Using Oracle Datapump when target table has additional column
Table 1 has 5 columns. Table 2 has the same 5 columns, plus an additional non-nullable column. I would like to use datapump to copy the data from Table 1 to Table 2. In Sql Server, I can use bcp and...
View ArticleMonitor unusable indexes on oracle
I have a lot of database, a ton of partitioned tables and many processes running on them. In a couple of occasions I hade problems for unusable indexes or partitions of them. A bugged procedure, or a...
View ArticleUnexpectively slow data loading into Oracle
Big amount (4.000.000+) of files (1-4Mb each) are loading into Oracle 10g for about several days. Table is allocated in big tablespace, which was created on special volume (labeled BIG_VOL) over...
View ArticleGraphical user interface to change data capture on Oracle [closed]
I’m learning how to implement change data capture in Oracle. However, not being a DB specialist but rather a developer, I find the process tedious with respect to other things that I have to do. I end...
View ArticleIs the separation of data from different applications via Oracle schemas...
I am evaluating the pros and cons of having different Oracle schemas vs. separate Oracle servers. Having a dedicated server for each application is really expensive and I only want to consider this if...
View ArticleHow to detect in which schema a procedure is called?
I’m struggling with a problem in Oracle 12.1 regarding to procedures. We are using a data isolation approach based on schemas. We use one schema as PUBLIC and each project has exactly the same tables...
View ArticleResults of SAMPLE clause using a DBlink between 2 Oracle databases not...
I’m using the SAMPLE clause to retrieve random rows from a table. It works fine except when the table is from another database. I’m using a database link between 2 Oracle 11g databases (11.2). This...
View ArticleCan't open/select a table created with another user
I created a table with one user and cannot read or select the table after I log in with another user. Database: Oracle Name: TestDatabase User name: sysadmin Another user “user1″ was created in the...
View ArticleJDBC pooling Oracle driver Socket read timed out
I run Java EE application on Glassfish server v3 together with Oracle 12 DB on the same machine under Windows Server 2012 64bit. I use latest ojdbc7 driver. Connection pool config:...
View ArticleORA-08102 while creating a view
I am learning PL/SQL programming. I’m trying to create a view with the following statement: create or replace view viewName as select ID from employees; The view creation throws the following error:...
View ArticleFailed to drop column – value too large
I’m trying to remove column from DB and got a strange error: Error starting at line 147 in command: alter table config drop column dte Error report: SQL Error: ORA-12899: value too large for column...
View ArticleLarge sequence cache in Oracle
There was a situation of 108,368,168 executions along with 7,373s elapsed time for “update seq$ set increment$=:……..” statement while loading massive(i.e. populating million rows) data in the table. It...
View Articlejoining same table without a common field
Oracle 11g/SQLPLUS Given single table TABLE with three fields ID, PARM, VALUE, I want to select and group by based on different values of VALUE E.g. ID PARM VALUE id1 accnt France-1 id2 model Type-1...
View Articlemy 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 as...
View Articleoracle VectorLayer without geometry – How to get attributes?
I have a prolem to iterating over a oracle VectorLayer without geometry in QGIS 2.6. self.uri = QgsDataSourceURI() self.uri.setConnection("localhost", "port", "xe", "name", "password")...
View ArticleOracle redo log buffer cache vs redo log file
while going through the oracle architecture I got stuck with the below question. could someone help me answering this. why do we need both redo log buffer cache and redo log files?? why can’t we write...
View ArticleORA-00942: table or view does not exist while creating synonym
We are using oracle 11g, the db structure goes like this: We have users CST and FAS. CST contains a table ST_CAT2, a public synonym ST_CAT has been created for the table CST.ST_CAT2 as a SYS user....
View ArticleHow to unify three separate tables having same data, same columns but tuples...
This needs to be done in order to complete the unification of many tables present in different databases with different languages. (Part of Dictionary Management, will have caption and messages where...
View ArticleUnable to connect to Oracle from SQL Developer
below is the error Status : Failure -Io exception: The Network Adapter could not establish the connection It’s connecting from my system but unable to connect from other systems on the network. ping...
View ArticleCan't create user in oracle
i’m using oracle xe edition at ubuntu 14.04. I’m trying to create a user using my sysdba account but when I type the command create user 'myuser' identified by '******'; it gives the error message...
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