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4
votes
1answer
750 views

How to generate an SQL file with DBMS_DATAPUMP

I am trying to generate an SQL file with the DBMS_DATAPUMP api. This tasks is specifically adressed in Oracle support Note 1519981.1 (How To Generate A SQL File Using The DBMS_DATAPUMP API). When I ...
0
votes
0answers
152 views

Why only ~half of RAM is used by Oracle on Linux server?

Why Oracle 11.2 would be using only around half of available RAM on RHEL5 box? I have 64GB but 32GB is free which really annoys me. Any memory not used is wasted memory in my books - especially on ...
0
votes
1answer
811 views

Spool in Shell script not working for me

#!/bin/sh echo "Started at" `date +%Y/%m/%d" "%H:%M:%S` sqlplus -s ${ORA_LOGIN_SYSADM} <<EOF 2>&1 > /dev/null SET SERVEROUTPUT ON SET FEED OFF spool ech.txt create BEGIN ...
1
vote
2answers
338 views

Count values from one table using two columns in another table

I have a problem. I have table_1 (col1, col2, value) and table_2 (col1, col2). I want to count values from table_1 but only the rows which exist in table_2. In both tables col1 and col2 are key (not ...
0
votes
1answer
69 views

Oracle 10 RAC VIP returns non-VIP address for client

I am not a DB or even Oracle expert, but I wanted to understand when and why Oracle returns a different non-VIP address to the client, assuming this is correct behaviour? listener.ora LISTENER_DB-A ...
1
vote
1answer
152 views

Oracle Hot Backup Theory

After a hot backup, where all tablespaces are placed in backup mode seperately; i.e. alter tablespace user_data start backup; each datafile will have a different Checkpoint SCN in its header; with ...
0
votes
1answer
134 views

Convert string to number from xml at server side

I am having issues converting numbers stores as character (with . as decimal, sometimes are null) to number from xml on server side. Query is part of package. When I run the query below on my ...
1
vote
2answers
672 views

Specify NLS-Settings during Oracle installation under Windows

Is there an easy way to specify NLS parameters for the database during the installation? We want to install a new database (environment: Windows). For testing purpose we need NLS settings for ...
0
votes
1answer
293 views

I am upgrading from 11.1.0.7.0 to 11.2.0.3 with R12.1.3 while pre upgrade/catupgrd.sql erroring out ORA-00600

While upgrading from 11.1.0.7.0 to 11.2.0.3 with R12.1.3, during running the pre upgrade script catupgrd.sql, it is erroring out ORA-00600: internal error code, arguments: [qcisSetPlsqlCtx:tzi ...
0
votes
1answer
91 views

Getting sum result for last year divided quarterly

I am trying to get financial data grouped by each quarter of last year and also grouped by the last three weeks. Also, if it is possible, I want to have the type as a separate column with the type as ...
0
votes
2answers
139 views

Best practices for generating a tnsnames.ora entry

I need to integrate some scripts that export and import data from Oracle databases. They are shell scripts that rely on the TNS name being set up (e.g., scott/tiger@tns). The application owners are ...
1
vote
2answers
57 views

Oracle RAC Failover functionality clarification

we are running two node active/active Oracle11g R2 RAC cluster i need to replace public network cables on each node. I am planning to do as given below: Setup: OS: oracle Solaris 11.1 Sparc ...
2
votes
1answer
816 views

du of directories in a diskgroup in Oracle ASM

In Linux, you could run the below on a directory to find the size of each sub-directory: du -sh * When you're in asmcmdin the +FRA disk group for example, how can I retrieve the size of each ...
0
votes
0answers
25 views

table not taking records sequencially [duplicate]

While inserting rows into a table in oracle 10g, the rows are not inserted in the order I am putting them, like for the following inserts: insert into emp values (1000, 'debjani', 30); insert into ...
4
votes
2answers
555 views

Duplicate database leaves orphan archivelog files

I am cloning the production database to another one, lets say CLONEDB, in a regular basis. I am using rman duplicate database script like: run { duplicate target database to CLONEDB FROM ACTIVE ...
0
votes
1answer
234 views

optimizing init.ora oracle database server

Can anybody help me in optimizing my SGA, PGA and other paramters of the init.ora file. We usually have average of 159 sessions on the database server. I think there's some thing wrong with my SGA, ...
2
votes
1answer
176 views

Oracle 11g connect overhead

Currently one of our new applications is connecting to an Oracle 11g instance over 30,000 daily (at every user request) via their application server, using the same account. (it will be significantly ...
0
votes
0answers
185 views

Oracle StartUp Error [closed]

I am facing below issue while executing startup command. Please help me to get rid of below issue. SQL> Connected to an idle instance. SQL> SQL> ORACLE instance started. Total System ...
0
votes
1answer
426 views

Update does not working while select returns right results

I am trying to execute the query below: UPDATE( SELECT Ord.Completed FROM Product P INNER JOIN Order1 Ord ON Ord.OrderID = P.OrderID WHERE EXISTS( SELECT * FROM Delivery ...
1
vote
5answers
754 views

how to check whether Oracle database is accessed or not?

I am an Oracle DBA. Application owner is asking me when was the last time Oracle database was accessed? How do I find information about the DB usage timeline? I mean, I want to check whether it is ...
0
votes
1answer
121 views

Converting sql into mongodb nosql

I am trying to convert oracle sql into its mongodb equivalent version. create table my_hll as select mod(ora_hash(n), 1024) bucket, max(num_zeroes(trunc(ora_hash(n)/1024)))+1 val from previous_data ...
1
vote
2answers
1k 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
votes
2answers
168 views

DESCRIPTION_LIST in tnsnames.ora

How does this work? If I specify an address list, I know I can specify a load balance or failover option to switch the connection to the other address. But in case of various descriptors (DESCRIPTION ...
0
votes
0answers
91 views

how to update 'update trigger fired record's column?

I'm new on this task. I tried to update when I/F table insert after trigger. but it wasn't work.. There is my trigger source like.. create trigger T_ATABLE_I after insert on ATABLE for each row ...
0
votes
2answers
172 views

Oracle custom week of the year numbering based on first Monday of the year

I have following sql for generating dates, I wanted to change week of the year numbering based on 'First Monday of the Year'. Hence numbering would be, 01-05-15 ---> 01 01-12-15 ---> 02 ...
0
votes
0answers
105 views

How to cast as type of a table column?

I have multiple views with union like this: select column1, column2 from mytable union select cast(extcol as nvarchar2(15)), cast(extcol2 as nvarchar2(10)) from exttable But later I change the size ...
1
vote
1answer
422 views

Oracle Package in Data Dictionary that can't be dropped

I've encountered a very interesting problem that I can't figure out how to fix. I have a package that I wanted to create on my database with a wrapped body. I mistakenly omitted the word "BODY" from ...
1
vote
1answer
917 views

HTML entity decoding with oracle DBMS_XMLGEN.convert

Here, I am trying to convert the value, where I don't understand I am going wrong. Your help is highly appreciated! Here I am#44; THis is me there#39;s nowhere else on earth I rather be Here I am#44; ...
0
votes
1answer
238 views

How can I use Oracle's CONNECT BY PRIOR to only get specific revisions of hierarchical records?

I've got a table schema in Oracle 11 which is storing records that are linked together. The table schema is roughly like this CREATE TABLE "SOMEDATA" ( "ID" INTEGER NOT NULL, "ITEMNAME" ...
0
votes
2answers
256 views

Access Oracle GTT table data from another session?

I have using Oracle GTT tables with condition ON COMMIT DELETE ROWS. Now i know GTT tables data is only session specific. 1 session cannot see the GTT data of other session in General. But is their ...
0
votes
1answer
263 views

Is there are a way to restore System schema to it's original state?

I've installed Oracle 11g Database Enterprise Edition and my task was to import schemas. I'm totally new so I ran command: imp system/password file=path.dmp full=y And import everything (10 dumps, ...
-1
votes
1answer
254 views

what is the difference between data file and data block in oracle

I'd like to know if there is any difference between the data block which is the smallest logical unit of data storage in Oracle Database and the data file which is a physical file on disk that was ...
2
votes
1answer
185 views

Can you use “RENAME” instead of “FLASHBACK TABLE” to restore a table in Oracle?

Just a general question about flashback and the recycle bin in Oracle. I tried doing this on a demo oracle database I have but the recycle bin does not seem to want to be populated; and I want a ...
1
vote
1answer
776 views

How to find out the segment behind a corrupted block when the database cannot be opened?

Short Version: alter database open fails with ORA-00600. alert.log and dbv both point out that one data block (type: 6) is corrupted. I cannot select from dba_extents as that requires an opened ...
0
votes
1answer
63 views

Can'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 ...
1
vote
1answer
2k views

Not receiving archivelogs from production to remote side

I have a scenario in which we have Designed data guard. Where we have 2 standby sides. One standby is located locally and 2nd standby is located on remote side. The distance between local and remote ...
2
votes
0answers
169 views

Oracle instead of trigger update performance issue

I have a large table containing over 15million records with 4 columns that form a compound key. Because we use a development environment that doesn't support compound keys I was required to create a ...
1
vote
1answer
61 views

What is {Oracle}… {Oracle Off}?

I inherited an old script, that should, as part of a pl/sql routine, create a temporary index for me. I tried it on Oracle 11.2.0.4.0, but it does not accept the options. CREATE INDEX x ON y(gid) {IN ...
1
vote
2answers
82 views

Best approach to maintain a single set of DDLs and DMLs for multiple database type

In our application, we support multiple types of databases namely Oracle, IBM DB2 (both UDB and ZOS), postgresql and So on. Currently we are maintaining separate DDLs and DMLs for each of these ...
1
vote
2answers
3k views

Oracle 12c Express Enterprise Manager on Centos 6.5 is not reachable

I have Centos 6.5, and installed Oracle 12c. As dbca utility says after configuring new db, EM Express should be available on https://hostname:5500/em In fact, it is not. Neither on localhost nor by ...
0
votes
1answer
136 views

Alter trigger Oracle

Does alter trigger hang if a table is locked by some DML operation ? What kind of exception does it throw? Resource busy 0054 or some other exception...? I have tried to reproduce this scenario but ...
6
votes
1answer
451 views

Update all rows

I want to know the most efficient manner to update every row in an extremely large Oracle table for a single column. For example: update mytable set mycolumn=null; or: update mytable set ...
1
vote
2answers
2k views

Restoring an Oracle Backup Properly

I've been trying to do a proper restore of a database for weeks now and I'm convinced that I'm doing something simple wrong. I took a cold backup of the database before an update to an application ...
1
vote
1answer
143 views

Will SQL charset wildcard query work on Oracle database? [closed]

I am trying to run the following query SELECT * FROM GEEKYBRAINS.admin_emp where ename like '[sm]%'; It results in an empty set. The admin_emp table has the following data though. I am running ...
0
votes
1answer
242 views

Large 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 ...
0
votes
2answers
79 views

joining 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 ...
1
vote
1answer
128 views

What's the best practice to avoid collisions in throwaway temp tables?

In SQL Server, I'm used to creating a #temp table for temporary storage in a complex stored procedure. Not wanting to clutter up the system, I DROP the table when done. However, if I do the same in ...
0
votes
2answers
423 views

How to find all schemas where a table has records?

In my Oracle database, I have a number of schemas (users/owners) with similar table structures (about 100 in total). However, some tables are empty in a lot of schemas. Is there a way to find out for ...
0
votes
1answer
103 views

Free universe tool monitoring all database [closed]

Is there any free tool to monitor most popular databases like Oracle, MySQL, MSSQL, PostgreSQL. I want to monitor the real time performance of all the above mentioned databases with a single tool like ...
0
votes
1answer
77 views

Error while migrating SQL Server database to Oracle

I am getting this error message while loading database capture script output in Oracle SQL Developer. The source is SQL Server 2000 and destination is Oracle 11g. java.sql.BatchUpdateException: ...