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What are the Large object types suported by Oracle?
DATABASE Administrator (DBA) Interview Questions and Answers
(Continued from previous question...)
5. What are the Large object types suported by Oracle?
Answer1
1)bfile - Up to 4 gigabytes –> File locators that point to a read-only binary object outside of the database
2)blob - Up to 4 gigabytes. –> LOB locators that point to a large binary object within the database
3)clob - Up to 4 gigabytes. –> LOB locators that point to a large character object within the database
4)nclob - Up to 4 gigabytes. –>LOB locators that point to a large NLS character object within the database
Answer2
These are the large object type supported bye oracle
• CLOB and LONG for large fixed-width character data
• NCLOB for large fixed-width national character set data
• BLOB and LONG RAW for storing unstructured data
• BFILE for storing unstructured data in operating system files
(Continued on next question...)
Other Interview Questions
- What is a DBA?
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- What are the type of Synonyms?
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- What is a Segment?
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- Implicit Cursor attributes
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- Database Links
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- What is the diff. when Flex mode is mode on and when it is off?
- What is ROWID?
- What is a correlated subquery?
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- What do you know about subqueries?
- What is a database link?
- How to drop the index ?
- What are the different types of SQL statements?
- What are the uses of rollback segment?
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- State any three mouse events system variables?
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- What are the different types of joins?
- How will you copy the structure of a table without copying the data?
- What is a VIEW? How to get script for a view?
- What is a “trigger”?
- Explain the difference between a hot backup and a cold backup and the benefits associated with each.
- What cursor type do you use to retrieve multiple recordsets?
- What is the difference among “dropping a table”, “truncating a table” and “deleting all records” from a table.
- Difference between “ORACLE” and “MICROSOFT ACCESS” databases.
- How to remove duplicate records from a table?
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- Give some examples of Analytical functions
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- What are the different approaches used by Optimizer in choosing an execution plan?
- What does ROLLBACK do?
- What is SAVE POINT?
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- What is Tablespace Quota?
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- What is Statement Auditing?
- What are the database administrators utilities available?
- How can you enable automatic archiving?
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- How can we implement roles?
- What are the use of Roles?
- Auditing
- Audit Trial
- What is Auditing?
- What are the responsibilities of a Database Administrator?
- What is a trace file and how is it created?
- What is a profile?
- How will you enforce security using stored procedures?
- What are the dictionary tables used to monitor a database spaces?
- What are the roles and user accounts created automatically with the database?
- What are the minimum parameters should exist in the parameter file (init.ora)?
- How can we specify the Archived log file name format and destination?
- What is user Account in Oracle database?
- What dynamic data replication?
- What is Two-Phase Commit?
- How can you Enforce Referential Integrity in snapshots?
- What is a SQL * NET?
- What is a SNAPSHOT?
- What is the mechanism provided by ORACLE for table replication?
- What is snapshots?
- What are the various type of snapshots?
- Describe two phases of Two-phase commit?
- What is snapshot log?
- What are the benefits of distributed options in databases?
- What is an index? How it is implemented in Oracle database?
- What are clusters?
- What is a cluster key?
- How can we reduce the network traffic?
- Differentiate simple and complex, snapshots?
- What are the Built-ins used for sending Parameters to forms?
- Can you have more than one content canvas view attached with a window?
- Is the After report trigger fired if the report execution fails?
- Does a Before form trigger fire when the parameter form is suppressed?
- Is it possible to split the print reviewer into more than one region?
- Is it possible to center an object horizontally in a repeating frame that has a variable horizontal size?
- How do you list the files in an UNIX directory while also showing hidden files?
- How do you execute a UNIX command in the background?
- Can a formula column referred to columns in higher group?
- Can a formula column be obtained through a select statement?
- If a parameter is used in a query without being previously defined, what diff. exist between report 2.0 and 2.5 when the query is applied?
- What are the SQL clauses supported in the link property sheet?
- What is trigger associated with the timer?
- What are the trigger associated with image items?
- What are the different windows events activated at runtimes?
- When do you use data parameter type?
- What is difference between open_form and call_form?
- How would you change all occurrences of a value using VI?
- Give two UNIX kernel parameters that effect an Oracle install
- Briefly, how do you install Oracle software on UNIX.
- What is the diff. when confine mode is on and when it is off?
- What are visual attributes?
- Which of the two views should objects according to possession?
- What are the two types of views available in the object navigator (specific to report 2.5)?
- What are the vbx controls?
- What is the use of transactional triggers?
- How do you create a new session while open a new form?
- What are the ways to monitor the performance of the report?
- If two groups are not linked in the data model editor, What is the hierarchy between them?
- An open form can not be execute the call_form procedure if you chain of called forms has been initiated by another open form?
- Explain about horizontal, Vertical tool bar canvas views?
- What is the purpose of the product order option in the column property sheet?
- What is the use of image_zoom built-in?
- How do you reference a parameter indirectly?
- Is it possible to insert comments into sql statements return in the data model editor?
- Is it possible to disable the parameter from while running the report?
- When a form is invoked with call_form, Does oracle forms issues a save point?
- Can a property clause itself be based on a property clause?
- What is a timer?
- What are the two phases of block coordination?
- What are Most Common types of Complex master-detail relationships?
- What is a text list?
- What is term?
- What is use of term?
- What is pop list?
- What is the maximum no of chars the parameter can store?
- What are the default extensions of the files created by library module?
- What are the Coordination Properties in a Master-Detail relationship?
- What is an index and How it is implemented in Oracle database?
- Lot of users are accessing select sysdate from dual and they getting some millisecond differences. If we execute SELECT SYSDATE FROM EMP; what error will we get. Why?
- Give two methods you could use to determine what DDL changes have been made.
- What are the types of calculated columns available?
- Explain about stacked canvas views?
- What are the built_ins used the display the LOV?
- What is the difference between SHOW_EDITOR and EDIT_TEXTITEM?
- What are the built-ins that are used to Attach an LOV programmatically to an item?
- How do you call other Oracle Products from Oracle Forms?
- What is the main diff. bet. Reports 2.0 & Reports 2.5?
- What are the different file extensions that are created by oracle reports?
- What is strip sources generate options?
- What is the basic data structure that is required for creating an LOV?
- What is the Maximum allowed length of Record group Column?
- Which parameter can be used to set read level consistency across multiple queries?
- What are the different types of Record Groups?
- From which designation is it preferred to send the output to the printed?
- what are difference between post database commit and post-form commit?
- What are the different display styles of list items?
- Which of the above methods is the faster method?
- With which function of summary item is the compute at options required?
- What are parameters?
- What are the three types of user exits available?
- How many windows in a form can have console?
- If the maximum record retrieved property of the query is set to 10 then a summary value will be calculated?
- What are the two repeating frame always associated with matrix object?
- What are the master-detail triggers?
- What are the different objects that you cannot copy or reference in object groups?
- What is an OLE?
- Is it possible to modify an external query in a report which contains it?
- Does a grouping done for objects in the layout editor affect the grouping done in the data model editor?
- Can a repeating frame be created without a data group as a base?
- If a break order is set on a column would it affect columns which are under the column?
- Is it possible to set a filter condition in a cross product group in matrix reports?
- Do user parameters appear in the data modal editor in 2.5?
- Can you pass data parameters to forms?
- Is it possible to link two groups inside a cross products after the cross products group has been created?
- What are the different modals of windows?
- What are modal windows?
- What are the different default triggers created when Master Deletes Property is set to Non-isolated?
- What are the different default triggers created when Master Deletes Property is set to isolated?
- What are the different default triggers created when Master Deletes Property is set to Cascade?
- What is the diff. bet. setting up of parameters in reports 2.0 reports2.5?
- What are the difference between lov & list item?
- What is the advantage of the library?
- What is lexical reference?
- What is system.coordination_operation?
- What is synchronize?
- What use of command line parameter cmd file?
- What is a Text_io Package?
- What is forms_DDL?
- How is link tool operation different bet. reports 2 & 2.5?
- What are the different styles of activation of ole Objects?
- How do you reference a Parameter?
- What is the difference between object embedding and linking in Oracle forms?
- Name of the functions used to get/set canvas properties?
- What are the built-ins that are used for setting the LOV properties at runtime?
- What are the built-ins used for processing rows?
- What are built-ins used for Processing rows?
- What are the built-in used for getting cell values?
- What are the built-ins used for Getting cell values?
- A tleast how many set of data must a data model have before a data model can be base on it?
- To execute row from being displayed that still use column in the row which property can be used?
- What are different types of modules available in oracle form?
- What is the remove on exit property?
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- What are the built-ins used for finding object ID functions?
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- Any attempt to navigate programmatically to disabled form in a call_form stack is allowed?
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