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Welcome to Mindmajix - The leading global online training platform. If you're looking for Oracle PL SQL Interview Questions for Experienced or Freshers, you are. Top 50 Oracle Interview Questions and Answers . A privilege is nothing but right to execute an SQL query or to access .. Download PDF. Oracle-SQL Interview Questions And Answers in gonddetheppolad.cf for more Oracle-SQL Interview Questions And Answers to download in pdf format.
Explainitscharacteristicfeatures Typesofjoins. Workingwithmultipletables Definesubquery. Explainwithanexample Whatiscorrelatedquery? AssociativeArrays NestedTablesvs.
Varrays Explainthemethodsexistforcollections. Usersinoracle Typesofusersalocaluser,anexternaluser,oraglobaluser ExplainhowtocreateusersthroughSqlPlus. Oracledatabaseperformancetuning Explainthepurposeoftuningoracledatabase. Explaintheminbrief Whatiscostbasedoptimization? Explainthefactorthatcancausetheexecutionplanofaquerytochange Whatisindexmonitoringfeatureinoracle? Oracleadvancedreplication Whatisreplication?
Oracleforms Whatisoracleformsandwhatisitusedfor? Explainhow Canwemonitorhowfastatableisimported? Oracledatabasebackupandrecovery WhyandwhenshouldIbackupmydatabase?
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Oraclewebcache WhatistheOracleWebCache? Oraclespatial WhatisOracleSpatial? Peoplesoftonoracle WhatisaPeopleSoftdatabase? Outputisbasedontypeof Joinandwhatistobequeries AJoinisusedtocreatequeryusingtwoormoretablesand views Avariableofa compositetypecontainsoneormorescalartypes DATEstoresvaluesascentury,year,month,date,hour,minute,and second Ithasfixedupperboundsizethathastobespecified whileitisdeclared Thedatathatisstoredinthe cursoriscalledasActiveDataSet Explaintheattributesofimplicitcursor Latestanswer: Itisareferencetypewhichis quitesimilartopointerinC.
Readanswer Businessobjectinterviewquestions Latestanswer: OLAPinterviewquestions Latestanswer: Explainthe roleofbitmapindexestosolveaggregationproblems.
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Whatis candidatecheck? Get BrochureNow. Theproceduresarecalledastriggersinoracleanditrunimplicitlywhenaninsert,updateordeletestatementisbeingperformedona table.
Simple Complex. Oracleinterviewquestionsandanswers Listthecharactersticsofdatafiles. Whenitiscommitted ORWhenitisRolledback. Oracleinterviewquestions Hotbackupvs.
Important Oracle Interview Questions with Answers
Coldbackupsdoesnotrequirebeinginarchivelogmodeandthusslightperformancegainasthedatabaseisnotwritingarchivelogsto disk. ActualParameters Thevariablesorexpressionsreferencedintheparameterlistofasubprogramcallareactualparameters.
Moreoracleinterviewquestions OracleQuestion1: Differencebetweenclusteringandmirroring OracleQuestion8: Differencebetweenpagingandfragmentation OracleQuestion9: Explainwithanexample OracleQuestion Explainitsuseswithanexample OracleQuestion Purposeandsignificance OracleQuestion Explainthem OracleQuestion Itworksonlyifthedatabaseconnectionisopenanditmakes surethattheconnectionisopenwhileyouareretrievingdata.
Asthedatathatitretrievesisreadonly,itisabitfasterthananyother methodtoretrievedatafromOracle TheOracleDataAdaptersimply connectstothedatabase,retrievestheinformation,populatesthatinformationintodatasetsordatatables,andfinallydisconnectsthe connectiontothedatabase Wecanaddtheserelationsdynamicallyattheclient side withinanapplication ,torepresentmasterdetail orhierarchical information Letusseefewofthemost commonlyusedfeaturesofOracleCommandinthissection Volumesofbookswouldnotbeenoughtocovereveryaspectofperformancetuning inOracle Termsofuse FollowusonFacebook!
Flag for inappropriate content. Related titles. Jump to Page. Search inside document. Index Oracleoperators Itcanbecalledasanoptionalstructurewhichisassociated withatablefordirectaccesstotherows Indexcanbecreatedforoneormorecolumnsinatable Oraclecomposite c. Extent Oracledatatypes Itcanbedefinedasaspecificnumberofcontiguousdata blocksinsingleallocation. Oracletransaction RenameItisapermanentnameprovidedtoatableorcolumn.
Oracleoptimizer b. Oraclebackup Itisvirtualtablewhichisdefinedasastoredprocedurebasedononeormoretables. Oracledatabasetuning 5. Oracleauditing Oracleapplicationtuning Oracleprocedures Oraclefunctions Oracleloops Oracleexceptions OracleSelectintoclause Oraclestringfunctions Oraclenumericfunctions Oracledatefunctions Oracletranslateanddecode Oraclecorrelatedsubqueries Oracleunion,intersect,minus Oracleclusters Oraclesequences Oracletablespaces Oracleobjectdatatypes OracleTutorial b.
NonCorrelatedsubquery http: Itisindependentlikeaquery Coalesce value1,value2,value3, Readanswer ExplainRowlevelandstatementleveltrigger. Readanswer OracleinterviewquestionsJan04,at Readanswer Advantageofastoredprocedureoveradatabasetrigger.
Readanswer Whatarecascadingtriggers? Readanswer Oracleinterviewquestionsandanswersforfreshersandexperienced Relationaldatabase WhatisRationaldatabase? Readanswer Whatisajoin,explainthetypesofjoins?
Privileges are the rights to execute SQL statements — means Right to connect and connect. Grants are given to the object so that objects can be accessed accordingly. Grants can be provided by the owner or creator of an object. What is the maximum number of triggers that can be applied to a single table? There are no differences between the join.
Cartesian and Cross joins are same. Cross join gives cartesian product of two tables — Rows from first table is multiplied with another table which is called cartesian product. How to display employee records who gets more salary than the average salary in the department?
Your email address will not be published. For my data structure, I would keep a list that would have a line for each line in the smallest file, and I would write in this line my count. If a line is present multiple times in the file, you can count subsequent occurrences a zeroes, or mark them as X, so you know to not count them twice.
Then I read this file to load an array with the top 10 occurrences, I would put the first index in this array, and the count. Then I would use the index to go to the file and read the actual line and display it, along with the count. Then do a similar process for the LAST 10, this should be even easier. Latest Articles You are here: Oracle Quiz.
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Correct answer percentage. Number of wrong answers. Time allowed Requires timer add on. Time used Requires timer add on. Your answers are highlighted below. Question 1. Question 2. Select the number of bytes that can be stored by the varchar2. Question 3. Question 4. Question 5. Question 6. Select the command which is used for character by character substitution. Question 7. Question 8. Question 9. Which of the following is a type of Subquery.
Question Which of the following is NOT a temporal data type? Select the command which is used to delete the duplicate rows in the table. Which of the following is NOT an attribute of cursor.
How can we store pictures in the database? Select the constraint used to validate that values in the given column meet the specific criteria. Select the Oracle database object used for performance tuning.
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If you leave this page, your progress will be lost. Download PDF. You Might Like: Upto bytes. Data Manipulation Language. Distributed Manipulation Language. Dynamic Manipulation Language.Itworksonlyifthedatabaseconnectionisopenanditmakes surethattheconnectionisopenwhileyouareretrievingdata.
Siddhartha Sankar Biswas. One to Many Relationship 3.
Whatis candidatecheck? Select the number of bytes that can be stored by the varchar2. Ans: Flashback query are handle by Database Administrator only flashback queries along allows content of the table to be retrieved with reference to specific point of time by using as of clause that is flashback queries retrieves clause that is flashback queries retrieves accidental data after committing the transaction also.
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