We have fresher hunting job for 9 jobs available at present? Have you completed B.E, or M.tech? Then find your career job at wisdom jobs which will provide you with the relevant job search and the interview questions that you face during the interview session. Applied materials oracle is booming in the market and has been a big achiever burgeoning in semiconductor stocks. So, all the job seeking candidates who are interested to work as an oracle administrator, companies are looking for innovative, smart graduates with fresher or experienced who can fulfil the tasks of database administrator. Before attending the interview go through our Applied Materials oracle interview questions which will help you to get your dream job.
Question 1. What Is A System Tablespace And When It Is Created?
When the database is created in Oracle database system, it automatically generate a SYSTEM named SYSTEM tablespace. The SYSTEM tablespace contains data dictionary tables for the entire database.
Question 2. What Is The Fastest Query Method To Fetch Data From The Table?
You can use ROWID to fetch Row from the table. The use of ROW ID is the fastest query method for fetching data from the table.
Question 3. What Is Using Clause And Give Example?
The USING clause is used to specify with the column to test for equality when two tables are joined.
[sql]Select * from table1 join table2 using table1 ID[/sql]
table1 tables join with the table2 tables with the tableID.
Question 4. What Is The Purpose Of Save Points In Oracle Database?
Question 5. What Is An Oracle Index?
An index is an optional structure associated with a table to have direct access to rows, which can be created to increase the performance of data retrieval. Index can be created on one or more columns of a table.
Question 6. Explain The Function Of Optimizer In Oracle?
The optimizer determines the most efficient way to execute a SQL statement based on the kind of data in the table and the statements fired to fetch that data like indexes, full table scans, loops, joins etc. Optimizers are also used to avoid excessive I/O resources.
Question 7. What Is The Use Of Aggregate Functions In Oracle?
Aggregate function is a function where values of multiple rows or records are joined together to get a single value output.
Common aggregate functions are:
Question 8. What Is Hash Cluster?
Hash Cluster is a technique used for storing the table to make it faster to retrieve. It order to retrieve the rows from the table, apply the hash value on the table.
Question 9. What Is Hot Backup And How It Can Be Taken?
Hot backup is taking backup of archived log files when database is open. the ARCHIVELOG switch should be enabled for this to happen. Hot backup happens while the database is still being accessed by users and tables are being updated. It does not need the database to have a downtime.
Question 10. What Are The Components Of Physical Database Structure Of Oracle Database?
Components of physical database structure are given below:
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