how can I set the prefix scale?

I'm using UTL_MATCH's Jaro Winkler similarity function and it seems to be performing well. However, I would like to adjust the prefix scale according to the situation. Is this possible? Is it possible ...
3
votes
0answers
116 views

Oracle replicat is abending when oracle is having special char while loading to teradata

I am doing replication from oracle to teradata where oracle is having below charter in one column. ->->-> ACSII value for this char is 26 . I need to replace it with null . In the charmap we have ...
3
votes
0answers
572 views

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 ...
3
votes
1answer
4k views

sqlplus is not starting

I have a strange error on a Red Hat machine. InstantClient is installed in and ORACLE_HOME is set to /opt/oracle/product/112030_cl_64/cl/ The user which installed the client was oracle:oinstall. My ...
3
votes
0answers
936 views

Mismatched Oracle drivers - need upgrade (10.2.0.1 to 10.2.0.5)

I was forwarded here by recommendation from Stack Overflow ...... We are running Oracle Enterprise software on various client and DB servers and we are experiencing a problem (outlined here) where ...
3
votes
3answers
21k views

Create Oracle DB LINK to a database with no DB_DOMAIN

I'm trying to create a database link between this two DBs. My local DB is 11.2.0.3. SQL> select * from global_name; GLOBAL_NAME -------------------------------------------------------------------...
3
votes
1answer
3k views

12c Grid Agent installation issues - Shell path is incorrect or not defined

I am installing 12c Grid Control agent on my server via Enterprise manager. The targer server is a UNIX server with AIX OS on it. I add target host manually, enter authentication information, host ...
3
votes
2answers
2k views

Case insensitive search of CLOBs in Oracle 12

Question: What is the most performant way to do a case-insensitive search in a CLOB column? I've simplified the query to easily reproduce the problem. The filedata table can have millions of rows. ...
2
votes
0answers
121 views

Oracle BI 12C (12.2.1.4.0) Configuration Assistant Error (Adding default service instance) on Windows Server 2016

I'm installing Oracle BI Pub 12c (12.2.1.4.0) on Windows Server 2016, all steps were successfully passed but on "Add Default Service Instance" it throws below error Not sure what to do now, ...
2
votes
0answers
22 views

Is DBMS_CRYPTO.RANDOMNUMBER a cryptographically secure pseudo-random number generator?

Oracle documentation clearly states that DBMS_CRYPTO.RANDOMBYTES is a cryptographically secure pseudo-random sequence of bytes. But how about DBMS_CRYPTO.RANDOMNUMBER? (or DBMS_CRYPTO.RANDOMINTEGER) ...
2
votes
0answers
111 views

Why is an Oracle Package Variable Intermittently Incorrect after Multiple Updates

I am supporting an application that runs on Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production. We have a table that stores hourly data that uses triggers call a package to ...
2
votes
0answers
85 views

Whether or Not to Use DataPump with Oracle GoldenGate

We are setting up GoldenGate to keep 3 of our Oracle databases in sync. Regarding configuration:   We plan to have an instance of GoldenGate running on all 3 nodes. Each node will run an extract on (...
2
votes
0answers
442 views

Oracle 12c Database Config Manager very slow at creating a new database

I have installed Oracle 12c on a number of machines (Windows 10, 2012, 2016 mostly) before and created several databases on them, using the Database Config Manager, all with no real hiccups. However ...
2
votes
0answers
59 views

Oracle DISTINCT with NULLable columns

There is a longstanding(?) problem(?) with Oracle that if you want to use a DISTINCT select on a column which has a B*-Tree Index but is nullable, that the index is not used. (As other answers suggest,...
2
votes
1answer
2k views

Migrated DB from 12c to 19c with IMPDP failed

I have migrated a DB from 12c to 19c with IMPDP and EXPDP. While importing I have seen some errors. Below is an extract of the errors. Errors During Import Processing object type SCHEMA_EXPORT/TABLE/...
2
votes
0answers
193 views

In SQLPlus, why the first run of the command doesn't work?

I use SQLPlus connecting to an Oracle database. See below snapshot. Why the first run of the command show con_name doesn't work and the second run works? Edit I have to admit that I typed the command ...
2
votes
0answers
205 views

Incremental Schema Stats (With partitioned/Subpartition table) gathering is taking too much time in oracle version 12.2.0.1

When I am gathering schema stats with below options, it is taking too much time: EXEC dbms_stats.gather_schema_stats ( ownname => 'SCHEMA', granularity => 'AUTO', CASCADE=> true, ...
2
votes
0answers
95 views

How to monitor progress of Oracle Materialized View

I have created a materialized view in Oracle 12.1 database. The master table has materialized view log created, so that I can do a fast refresh. I have executed the refresh using DBMS_MVIEW.REFRESH, ...
2
votes
1answer
81 views

How to point tablespace in Oracle's pre-built Developer Day VM to another mount point

I have downloaded and started up Oracle's pre-built OTN Developer Day VM. The VM is running on an SSD. I want to load some data for development purposes. I am planning to create a new user and load ...
2
votes
1answer
280 views

Non-CDB database vs Single tenant CDB

I am looking at the prospect of upgrading from oracle 11G to 12C, and I am looking at the cdb vs non-cdb models, and I am having a hard time seeing the benefit of using CDB, without multitenant ...
2
votes
0answers
60 views

Does Azure SQL natively support being the subscriber in transactional replication where Oracle is the publisher?…and if PostgreSQL is the publisher?

Is there a native way to setup transactional replication where an Azure SQL database is the subscriber and the publisher database is in Oracle? What if the publisher database is in PostgreSQL? If ...
2
votes
0answers
883 views

How do I do an ODBC connection to ORACLE from SSIS/ Visual studio?

Despite that OLE Db and ADO.NET are newer than ODBC potentially, I've heard that ODBC connections to Oracle are potentially faster within SSIS. So --- I'm trying to set up a simple ODBC connection to ...
2
votes
0answers
77 views

Non-standard number data types in Oracle

I'm not sure that this question belongs to this StackExchange. I've asked this question on StackOverflow: Besides the "usual" number data type where precision is greater then scale there ...
2
votes
1answer
2k views

Oracle Warning in Alert Log Regarding PGA_AGGREGATE_LIMIT

Introduction During the startup process of our Oracle instances, we are encountering the following error message in the alert log: WARNING: pga_aggregate_limit value is too high for the amount of ...
2
votes
2answers
301 views

Deadlocks With Trigger Based Replication

A table ORIGINAL exists with the following structure: ID VARCHAR Length 10 (key) VALUE VARCHAR Length 10 (non-key) A table REPLICATION exists with the following structure: ID ...
2
votes
0answers
2k views

ORA-01031: insufficient privileges solution oracle

Create or replace procedure myprocedure is stmt varchar2(1000); stmt2 varchar2(1000); begin stmt := 'create global temporary table temp(id number(10))'; execute immediate stmt; ...
2
votes
0answers
2k views

Configuration of TCP/IP with SSL and TLS for Oracle

I am trying to configure the connections to my Oracle database with tcp / ip using ssl I have been guided by the procedure of the site https://oracle-base.com/articles/misc/configure-tcpip-with-ssl-...
2
votes
0answers
979 views

Unable to start Oracle Listener - “The user name or password is incorrect”

I am trying to install Oracle Database 12c on a Windows Server 2012 machine. The installation goes well for the most part, except that I get the error "Oracle Net Services configuration failed" (that ...
2
votes
0answers
538 views

Bidirectional realtime synchronization between Oracle and SQL Server tables

I have to sync data between Oracle and SQL Server database tables. And I'm actually looking for some advice on which technologies to use or how to address this. At the moment I'm doing the Oracle → ...
2
votes
1answer
6k views

Why create a Materialized View Log with Primary Key or RowID, etc?

I have a table with 600million rows. I want to create a materialized view that filters it down to 50 million records but also uses REFRESH FAST ON COMMIT. To use REFRESH FAST I need a MATERIALIZED ...
2
votes
1answer
439 views

How do I run a database heavy query over jdbc without timing out (Oracle)?

For one of our applications (Pentaho Data Integration), we need to run queries through the oracle jdbc. Some of these queries are computation expensive and can take an hour or more to return any rows ...
2
votes
0answers
38 views

Replication to SQL Server and to Oracle not working for one database

I have a replication for many databases on one server to one SQL Server database and to Oracle. Replication for one database is not working while the other four databases are working. For SQL Server ...
2
votes
0answers
4k views

Oracle Database Client 12c Product Components

When installing the Oracle Database Client 12c Release 2 software on a Windows client the user has the option to select an installation type. These are: Administrator RunTime InstantClient Custom ...
2
votes
1answer
411 views

Oracle encryption wallet 12c

I exported a database to a transportable tablespace and send the data to a customer. They received the error: ORA-28365 Wallet is not open. Do I need to close the wallet before creating the export? ...

1
2 3 4 5
23