Oracle Developer Interview Preparation Guide
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Oracle Developer Interview Questions and Answers will guide us now that Oracle Developer Suite is a suite of development tools released by the Oracle Corporation. The principal components were initially Oracle Forms and Oracle Reports, although the suite was later expanded to include JDeveloper amongst others. So learn about the Oracle Developer or get preparation for the job of Oracle Developer with the help of this Oracle Developer Interview Questions with Answers guide

58 Oracle Developer Questions and Answers:

1 :: When can Hash Cluster used?

Hash clusters are better choice when a table is often queried with equality queries. For such queries the specified cluster key value is hashed. The resulting hash key value points directly to the area on disk that stores the specified rows.
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2 :: Explain Database Link?

A database link is a named object that describes a path from one database to another.
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3 :: What are the types of Database Links?

Private Database Link, Public Database Link & Network Database Link.
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4 :: What is Private Database Link?

Private database link is created on behalf of a specific user. A private database link can be used only when the owner of the link specifies a global object name in a SQL statement or in the definition of the owner's views or procedures.
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5 :: What is Public Database Link?

Public database link is created for the special user group PUBLIC. A public database link can be used when any user in the associated database specifies a global object name in a SQL statement or object definition.
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6 :: What is Network Database link?

Network database link is created and managed by a network domain service. A
network database link can be used when any user of any database in the network specifies a global object name in a SQL statement or object definition.
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7 :: What is Data Block?

ORACLE databases data is stored in data blocks. One data block corresponds to a specific number of bytes of physical database space on disk.
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8 :: How to define Data Block size?

A data block size is specified for each ORACLE database when the database is
created. A database users and allocated free database space in ORACLE datablocks. Block size is specified in INIT.ORA file and cannt be changed latter.
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9 :: What are the components of Physical database structure of Oracle Database?

ORACLE database is comprised of three types of files. One or more Data files, two are more Redo Log files, and one or more Control files.
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10 :: What are the components of Logical database structure of ORACLE database?

Tablespaces and the Databases Schema Objects.
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