XE :: Any Way To Get Tables Data Without Having Backup
Aug 15, 2012
My tnslistner is not working that is why i am not able to login in my database. so i have planned to reinstall it and if possible get my database back from old files.
i do not have backup, is there any way to get tables and data back.
I want to take backup of selected data from tables of a schema (as huge data, that is not used, causing slow query performance) I planned to create a seprate backup schema and tablespace to store the data from these tables. Then write procedures that can move the data to and fro among table of those schema. And create partitioned index on those backup tables.
I've a little question : Is it possible to use RMMAN to backup 2 tables incrementally ? I don't want to backup all the database but only these 2 tables.
I have to cleanup data from our tables (Production Environment) that contain millions of rows. The question is apart from the solution of the partitioned tables what alternative recommended solution suggests Oracle?
To delete these tables by using a cursor PL/SQL block or to import all the database and in the tables that we want to remove the old rows to use the QUERY option of the data pump utility.
I have used both ways and i have to admit that datapump solution is much much faster than the deletion that suffers from I/O disk.The question again is which method from these two is more reliable and less risky for the health of the database.
I came across an implementation where data from DB2 tables are moved to Oracle tables, for BI solutioning, using some oracle procedures called from MS SQL DTS packages which are scheduled jobs.Just being curious, can this be done using OWB or ODI rather than the above detour. I suppose there are some changes being done in those procedures before the data is being loaded into Oracle tables, can't this be done using OWB/ODI? Can it be scheduled too as jobs using OWB/ODI?
I have an oracle autoback of controlfile and spfile. I am trying to restore the production database using this backup, into a new server with a different directory structure.
I have completed the following steps in the restore process.
1. Creating a pfile from spfile
2. Changing the the location of cdump, udump, bdump and the control files ( there are three )
3. Then creating a spfile from this pfile
I am stuck on the next step where to rename all the datafiles and tempfile and restore the database. Following is what I did.
After mounting the database in RMAN, tried to run the following.
RMAN> run 2> { 3> allocate channel c1 device type disk 4> ; 5> @/home/oracle/rman_scripts/newloc.rman 6> SET NEWNAME FOR DATAFILE 1 TO '/u02/oradata/dorian/system01.dbf'; 7> SET NEWNAME FOR DATAFILE 2 TO '/u02/oradata/dorian/undotbs01.dbf'; 8> SET NEWNAME FOR DATAFILE 3 TO '/u02/oradata/dorian/sysaux01.dbf'; 9> SET NEWNAME FOR DATAFILE 4 TO '/u02/oradata/dorian/users01.dbf';
[code]....
I am getting the following error message.
Starting restore at 25-JAN-2012 21:26:48 released channel: c1 RMAN-00571: =========================================================== RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS =============== RMAN-00571: =========================================================== RMAN-03002: failure of restore command at 01/25/2012 21:26:49 RMAN-06026: some targets not found - aborting restore RMAN-06100: no channel to restore a backup or copy of datafile 30 RMAN-06100: no channel to restore a backup or copy of datafile 29 RMAN-06100: no channel to restore a backup or copy of datafile 28
One of the developer dropped 18 tables by mistake on USER@db schema. Developer asked whether I can restore those tables, but unfortunately they are not in the recycle bin. Developer is re-creating the table now though. But I am just curious whether we need to change these parameters (db_recycle_cache_size) in order support any similar requests in the future.
NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ db_recycle_cache_size big integer 0 recyclebin string on
We are using HP data Protector as oracle database backup tools.but we are facing below error. But we are able to login to the database through same user.
BR0301E SQL error -1033 at location BrDbConnect-2, SQL statement: 'CONNECT system/********' ORA-01033: ORACLE initialization or shutdown in progress BR0310E Connect to database instance ARP failed
My scenario is use RMAN to restore and recover database to a new host.The structure of two hosts are same.
In Host A: 1. Take a full backup. 2. Import a schema which has 191 tables in order to generate archivelogs.
In Host B: I put all the folders(backupset, autobackup, archivelog) to the same directory. But after recovered the database, i checked that schema just has 175 tables, the latest few tables are missing.
I need to export only the data from schemas or tables, how to do that with Oracle Data Pump? when we use schemas parameter this export all schema, not only the data right?
I created a data warehouse in oracle 10g n with three Dimension and one cube after that it crates 4 tables . How to use an insert sql statement to insert data in those tables n how to access them.
I have a problem with my Oracle 9i SQL Query and I'm struggling to get it done.
I have three tables namely Student, Lease and Room and want to retrieve data from these three tables.
I want the Student name, the Lease details and the Room No from these tables.
The problem with my SQL query is that I get all the information from the tables except from the Room table, where in the column it show Room_No but the values are not displayed, the query is given below.
one is "ora" it is a 8i version 2nd is "orcl" it is a 11g version
"Oracle" is the my local database. i wrote following program for comparing the row by row data in both the tables. Q)Is it BEST practice? If not let me know the best practice to compare data in tables? Q) If am not using the order by clause its giving me wrong output even though both the data tables has same data. WHY?
I want to do a comparision for the missing rows between two diffrent tables
TBL1 and TBL2 both with the same structure but with diffrent data some data is identical. though my data is huge i wanted to make sure the technique i am using
I have a requirement to get the data in "SQL" directly and should not use plsql/ can't redirect the output to a .sql file. I have a master table Main_tab which does have all "child table" names.
I want to build a query such that it will give all the data from child tables.
create table main_tab ( tab_name varchar(10));
insert into main_tab values ('one'); insert into main_tab values ('two'); insert into main_tab values ('three'); create table one ( a char); insert into one values ('a') create table two ( b char); insert into two values ('b') create table three ( c char); insert into three values ('c');
Now I have got the query to combine all the table data using
select decode (rownum,1,'','union all ') || 'select * from ' || tab_name example from main_tab
but I am expecting the output to get as a b c which is the data from tables one,two and three respectively.
I don't want to save the above select data in to .sql and then execute it , instead I want to run it on "fly" in SQL itself. Is there such a possibility to do so?
I have 3 tables as below. I am looking to get data from these 3 table at a time using a pl/sql block but unable to do. Is there any way that I can get the data in a single query.
I have to move data from old tables into new tables. I use a sqlplus script and execute multiple 'insert from select'. I thought the SQL statements are executed in sequence, one after the other. I run into this problem: Let's take this script for an example
insert into A (a,b,c,.... select a,b,c...... from X; insert into B (a,b,.... select a,b,.... from A joined with Y; commit;
After executing the script in our development DB
select count (*) from A returns 200
When the script is executed in production, A table record count is 5
select count (*) from A joined with Y; (used in the second insert)
returns 200.
It seems that the two statements are executed at the same time and table A is not fully populated when the select in statement two is executed.I suspect this is due to parallel execution in production.
Will executing
ALTER SESSION DISABLE PARALLEL DML; ALTER SESSION DISABLE PARALLEL QUERY ;
I'm having trouble to get the weekend records from 2 tables. table 1 has a start date and an End Date. Table 2 has END_INTV_TIME ( HOUR FORMAT AS 0100-1am,0200-2am.......1300-1pm,1400-2pm.....2400).
But the problem is its going just after the table1 START_DATE and getting me the weekend day based on start date, but when i join the tables the problem is with the END_INTV_TIME, the recods start at 1000 (10am) (bin_data_id =1037804) so according to my logic the weekend records will be 48 records from the first record, but i want to take into consideration the END_INTV_TIME as well when its (0100 1am) then my weekend starts ie(1037843 bin_data_id) instead my weekend record is coming from 1037852 (1000 10am) ,
I have a form which has three detail portions. I want that when I press SAVE, it should insert data in two tables & then run the specific code & then insert data in other two tables.
I am using Developer 6i. Couldn't find out the proper trigger or related thing.