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Oracle Interview Questions And Answers
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Page 28 of 95
77. What is hot backup and how it can be taken ? Taking backup of archive log files when database is open. For this the ARCHIVELOG mode should be enabled. The following files need to be backed up. All data files. All Archive log, redo log files. All control files. 78. What is the use of FILE option in EXP command ? To give the export file name. 79. What is the use of COMPRESS option in EXP command ? Flag to indicate whether export should compress fragmented segments into single extents. 80. What is the use of GRANT option in EXP command ? A flag to indicate whether grants on databse objects will be exported or not. Value is 'Y' or 'N'. 81. What is the use of INDEXES option in EXP command ? A flag to indicate whether indexes on tables will be exported. 82. What is the use of ROWS option in EXP command ? Flag to indicate whether table rows should be exported. If 'N' only DDL statements for the databse objects will be created. 83. What is the use of CONSTRAINTS option in EXP command ? A flag to indicate whether constraints on table need to be exported. 84. What is the use of FULL option in EXP command ? A flag to indicate whether full databse export should be performed. 85. What is the use of OWNER option in EXP command ? List of table accounts should be exported. 86. What is the use of TABLES option in EXP command ? List of tables should be exported. 87. What is the use of RECORD LENGTH option in EXP command ? Record length in bytes. 88. What is the use of INCTYPE option in EXP command ? Type export should be performed COMPLETE,CUMULATIVE,INCREMENTAL. 89. What is the use of RECORD option in EXP command ? |