What are the options available to refresh snapsh

Interview Questions

What are the options available to refresh snapshots?

DATABASE Administrator (DBA) Interview Questions and Answers

78. What are the options available to refresh snapshots?

COMPLETE - Tables are completely regenerated using the snapshots query and the master tables every time the snapshot referenced. FAST - If simple snapshot used then a snapshot log can be used to send the changes to the snapshot tables. FORCE - Default value. If possible it performs a FAST refresh; Otherwise it will perform a complete refresh.

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Other Interview Questions

What is a DBA?
What DBA activities did you to do today?
What are the different modes of mounting a Database with the Parallel Server?
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Do you consider yourself a development DBA or a production DBA and why?
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Diffrence between a “where” clause and a “having” claus
Shall we create procedures to fetch more than one record?
Do View contain Data?
What are the Referential actions supported by FOREIGN KEY integrity constraint?
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Where would you look for errors from the database engine?
Compare and contrast TRUNCATE and DELETE for a table.
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What type of index should you use on a fact table?
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How would you force a log switch?
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What is the difference between a TEMPORARY tablespace and a PERMANENT tablespace?
Name a tablespace automatically created when you create a database.
When creating a user, what permissions must you grant to allow them to connect to the database?
How do you add a data file to a tablespace?
How do you resize a data file?
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How would you determine who has added a row to a table?
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Explain what partitioning is and what its benefit is.
You have just compiled a PL/SQL package but got errors, how would you view the errors?
How can you gather statistics on a table?
How can you enable a trace for a session?
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Explicit Cursor attributes
Implicit Cursor attributes
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Which date function returns number value?
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Other way to replace query result null value with a text
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What is the output of SIGN function?
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What is a SNAPSHOT LOG?
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Logical DB Structure
Tablespaces
Online & Offline TS
Schema
Index Clusters
Database Links
Data Blocks
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the difference between a soft link and a hard link?
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Explain UNION, MINUS, UNION ALL and INTERSECT?
What are the types of SQL statement?
What is a pseudo column. Give some examples?
What is difference between CHAR and VARCHAR2?
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?
What is a deadlock and Explain?
State any three mouse events system variables?
What other parts of your organization do you interact with and how?
How do you display console on a window?
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How will you copy the structure of a table without copying the data?
What is a VIEW? How to get script for a view?
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Difference between “ORACLE” and “MICROSOFT ACCESS” databases.
How to remove duplicate records from a table?
Are you a nuts-n-bolts DBA or a tools-n-props DBA
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How to run SQL script from a Unix Shell?
Talk about “Exception Handling” in PL/SQL?
Give some examples of Analytical functions
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What is On-line Redo Log?
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What are the steps involved in Database Startup?
What are the steps involved in Instance Recovery?
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You have just had to restore from backup and do not have any control files. How would you go about bringing up this database?
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What is Mirrored on-line Redo Log?
What is Full Backup?
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Give two examples of how you might determine the structure of the table DEPT.
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What are the values that can be specified for OPTIMIZER_GOAL parameter of the ALTER SESSION Command?
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How do you switch to DOS prompt from SQL prompt?
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What is clusters?
What is an Index? - How it is implemented in Oracle Database?
What is a Database instance?
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What is Statement Auditing?
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How can we implement roles?
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Auditing
Audit Trial
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What are the responsibilities of a Database Administrator?
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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?
What is WHEN-Database-record trigger?
What is a difference between pre-select and pre-query?
What are built-ins associated with timers?
What are the built-ins used for finding object ID functions?
What are the built-ins used for finding Object ID function?
Any attempt to navigate programmatically to disabled form in a call_form stack is allowed?
Use the Add_group_row procedure to add a row to a static record group 1. true or false?
Use the add_group_column function to add a column to record group that was created at a design time?
What are the various sub events a mouse double click event involves?
How can a break order be created on a column in an existing group?
What is the use of place holder column?
What is the use of hidden column?
What is the use of break group?
What is an anchoring object and what is its use?
What are the various sub events a mouse double click event involves?
What are the default parameter that appear at run time in the parameter screen?
What are the built-ins used for Creating and deleting groups?
What are different types of canvas views?
What are the different types of Delete details we can establish in Master-Details?
What is relation between the window and canvas views?
What is a User_exit?
How is it possible to select generate a select set for the query in the query property sheet?
How can values be passed between precompiler exits & Oracle call interface?
How can a square be drawn in the layout editor of the report writer?
How can a text file be attached to a report while creating in the report writer?
How can I message to passed to the user from reports?
How is possible to restrict the user to a list of values while entering values for parameters?
How can a button be used in a report to give a drill down facility?
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What are different types of images?
What is the difference between boiler plat images and image items?
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What are the triggers available in the reports?
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Why is a Where clause faster than a group filter or a format trigger?
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Where is a procedure return in an external pl/SQL library executed at the client or at the server?
What is coordination Event?
What is the difference between OLE Server & OLE Container?
What is an object group?
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At what point of report execution is the before Report trigger fired?
What are the built -ins used for Modifying a groups structure?
What is an user exit used for?
What is the User-Named Editor?
What are the Built-ins to display the user-named editor?
What is a Static Record Group?
What is a record group?
How many number of columns a record group can have?
What is a Query Record Group?
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What is a master detail relationship?
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What is a combo box?
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What are disadvantages of having raw devices?
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If you see statistics that deal with "undo" what are they really talking about?
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