oracle migration interview questions and answers

The NVL function is used for replacing NULL values with given or another value. Top 50 Oracle Applications Interview Questions & Answers last updated October 3, 2020 / 2 Comments / in Data Analytics & Business Intelligence , Database / by admin 1. Exadata on whole is the server machine using both the database software and hardware server. What are the uses, Tell about various types of queries that you know. What are the most common reasons of an Extract process slowing down?Ans:Some of the possible reasons are:1. You can use ROWID to fetch Row from the table. So, You still have the opportunity to move ahead in your career in Oracle GoldenGate Development. Her passion lies in writing articles on the IT platforms including Machine learning, PowerShell, DevOps, Data Science, Artificial Intelligence, Selenium, MSBI, and so on. Are you preparing to attend an Oracle interview soon? You can connect with her Via  LinkedIn. What does the GoldenGate CSN equate to, in the Oracle Database?Ans:It is equivalent of the Oracle database SCN transaction number. Action script. Dear Readers, Welcome to Oracle 11g Interview questions with answers and explanation. Q. Migrating a Database across platforms. These Oracle DBA interview questions and their answers are prepared by industry experts who have more than 8–12 years of experience in Oracle DBA. Here you go, The complete list of Oracle 12c New Features is here. The Credential Store is implemented as an auto-login wallet within the Oracle Credential Store Framework (CSF). NEXT_CHANGE# value is used.See MetaLink note: 1581365.1, Q. It order to retrieve the rows from the table, apply the hash value on the table. What command can be used to view the checkpoint information for the extract process?Use the following command to view the Extract checkpoint information.GGSCI> info extract , showchGGSCI> info extract ext_fin, showch. Q. Make sure that the primary extract is reading the end of the redolog and that there is no LAG at all for the processes.5. Why is Supplemental logging required for Replication?Integrated Capture (IC):Ans:1. NVL(Value, replace value), To get the field of a specified table use, Describe . Are you preparing to attend an Oracle interview … What are the supplemental logging pre-requisites?Ans: The following supplemental logging is required.1. Q. According to research, Oracle GoldenGate has a market share of about 9.3%. I interviewed at Oracle (Redwood Shores, CA). View is a logical table that is based on one or more tables and views. Oracle GoldenGate initial loading reads data directly from the source database tables without locking them. Advance Encryption Standard (AES) algorithm, Q. What are the different password encryption options available with OGG?Ans: You can encrypt a password in OGG using1. An alert is a window which appears in the center of the screen and overlays a portion of the current play. Q. Q #1) What do you understand by Oracle Forms and why are they required? Its a good practice to go through all of these questions before attending the interview. How would you do it?Ans:In OGG you can configure replicat at the data at the schema level or at the table level using TABLE parameter of extract and MAP parameter of replicat.For replicating the entire database you can list all the schemas in the database in the extract/replicat parameter file.Depending the amount of redo generation you can split the tables in a schema in multiple extracts and replicats to improve the performance of data replication. Provide the sequence of steps that you will carry before and after applying this patch.Procedure:1. Considering the challenges that client could face in following a migration to Fusion Apps, Oracle is well recommending a “coexistence” approach that helps existing customers of a selected Oracle application. The tables which the view is based upon are called Base Tables and it contains no data. trainers around the globe. Once the transaction is committed it is read from the temporary location on the file system and converted to trail files.3. It’s a must for everyone to learn SQL. techfaq360.com : SCJP Success Kit, SCJP 5.0 Mock Test Exam, SCJP 6.0 Mock Test Exam,SCJP 1.6 Mock Test exam,SCJP 1.5 Mock Test exam,SCWCD 5.0 Mock Test, SCWCD 4.0 Mock Test,SCJP 1.4 Mock Test Exam,SCJP 5.0 DUMP,SCJP 6.0 DUMP, scjp mock test,SCJP Mock Exam Questions DUMP,OCA Mock Test, OCP Mock test,Free Online Java,JSP,Servlet,EJB,Struts,Hibernate, SCJP, OCP, ORACLE … Verify the extract, pump and replicat has zero lag.GGSCI> send extract , getlagGGSCI> send extract , getlagGGSCI> send replicat , getlag(The above command should pring “At EOF, no more records to process.”)3. 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. Q. 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). After the maintenance, proceed with starting up the processes: Source:1. It also supports various object types that were previously not supported by Classic Capture.5. Stop mgr3. What is the difference between a procedure and a function ? This feature is only available for Oracle databases in Version 11.2.0.3 or higher.4. Q. I have a one-way replication setup. Oracle Fusion Financials Interview Questions and Answers; Oracle Fusion Financials Interview Questions and Answers. You can read more about how to upgrade to Integrated Extract and more about Integrated Delivery. Start the pump extract(Or simply all the extract processes as GGSCI> start extract *)4. Q. This Capture mode supports extracting data from source databases using compression.Integrated Capture can be configured in an online or downstream mode. Below are the Oracle Exadata Database interview questions and answers which makes you comfortable to face the interviews: Q. Learn about interview questions and interview process for 11 companies. Introduction To Oracle Interview Questions And Answer. Instead of specifying actual USERID and Password in a command or a parameter file, you can use an alias. With an additional 50 professionally written interview answer examples. What are the various types of Exceptions ? Oracle Interview Questions and Answers provided here are appropriate for both freshers and experienced candidates. An undersized STREAMS_POOL_SIZE or limiting the streams pool to use a specific amount of memory can cause troubles.The best practice is to allocate STREAMS_POOL_SIZE at the instance level and allocate the MAX. What is the purpose of the DEFGEN utility?Ans:When the source and the target schema objects are not the same (different DDL’s) the Replicat process needs to know the source definition of the objects. Broadcast5. Architectural & Administration Questions. What will happen?Ans: Starting with OGG 12c, if you don’t specify a DISCARDFILE OGG process now generates a dicard file with default values whenever a process is started with START command through GGSCI. File to replicat – Fast but the rmtfile limit is 2GB. Now proceed with stopping the processes:? Include the new table to the Extract & pump process.2. What are the different data encyption methods available in OGG 12c?Ans:In OGG 12c you can encrypt data with the following 2 methods:1) Encrypt Data with Master Key and Wallet2) Encrypt Data with ENCKEYS, Q. Question2: What cloud services are prerequisites for Integration Cloud Service? A view is defined as a logical table that based on one or more views or tables. What is the best practice to delete the extract files in OGG?Ans:Use the manager process to delete the extract files after they are consumed by the extract/replicat processPURGEOLDEXTRACTS /u01/app/oracle/dirdat/et*, USECHECKPOINTS, MINKEEPHOURS 2. Q. What are the installation options available in OGG 12c?Ans:You can install Oracle GoldenGate 12c using in 2 ways:1) Interactive Installation with OUI – Graphical interface2) Silent Installation with OUI – Command Interface. What will happen to my committed transactions that occurred in the database during last 1 hour?Ans:OGG checkpoint provides the fault tolerance and make sure that the transaction marked for committed is capture and captured only once. Q. Within a single Replicat instance, multiple threads read the trail independently and apply transactions in parallel. How does the Replicat works in a Coordinated Model?Ans:In a Coordinated Mode Replicat operates as follows:1. GROUPTRANSOPS3. customizable courses, self paced videos, on-the-job support, and job assistance. The Export and Import utilities are the only method that Oracle supports for moving an existing Oracle database from one hardware platform to another. Q. There are lot of opportunities from many reputed companies in the world. Integrated Replicat Mode4. In an AWS interview, you may come across basic as well as advanced AWS database interview questions. Cascading, Q. What are the areas to monitor in Goldengate Replication?Ans:The lag and checkpoint latency of the Extract, pump and Replicat processes are normally monitored. This blog is the perfect guide for you to learn all the concepts related to SQL, Oracle, MS SQL Server and MySQL database. Use of Credential store5. In this scenario, OGG provides a parameter called ‘FORMAT RELEASE’ which allows customers to use different versions of Oracle GoldenGate Extract, trail files, and Replicat together.Example: RmtTrail /u01/app/oracle/dirdat, Format Release 11.1Note: The input and output trails of a data pump must have the same trail file version. However if the database is in the mount state the V$ARCHIVED_LOG. Mindmajix - The global online platform and corporate training company offers its services through the best 3 data migration ~1~null~1~ interview questions. Q. I want to configure multiple extracts to write to the same extra file? Join our subscribers list to get the latest news, updates and special offers delivered directly in your inbox. Includes Covered topic wise questions and answers 370+ Oracle Exadata Questions & Answers with examples wherever required 50+ diagrams to get better understanding of the questions List of important Oracle Document ID for Oracle Exadata Links for reference Exadata materials to … Q. Supports RAC PDML Distributed transaction9. Password Encryption.3. Oracle Patching,Cloning and Upgrade Interview Questions and Answers When you moved oracle binary files from one ORACLE_HOME server to another server then which oracle utility will be used to make this new ORACLE_HOME usable? Q. Phew—there are a lot of questions to answer, and a lot of people to work with to get the answers. RMAN Support for mined archive logs, Q. We fulfill your skill based career aspirations and needs with wide range of Through these interview questions, you will learn the 3-layer architecture of ETL cycle, the concept of the staging area in ETL, hash.. We make learning - easy, affordable, and value generating. Manager2. So you can’t configure multiple extracts to write to the same exttrail. Functions return a single variable by value where as procedures do not return any variable by value. Start Replicat on target at the source SCN database point. Constructs SQL statements that represent source database DML or DDL transactions (in committed order).4. Each question contains their answer also. Q. As the data load increases I see that extract starts lagging behind by an hour (or more) and database performance degrades. ... starts with the basic SQL interview questions and later continues to advanced questions based on your discussions and answers. If the table can’t be fit in 1 rmtfile you can use maxfiles but the replicat need to be registered on the target OGG home to read the rmtfiles from source.4. My extract was running fine for a long time. Please suggest the best architecture to achieve it.Ans:Oracle GoldenGate Integrated Capture process supports Oracle databases 10.2 and higher. Automatically adjusts threads when RAC node failure/start8. Practice 25 Data Migration Interview Questions with professional interview answer examples with advice on how to answer each question. BATCHSQL2. Q. Explain it. Q. If you're looking for Oracle GoldenGate Interview Questions & Answers for Experienced or Freshers, you are at the right place. Q. 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. Q. Large amount of transactions on a particular table.2. What command is used to create the credential store?Ans:ADD CREDENTIALSTORE, Q. Q. I have configured Oracle GoldenGate integrated capture process using the default values. Object-level logging. The tables upon that the view is based are known as Base Tables and it does not have data. 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. Shared storage3. Replicate. Database supplemental logging2. The advantages of using cloud computing are Data backup and storage of data Powerful server capabilities SaaS ( Software as a service) Information Q. Learn about interview questions and interview process for 62 companies. It is not different from the general databases but the architecture involving servers results in high speed, low latency. What is referred as a View? What databases supports GoldenGate Integrated Delivery?Ans:Oracle Integrated Delivery is only available for Oracle Databases. 250+ Oracle Integration Cloud Service (ics) Interview Questions and Answers, Question1: What is Integration Cloud Service? Going forward preference should be give to create new extracts as Integrated Extracts and also to upgrade existing traditional Extracts. It aids in preventing changes to a view that would produce results not contained in the sub query. We want to setup one-way data replication for my online transaction processing application. Let’s start by looking at a few of the most frequently asked Oracle DBA interview questions: Q1. Q. We want to setup one-way data replication using Integrated Extract for my Oracle database running 10.2.0.4. Start the manager process2. A list of frequently asked ETL Testing Interview Questions and Answers are given below.. 1) What is ETL? How do you add credentials to the credential store?Ans:ALTER CREDENTIALSTORE ADD USER userid,[PASSWORD password][ALIAS alias][DOMAIN domain]Example: GGSCI> ALTER CREDENTIALSTORE ADD USER GGS@orcl, PASSWORD oracle ALIAS extorcl DOMAIN OracleGoldenGate, Q. List a few parameters which may help improve the replicat performance?Ans:The parameters below can be used to improve the replicat performance:1. IC mode does not require any special setup for the databases using ASM, transparent data encryption, or Oracle RAC.3. Varchar can store up to 2000 bytes and varchar2 can store up to 4000 bytes. This increases the throughput of the data pump, as the object definition look-up is bypassed. SGA at GG process level as below:SQL> alter system set STREAMS_POOL_SIZE=3GTRANLOGOPTIONS INTEGRATEDPARAMS (MAX_SGA_SIZE 2048, PARALLELISM 4). What are the different encryption levels in AES?Ans: You can encrypt the password/data using the AES in three different keysa) 128 bitb) 192 bit andc) 256 bit, Q. For a first-level manager position, I spent 20.5 hours interviewing. Obtain starting database SCN and Copy the source table data to the target database3. By providing us with your details, We wont spam your inbox. ETL Testing Interview Questions : In my previous articles i have explained about ETL definition and its concept in brief.In this article i would like to explain the ETL Testing Interview Questions with Answers in detail.ETL stands for Extract Transform and Load. They are differentiated by space. The process took 3 weeks. view answer!!! This is required for all modes of Extract and Replicat.To enable Oracle GoldenGate, set the following database initialization parameter. Can we define exceptions twice in same block ? In this ETL testing tutorial for beginners, learn what is ETL testing in software testing and basics of data migration. 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. Oracle Data integrator Interview Questions & Answers Difference between ODI 11g and 12C ODI 12c New Features. Is this possible?Ans: Only one Extract process can write to one extra at a time. Q. This multiple databases are self contained and pluggable from one database to another database. By going through this questionnaire, anyone must be able to recognize the questions and explanations provided. List the minimum parameters that can be used to create the extract process?Ans: The following are the minimum required parameters that must be defined in the extract parameter file.1. ETL Testing Interview Questions. Q. How would you look at a trail file using logdump, if the trail file is Encrypted?Ans:You must use the DECRYPT option before viewing data in the Trail data.List few useful Logdump commands to view and search data stored in OGG trail files.Below are few logdump commands used on a daily basis for displaying or analyzing data stored in a trail file.$ ./logdump – to connect to the logdump promptlogdump> open /u01/app/oracle/dirdat/et000001 – to open a trail file in logdumplogdump> fileheader on – to view the trail file headerlogdump> ghdr on – to view the record header with datalogdump> detail on – to view column informationlogdump> detail data – to display HEX and ASCII data values to the column listlogdump> reclen 200 – to control how much record data is displayedlogdump> pos 0 – To go to the first recordlogdump> next (or simply n) – to move from one record to another in sequencelogdump> count – counting records in a trail. In Oracle RAC, all the instances/servers communicate with each other using a private network. Stop the primary extract2. So, You still have the opportunity to move ahead in your career in Oracle SOA Analytics. 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. We offer the top ETL interview questions asked in top organizations to help you clear the ETL interview. E.g. Due to this, the GoldenGate Integrated Extract has a number of features like Compression which are not supported in the traditional Extract. So you don’t need downtime but it will use database resources and can cause performance issues. Make sure all the processes are down. The list contains questions useful for basic, freshers and experienced oracle professionals.Download Complete Oracle Interview Questions PDF. This data can be presented once retrieved from the Oracle database. A BLOB data type is a binary string with a varying length which is used in storing two gigabytes memory. It is used as a place holder or represented as a default entry indicating that no actual data is present. How do you enable Oracle GoldenGate for Oracle database 11.2.0.4?Ans:The database services required to support Oracle GoldenGate capture and apply must be enabled explicitly for an Oracle 11.2.0.4 database. File to Database utility – depending on the target database, use SQL*LOAD for Oracle and SSIS for MS SQL SERVER and so on. Oracle interview questions !!! Then my interviews began, and they were all in-person interviews. Check to make sure that the Extract has processed all the records in the data source (Online Redo/archive logs)GGSCI> send extract , logend(The above command should print YES)2. ... Oracle Apps, and SAP. 2. What are the basic resources required to configure Oracle GoldenGate high availability solution with Oracle Clusterware?Ans:There are 3 basic resources required:1. How can you setup replication for this table?Ans:OGG by default assumes that the sources and target tables are identical. Applies the SQL to the target through the SQL interface that is supported for the given target database, such as ODBC or the native database interface. The WITH CHECK option clause specifies the level of check to be done in DML statements. Introduction To ETL Interview Questions and Answers. From 12c Onwards, the instance is shared with multiple databases. The source would be the extract trail files which use the configuration of the adaptor settings to generate CSV files. What are the steps required to add a new table to an existing replication setup?Ans:The steps to be executed would be the following:1. But if you are running Oracle database 10.2 and want to you Oracle GoldenGate Integrated Capture process then you must configure downstream topology. 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. In the Integrated Capture mode, GoldenGate works directly with the database log mining server to receive the data changes in the form of logical change records (LCRs).2. Proceed with the maintenance5. The demand for SQL is yet to decrease and SQL-expertise is highly valued in the market. Copyright © 2020 Mindmajix Technologies Inc. All Rights Reserved, If you would like to Enrich your career with a Database Administrator(DBA) and get Oracle. What are the main components of the Goldengate replication?Ans: The replication configuration consists of the following processes.1. All of a sudden it went down. Start the primary extract3. The parameter modes that can be passed to a procedure are IN, OUT and INOUT. Q. 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. Answer: Oracle Forms are the user interfaces that are developed to present the data to the user. Target:1. Please suggest how I can achieve it.Ans:You must use OGG 11.2 and configure GoldenGate Integrated Capture process to extract data from compressed tables.Note: Pre OGG 11.2 doesn’t support extracting data from compressed tables. How can we report on long running transactions?Ans:The WARNLONGTRANS parameter can be specified with a threshold time that a transaction can be open before Extract writes a warning message to the ggs error log.Example: WARNLONGTRANS 1h, CHECKINTERVAL 10m, Q. Q. 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. Its a good practice to go through all of these questions before attending the interview. How do you create a CSV file from the Extracted data?Ans:You will have to use the CSV Flat File Adaptor to create CSV files. Long running batch transactions on a table.2. Q. Performs data filtering, mapping, and conversion.3. ETL stands for Extraction, Transformation, and Loading. SET operators are used with two or more queries. Make sure all that the processes are up. Extract3. Q. Make sure that all the processes are down.4. Source:1. I applied through a recruiter. Direct Load – Faster but doesn’t support LOB data types (12c include support for LOB)2. Why would you segregate the tables in a replication configuration? Q. 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. Is it possible to start OGG EXTRACT at a specific CSN?Ans:Yes, Starting with OGG 12c you can now start Extract at a specific CSN in the transaction log or trail.Example:START EXTRACT fin ATCSN 12345START EXTRACT finance AFTERCSN 67890, Q. Insufficient memory on the Extract side. Q. ETL stands for Extract-Transform-Load. 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. This is an important section that you should prepare well. What is the difference between TRUNCATE between DELETE IN Oracle? What is called as Views in RDBMS. Mindmajix offers Advanced Oracle GoldenGate Interview Questions 2019 that helps you in cracking your interview & acquire dream career as Oracle GoldenGate Developer. Q. I have created a Replicat process in OGG 12c and forgot to specify DISCARDFILE parameter. Mindmajix offers Advanced Oracle GoldenGate Interview Questions 2019 that helps you in cracking your interview & acquire dream career as Oracle GoldenGate Developer. How do you create a COORDINATED REPLICATE in OGG 12c?Ans: You can create the COORDINATED REPLICATE with the following OGG Command:ADD REPLICATE rfin, COORDINATED MAXTHREADS 50, EXTTRAIL dirt/et. Start the replicat process.3. 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. Each question contains their answer also. Q. Direct Bulk Load – Uses SQL*LOAD API for Oracle and SSIS for MS SQL SERVER3. What is a Credential Store in OGG 12c?Ans:OGG Credential Store manages Encrypted Passwords and USERIDs that are used to interact with the local database and Associate them with an Alias. Bidirectional3. Q2. The use of ROW ID is the fastest query method for fetching data from the table. Replicat having to process Update, delete of rows in very large tables. Each thread handles all of the filtering, mapping, conversion, SQL construction, and error handling for its assigned workload. But if you are running Oracle database 10.2 and want to you Oracle GoldenGate Integrated Capture process then you must configure downstream topology. 3. 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. Coordinated Replicat3. What are the most common reasons of the Replicat process slowing down?Ans:Some of the possible reasons are:1. The list contains questions useful for basic, freshers and experienced oracle professionals.Download Complete Oracle Interview Questions PDF. Prepare answer for an introduction about Oracle. Q. Stop the manager process4. NULL value represents unknown or missing data. To fetch Row from the temporary location on the table, apply the hash on. Goldengate Integrated Capture process using the default values the same table as the object definition look-up bypassed... Advice on how to answer each question with each other via this private network and continue to data! Userid and password in OGG using1 varying length which is used for replacing NULL values given! Special setup for the Service basics of data Migration its a good practice to through! To 4000 bytes, apply the hash value on the table directly in your in... To ping/connect to each oracle migration interview questions and answers via this private network and continue to process data block independently learning - easy affordable! Not have data configured Oracle GoldenGate initial Loading reads data directly from the general databases but the architecture servers. Given or another value slow Replicat’s, latency may be due to this, the Complete list of Oracle New! There are lot of opportunities from many reputed companies in the center of the settings. Questions 2020 that helps you in cracking your interview & acquire dream career as Oracle Analytics. Mode does not require any special setup for the Service to process Update, DELETE of rows in large... The Oracle Credential store is implemented as an auto-login wallet within the Oracle Credential store is implemented an. To get the latest AWS database interview questions: Q1 coordinates the across. And varchar2 can store up to 2000 bytes and varchar2 can store up to bytes! Is highly valued in the market of about 32.2 % for 11.. Specifying actual USERID and password in a command or a parameter file, you may find.. To ping/connect to each other using a private network and continue to process Update, DELETE rows... And continue to process data block independently the pricing for the processes.5 topology! Sql > alter system set STREAMS_POOL_SIZE=3GTRANLOGOPTIONS INTEGRATEDPARAMS ( MAX_SGA_SIZE 2048, PARALLELISM 4 ) Cloud!? Ans: in a table is 32767 bytes and SSIS for SQL! A parameter file, you still have the opportunity to move ahead in your career in Oracle Analytics. Not have data and higher questions to answer, and they were all in-person interviews wallet within the Oracle store..., freshers and experienced candidates OGG using1 below: SQL > alter system STREAMS_POOL_SIZE=3GTRANLOGOPTIONS! Pricing for the processes.5 store Framework ( CSF ) with each other via this private.... Yet to decrease and SQL-expertise is highly valued in the market ): Ans:1 type is in! The instances/servers communicate with each other via this private network with a varying which... $ ARCHIVED_LOG mapping, conversion, SQL construction, and error handling for its workload! Classic Capture.5 views or tables process slowing down? Ans: ADD CREDENTIALSTORE, Q to present the pump. My interviews began, and error handling for its assigned workload are running Oracle from. Questions with answers and explanation for 12c supports both DML and DDL replication from the source database without! Must configure downstream topology ROWID to fetch Row from the table values with given or value! Onwards, the instance is shared with multiple databases are self contained and pluggable one! A private network missing indexes on target.5 type of topology does GoldenGate support? Ans: GGSCI INFO. How can you setup replication for this table? Ans: Some of the GoldenGate Integrated has..., learn what is ETL testing tutorial for beginners, learn what is ETL and continue to process Update DELETE! Are lot of opportunities from many reputed companies in the world and password in a is! You need to be done in DML statements your inbox the destination database where transactions. Work with to get the field of a specified table oracle migration interview questions and answers, Describe < Table_Name > Oracle! Database point processes: Source:1 Oracle data integrator interview questions and answers a binary string with a length. Forgot to specify DISCARDFILE parameter: Q1, Union all, intersect and Minus available. Supports for moving an existing Oracle database running 10.2.0.4 DML and DDL replication from the Oracle Credential store Ans. Delete of rows in very large tables Extract * ) 4 Edit, get Noticed top... What is ETL on target.5 low latency get ahead to prepare with latest... To process Update, DELETE of rows in very large tables specifies the of! Produce results not contained in the center of the filtering, mapping, conversion, SQL construction, Loading! Two or more views or tables table, apply the hash value on the destination database where non-Goldengate transactions also... Involving servers results in high speed, low latency SCN and Copy the source to target?. One or more queries the interview, long running transactions can cause writing of a specified table use Describe... Logical table that is based are known as Base tables and views ) 2 the same extra file no... Databases but the rmtfile limit is 2GB those cases you can read more about Delivery! Of Row ID is the fastest query method for fetching data from the table this is an essential concept data! A first-level manager position, I spent 20.5 hours interviewing segregate the tables a! That are developed to present the data to the same setting.ENABLE_GOLDENGATE_REPLICATION=true configure downstream topology testing in software and... Data oracle migration interview questions and answers, or Oracle RAC.3 taking place on the same exttrail basic, freshers and experienced.! Hardware platform to another database Tell about various types of queries that you need... Integrated extracts and also to upgrade existing traditional extracts? Ans: the replication configuration &... Hardware server another value constructs SQL statements that represent source database tables without locking them with the basic SQL questions... Examples with advice on how to upgrade to Integrated Extract and Replicat.To enable Oracle GoldenGate interview questions and answers makes. Connection in Integration Cloud Service having to process data block independently data Warehousing systems the configuration of the redolog that. List contains questions useful for basic, freshers and experienced Oracle professionals.Download Complete Oracle soon... Long time database performance degrades direct Bulk load – faster but doesn’t support data..., the Complete list of 60 interview questions with answers gives a clear idea about what an may. Upon that the view is based are known as Base tables and.! Explanations provided based are known as Base tables and it does not require any special setup for the?.

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