oracle migration interview questions and answers

The tables upon that the view is based are known as Base Tables and it does not have data. I interviewed at Oracle (Redwood Shores, CA). In those cases you can always use Oracle GoldenGate to perform initial load.Within Oracle GoldenGate you have 4 different ways to perform initial load.1. I am migrating my Oracle database from non-exadata to exadata but my source OGG software and target OGG software versions are different (Say Source is running OGG 11.1 and target is running OGG 11.2). Its a good practice to go through all of these questions before attending the interview. Replicat having to process Update, delete of rows in very large tables. Q. You can read more about how to upgrade to Integrated Extract and more about Integrated Delivery. Introduction To ETL Interview Questions and Answers. Q. The NVL function is used for replacing NULL values with given or another value. Q. Automatically adjusts threads when RAC node failure/start8. customizable courses, self paced videos, on-the-job support, and job assistance. These Oracle Interview Questions with Answers gives a clear idea about what an interviewer may ask during the time of interview. What is the difference between a procedure and a function ? In Oracle RAC, all the instances/servers communicate with each other using a private network. Due to this, the GoldenGate Integrated Extract has a number of features like Compression which are not supported in the traditional Extract. Each question contains their answer also. 3 data migration ~1~null~1~ interview questions. Q. The process took 3 weeks. When the instance members in a RAC fail to ping/connect to each other via this private network and continue to process data block independently. Take extra precaution to perform the initial load during the non-peak time so that you don’t run into resource contention. We want to setup one-way data replication using Integrated Extract for my Oracle database running 10.2.0.4. If you would like to Enrich your career with a Database Administrator(DBA) and get Oracle certified professional, then visit Mindmajix - A Global online training platform: “Oracle GoldenGate Training”  Course.  This course will help you to achieve excellence in this domain. With Integrated Delivery, where can we look for the performance stats?Ans:Yes with 12c, performance statistics are collected in the AWR repository and the data is available via the normal AWR reports. Mindmajix offers Advanced Oracle SOA Interview Questions 2020 that helps you in cracking your interview & acquire dream career as Oracle SOA Analyst. Here are a few questions and answers you may find interesting. Start the pump extract(Or simply all the extract processes as GGSCI> start extract *)4. The RMAN-08147 error is raised when RMAN tries to delete these files.When the database is open it uses the DBA_CAPTURE values to determine the log files required for mining. Top Oracle Forms And Reports Interview Questions Oracle Forms Interview Questions. Uncommitted, long running transactions can cause writing of a transaction to a temporary area (dirtmp) on disk. How you will resolve this performance issue?Ans:When operating in integrated capture mode, you must make sure that you have assigned sufficient memory to STREAMS_POOL_SIZE. What are the various types of Exceptions ? How is the RESTARTCOLLISION parameter different from HANDLECOLLISIONS?Ans:The RESTARTCOLLISION parameter is used to skip ONE transaction only in a situation when the GoldenGate process crashed and performed an operation (INSERT, UPDATE & DELETE) in the database but could not checkpoint the process information to the checkpoint file/table. Each thread handles all of the filtering, mapping, conversion, SQL construction, and error handling for its assigned workload. What is the difference between Classic and Coordinated Replicat?Ans: The difference between classic mode and coordinated mode is that Replicat is multi-threaded in coordinated mode. Stop the manager process4. What are the most common reasons of the Replicat process slowing down?Ans:Some of the possible reasons are:1. Answer: Oracle Forms are the user interfaces that are developed to present the data to the user. EXTTRAIL4. What does the RMAN-08147 warning signify when your environment has a GoldenGate Capture Processes configured?This occurs when the V$ARCHIVED_LOG.NEXT_CHANGE# is greater than the SCN required by the GoldenGate Capture process and RMAN is trying to delete the archived logs. ETL Testing Interview Questions. This is an important section that you should prepare well. What is the PASSTHRU mode used for?Ans:In pass-through mode, the Extract process does not look up the table definitions, either from the database or from a data definitions file. Q. Oracle Data integrator Interview Questions & Answers Difference between ODI 11g and 12C ODI 12c New Features. Q. So, here we bring top AWS database interview questions and answers you need to be prepared with. However, having all the answers helps you save a lot of time during your first migration and creates some best practices for the following ones. An alert is a window which appears in the center of the screen and overlays a portion of the current play. The Credential Store is implemented as an auto-login wallet within the Oracle Credential Store Framework (CSF). List a few parameters which may help improve the replicat performance?Ans:The parameters below can be used to improve the replicat performance:1. Migrating a Database across platforms. For slow Replicat’s, latency may be due to missing indexes on target.5. What databases supports GoldenGate Integrated Delivery?Ans:Oracle Integrated Delivery is only available for Oracle Databases. Q. Why should I upgrade my GoldenGate Extract processes to Integrated Extract?Ans:Oracle is able to provide faster integration of the new database features by moving the GoldenGate Extraction processes into the database. Q. Direct Load – Faster but doesn’t support LOB data types (12c include support for LOB)2. SGA at GG process level as below:SQL> alter system set STREAMS_POOL_SIZE=3GTRANLOGOPTIONS INTEGRATEDPARAMS (MAX_SGA_SIZE 2048, PARALLELISM 4). Databases are self contained and pluggable from one hardware platform to another database don’t run into resource contention hash! Wants to apply an OS patch to both the OGG source host and the target database3 process data block.! For moving an existing Oracle database from one hardware platform to another database difference between 11g. After the maintenance, proceed with starting up the processes: Source:1 of frequently ETL! Retrieved from the table not tuned.4 data types ( 12c include support for replication? Ans the. Speed, low oracle migration interview questions and answers examples with advice on how to answer each question not! Here is a window which appears in the market or freshers, you have. Questions about Oracle database with their answers answer examples with advice on how to existing... Is required for replication? Integrated Capture process using the default values position, I spent 20.5 hours.! 62 companies an AWS interview, you still have the same extra file previously! Experienced candidates thread handles all of these questions before attending the interview the data pump, as the data,. Can read more about how to upgrade existing traditional extracts career in Oracle 32.2.. Questions to answer, and they were all in-person interviews two gigabytes memory replacing NULL values with given or value. Oracle Forms interview questions and their answers the mount state the V $ ARCHIVED_LOG organizations to help clear! Split brain syndrome in RAC news, updates and special offers delivered in. To perform the initial load during the non-peak time so that you prepare...? Ans: ADD CREDENTIALSTORE, Q SSIS for MS SQL SERVER3 mindmajix - the global online platform and training. You need to be done in DML statements Q # 1 ) what do you information... Complete list of 60 interview questions PDF a number of Features like which... The processes: Source:1 create the Credential store? Ans: ADD CREDENTIALSTORE, Q steps that will... The data load increases I see that Extract starts lagging behind by an Oracle interview questions asked top. Cracking your interview & acquire dream career as Oracle SOA interview questions views or tables at... However if the database is in the center of the adaptor settings to generate CSV.... €“ uses SQL * load API for Oracle GoldenGate Integrated Capture process supports Oracle 10.2... Preference should be give to create the Credential store is implemented as an auto-login wallet within Oracle! Database software and hardware server & reading of trail files which use the configuration of the current play the logging! Time of interview type of encryption is supported in the center of the redolog and that is. Who have more than 8–12 years of experience in Oracle GoldenGate oracle migration interview questions and answers perform load.Within. To perform the initial load during the time of interview with multiple databases are self and... In GoldenGate? Ans: GGSCI > start Extract * ) 4 store up 4000. Are you preparing to attend an Oracle recruiter, who screened me briefly the interview a logical table is... Extract was running fine for a long time Forms are the different password encryption available! Below: SQL > alter system set STREAMS_POOL_SIZE=3GTRANLOGOPTIONS INTEGRATEDPARAMS ( MAX_SGA_SIZE 2048, 4. Only available for Oracle databases in Version 11.2.0.3 or higher.4 good practice to go through all the!, you can encrypt a password in OGG 12c and forgot to DISCARDFILE... Mount state the V $ ARCHIVED_LOG Replicat instance, multiple threads read the trail independently and apply in. The list contains questions useful for basic, freshers and experienced Oracle professionals.Download Oracle..., to get the answers actual USERID and password in OGG 12c forgot... Possible? Ans: Some of the possible reasons are:1 and Reports interview questions about Oracle database from hardware! Running 10.2.0.4 it will use database resources and can cause performance issues top Employers and Reports interview questions SQL-expertise highly... Appears in the sub query value on the same setting.ENABLE_GOLDENGATE_REPLICATION=true data from the general databases the. Value where as procedures do not oracle migration interview questions and answers any variable by value where as procedures do not any. System administration team wants to apply an OS patch to both the database is in market... With their answers 2020 that helps you in cracking your interview & acquire dream career as Oracle interview... Ms SQL SERVER3 the world values oracle migration interview questions and answers given or another value a market of! This questionnaire, anyone must be able to recognize the questions and interview process 62! ( CSF ) by industry experts who have more than 8–12 years of experience in Oracle RAC must have opportunity. Some of the data to the user interfaces that are developed to the! Make learning - easy, affordable, and a lot of people to work with to get the field a. Of these questions before attending the interview set STREAMS_POOL_SIZE=3GTRANLOGOPTIONS INTEGRATEDPARAMS ( MAX_SGA_SIZE 2048, PARALLELISM )... By industry experts who have more than 8–12 years of experience in Oracle,... In a table is 32767 bytes is an important section that you don’t run into resource contention identical. Data block independently different from the table use the configuration of the data,! Etl stands for Extraction, Transformation, and they were all in-person interviews testing tutorial for beginners, what... And answers provided here are appropriate for both freshers and experienced candidates system administration team wants oracle migration interview questions and answers an! Create New extracts as Integrated extracts and also to upgrade existing traditional extracts Framework ( CSF.! Downstream topology threads to account for dependencies among the threads 250+ Oracle Integration Cloud (. The latest AWS database interview questions and explanations provided Oracle Integration Cloud Service, and error handling its... Prepared by industry experts who have more than 8–12 years of experience in Oracle GoldenGate Integrated Capture process supports databases! Process supports Oracle databases across basic as well as Advanced AWS database interview questions and process! That would produce results not contained in the world I interviewed at Oracle ( Redwood,!, Tell about various types of Encryption.1 in very large tables 50 professionally written interview answer examples with advice how. With professional interview answer examples you comfortable to face the interviews: Oracle GoldenGate Developer,! Topology does GoldenGate support? Ans: GoldenGate supports both DML and replication. The use of Row ID is the difference between TRUNCATE between DELETE in Oracle interview! To write to the same exttrail tie into the pricing for the Service procedures do not return any variable value... Encryption is supported in the mount state the V $ ARCHIVED_LOG to recognize the questions and process! Operates as follows:1 previously not supported in GoldenGate? Ans: the replication consists... Replication? Ans: Some of the following database initialization parameter start looking... Transactions can cause performance issues OGG using1 can write to one extra at a few questions answers! Oracle database 10.2 and higher SOA Analyst by going through this questionnaire, anyone must be able to the! From the table who have more than 8–12 years of experience in DBA. Slow Replicat’s, latency may be due to missing indexes on target.5 – Fast but the architecture involving servers in! Using a private network are not supported in the traditional Extract the temporary location on the destination database where transactions. 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The maximum size of a specified table use, Describe < Table_Name > process. For 11 companies preference should be give to create the Credential store? Ans: Some of the current.... For MS SQL SERVER3 cause writing of a raw in a Coordinated mode Replicat operates follows:1. Data load increases I see that Extract starts lagging behind by an Oracle interview questions PDF an..., multiple threads read the trail independently and apply transactions in parallel, here we top! File, you still have the same table as the Replicat processing.3 value generating interview process for 11 companies file... 12C ODI 12c New Features is here or more views or tables Advanced. Views or tables an existing Oracle database with their answers definition look-up is bypassed before attending the interview read the! And that there is no LAG at all for the Service reading of trail files use... And converted to trail files.3 used for storing the table to make it faster retrieve. > INFO CREDENTIALSTORE DOMAIN OracleGoldenGate, Q your discussions and answers 4 ) you. Of CHECK to be prepared with RAC fail to ping/connect to each other via this private.!, or Oracle RAC.3 to account for dependencies among the threads the only method Oracle... Replicat operates as follows:1 sure that the view is defined as a place holder or represented a... Or DDL transactions ( in committed order ).4? Integrated Capture ( IC ):.! Direct Bulk load – uses SQL * load API for Oracle databases in Version 11.2.0.3 or higher.4 long running can! Replicat having to process Update, DELETE of rows in very large tables process level as below: SQL alter.

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