Answer / ankush seth

three types of refreshment techniques for materialised
view
1)Fast refresh
2)Force refresh
3)Complete refresh

Answer / rajesh venati

The above one good,
There are Three Types of Refreshment Techniques in
Materialized View.
They are,

1. Fast Refresh
2. Force Refresh
3. Complete Refresh

Display the total debit counts, total credit counts, sum of total debits, sum of total credits from an employee's transaction table (a single table) containing the following columns. Transaction_number Transaction_amount Transaction_date Transaction_type --> tells if the amount is a credit or a debit. As the query alone is important, the table is left with specifying just the field's name. Pls help me with this query.

3 Answers   iNautix, Oracle,

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..........refers to the disk mirroring

2 Answers   iFlex,

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there are .......different types of serializability

1 Answers   Wipro,

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0 Answers  

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What is not in sql?

0 Answers  

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what is data integrity? : Sql dba

0 Answers  

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What are the new features in Oracle 10g. Compared to Oracle 9i?

1 Answers   Polaris,

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What are literals in sql server?

0 Answers  

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what is the syntax used for partition in tsql? : Transact sql

0 Answers  

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How do I run a sql query?

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Is subquery faster than join?

0 Answers  

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How would you go about increasing the buffer cache hit ratio? 0. Explain the difference between a hot backup and a cold backup and the benefits associated with each 1. You have just had to restore from backup and do not have any control files. How would you go about bringing up this database? 2. How do you switch from an init.ora file to a spfile? 3. Explain the difference between a data block, an extent and a segment. 4. Give two examples of how you might determine the structure of the table DEPT. 5. Where would you look for errors from the database engine? 6. Compare and contrast TRUNCATE and DELETE for a table. 7. Give the reasoning behind using an index. 8. Give the two types of tables involved in producing a star schema and the type of data they hold. 9. What type of index should you use on a fact table? 10. Give two examples of referential integrity constraints. 11. A table is classified as a parent table and you want to drop and re-create it. How would you do this without affecting the children tables? 12. Explain the difference between ARCHIVELOG mode and NOARCHIVELOG mode and the benefits and disadvantages to each. 13. What command would you use to create a backup control file? 14. Give the stages of instance startup to a usable state where normal users may access it. 15. What column differentiates the V$ views to the GV$ views and how? 16. How would you go about generating an EXPLAIN plan?

2 Answers  

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