Tuesday, March 04, 2008

Oracle PL/SQL SQL and DBA Interview questions and Answers

Oracle PL/SQL SQL and DBA Interview questions and Answers

What is different between TRUNCATE and DELETE?
What is the maximum buffer size that can be specified using the DBMS_OUTPUT.ENABLE function?
Can you use a commit statement within a database trigger?
What is an UTL_FILE? What are different procedures and functions associated with it?
What are between database triggers and form triggers?
What is OCI. What are its uses?
What are ORACLE PRECOMPILERS?
What is syntax for dropping a procedure and a function? Are these operations possible?
How to check if application 11i System is Autoconfig enabled ?
How to check if Oracle application 11i System is Rapid Clone enabled ?
Whats is difference between two env files in .env and APPS.env under $APPL_TOP ?
What is main concurrent Manager types.
What is US directory in $AD_TOP or under various product TOP's .
Where is Concurrent Manager log file location.
Where would I find .rf9 file, and what it dose ?
Where is appsweb.cfg or appsweb_$CONTEXT.cfg stored and why its used ?
What is Multi Node System ?
Can a function take OUT parameters. If not why?
Can the default values be assigned to actual parameters?
What is difference between a formal and an actual parameter?
What are different modes of parameters used in functions and procedures?
What is difference between procedure and function.
Can cursor variables be stored in PL/SQL tables. If answer is yes, explain how? If not why?
Can you clone from multi node system to single node system and vice versa ?
Does rapid clone takes care of Updating Global oraInventory or you have to register manually in Global OraInventory after clone ?
What is .dbc file , where its stored , whats use of .dbc file ?
What are things you do to reduce patch timing ?
How you put Applications 11i in Maintenance mode ?
Can you apply patch without putting Applications 11i in Maintenance mode ?
What are various options available with adpatch ?
ADIDENT UTILITY is used for what ?
How do you pass cursor variables in PL/SQL?
How do you open and close a cursor variable. Why it is required?
What should be the return type for a cursor variable. Can we use a scalar data type as return type?
What is use of a cursor variable? How it is defined?
What WHERE CURRENT OF clause does in a cursor?
What is different between NO DATA FOUND and %NOTFOUND
What is a cursor for loop?
What is iAS Patch ?
If we run autoconfig which files will get effected ?
What is difference between .xml file and AutoConfig ?
What is .lgi files ?
How will you skip worker during patch ?
Which two tables created at start of application Patch and drops at end of Patch ?
How to compile an Oracle Reports file ?
What is difference between AD_BUGS and AD_APPLID_PATCHES ?
What is ADSPLICE UTILITY ?
How can you licence a product after installation ?
What is MRC ? What you do as application DBA for MRC ?
What is access_log in apache , what entries are recored in access_log ? Where is default location of this file ?
Where is Jserv configuration files stored ?
Where is applications start/stop scripts stored ?
What are main configuration files in Web Server (Apache) ?
Can C driver in application patch create Invalid Object in database ?
What is dev60cgi and f60cgi ?
Why does a worker fails in Oracle Apps Patch and few scenarios in which it failed for you ?
What is difference between mod_osso and mod_ose in Oracle HTTP Server ?
What is difference between COMPILE_ALL=SPECIAL and COMPILE=ALL while compiling Forms ?
What is GSM in Oracle application E-Business Suite ?
What is FNDSM ?
What are cursor attributes?
What is difference between an implicit and an explicit cursor.
What is a cursor?
What is the purpose of a cluster?
How do you find the number of rows in a Table ?
What is a pseudo column. Give some examples?
Whats is location of access_log file ?
What is your Oracle application 11i Webserver Version and how to find it ?
What is Location of Jserv configuration files ?
What is plssql/database cache ?
Where is DATABASE/PLSSQL cache stored ?
What is *.DBC file and whats is location of DBC file ?
What is content of DBC file and why its important ?
What are few profile options which you update after cloning ?
How to retrieve SYSADMIN password ?
What is TWO_TASK in Oracle Database ?
What is GWYUID ?
Where GWYUID defined and what is its used in Oracle Applications ?
If APPS_MRC schema is not used in 11.5.10 and higher then How MRC is working ?
When you apply C driver patch does it require database to be Up and Why ?
How you will avoid your query from using indexes?
What is a OUTER JOIN?
Which is more faster - IN or EXISTS?
When do you use WHERE clause and when do you use HAVING clause?
There is a % sign in one field of a column. What will be the query to find it?
Where will you find forms configuration details apart from xml file ?
What is forms server executable Name ?
What are different modes of forms in which you can start Forms Server and which one is default ?
How you will start Discoverer in Oracle Applications 11i ?
How many ORACLE HOME are Oracle Applications and whats significance of each ?
Where is HTML Cache stored in Oracle Applications Server ?
Where is plssql cache stored in Oracle Applications ?
What happens if you don't give cache size while defining Concurrent Manager ?
There are lot of DBC file under $FND_SECURE, How its determined that which dbc file to use from $FND_SECURE ?
What is RRA/FNDFS ?
What is PCP is Oracle Applications 11i ?
Why I need two Concurrent Processing Nodes or in what scenarios PCP is Used ?
Output and Logfiles for requests executed on source Instance not working on cloned Instance
How to confirm if Report Server is Up and Running ?
What is difference between ICM, Standard Managers and CRM in Concurrent Manager ?
What is difference between SUBSTR and INSTR?
Which data type is used for storing graphics and images?
What is difference between SQL and SQL*PLUS?
What is difference between UNIQUE and PRIMARY KEY constraints?
What is difference between Rename and Alias?
What are various joins used while writing SUBQUERIES?
What is use of Applications listener ?
How to start Applications listener ?
How to confirm if Apps Listener is Up and Running ?
What is Web Listener ?
How will you find Invalid Objects in database ?
How to compile Invalid Objects in database ?
How to compile JSP in Oracle Applications ?
What is difference between ADPATCH and OPATCH ?
Can you use both ADPATCH and OPATCH in application ?

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