What is Mirrored on-line Redo Log ?

Answer Posted / nishi

Mirrored on-line Redo logs are mirror or copies of actually on-line redo log files. These files are physically located on another disc and are updated if one member is updated. Mirroring the on-line Redo log files is essential to not loose data.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How to get a book from database MS access that contain 'i' charactor in it's name like internetbook or networkingbook. what will be java query for this purpose?

562


What do you understand by aggregation and atomicity?

535


What is database or database management systems (dbms)? And what's the difference between file and database? Can files qualify as a database?

474


What are the different types of languages that are available in the dbms?

599


What is difference between sql and rdbms?

500






What are the features of a database management system?

476


What do you mean by cardinality and its types?

528


What are the main features of a database?

517


How to export data from database and import into another?

456


i have all the Oracle Certification material from 1z0-001 to 1Z0-643, if required just drop me a mail to: summi4you@yahoo.co.in

1412


What is the instance of a relation?

494


What is index hunting and how does it help in improving query performance?

1491


how to retrive a data From database into the grid view..?

499


Does any body has ORACLE Certification latest Dumps on 1) Oracle - 10g DBA, 2) Oracle - 9i DBA, 3) Oracle - Internet Application Developer, 4) OCA, 5) OCP 8i to 10g DBA Upgrade, 6) Oracle - 10g,7) Other Oracle Certification, if any body has please send it to taruni_2k8@yahoo.com

2310


1. How many nodes you are using project? 2. What is configuration file? 3. What is modules partition? How it is work in project? 4. What is Environment Variable? How it is use? 5. What is sequence? 6. How do you execute parallel jobs in projects? 7. If you run a job in job sequencer individually without any comments? 8. How many jobs did in your project? 9. How to schedule the job in Data stage 7.5 X2? 10. If you have 10 jobs in PX2, shall you run all jobs at a time? 11. I have 5 jobs (1-5), I connect with each other, but I want to run from 3-5 only how? 12. What is same partition? 13. If you have 40GB hard disk in I have 30GB data how I configure the nodes for partition? 14. Did you write any code for Data stage project? 15. Did you write any code for parallel job execution in your project? 16. Will you schedule all jobs at a time? 1. What are environment variable, job parameters? 2. What is the relationship between the tables in oracle? 3. How can u create the sequence? 4. What are the client components? 5. Tell me about the Data stage administrator? 6. Tell me about the Data stage Manager? 7. What is joining? 8. What is difference between grep command and fgrep command? 9. What is run time column propagation? 10. How to open the file? 11. How do you cleanse the data in your project? 1. Using which stage raw binary converted into dataset? 2. Which stage is used to read the data into external application? 3. Can we convert dataset into raw binary 4. XML path? 5. When we use the hash partition in aggregator stage? 6. How many reject links in transformer stage? 7. Data stage debugger available in which jobs? 8. Tell me two parts of data set? 9. What is the function used for null handling in modify stage? 10. Default execution mode for exception handler? 11. Maximum exception handler allowed in sequence?

2966