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Technical, Process related It was good. interview was mainly related to process. DBA task, responsibility It was good. interview was mainly related to pIt was good. interview was mainly related to process. DBA task, responsibilityrocess. DBA task, responsibility
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Database Administrator

Interviewed at Wipro

3.6★
Nov 7, 2015

Technical, Process related It was good. interview was mainly related to process. DBA task, responsibility It was good. interview was mainly related to pIt was good. interview was mainly related to process. DBA task, responsibilityrocess. DBA task, responsibility

Tell me about yourself? Your role as a DBA? Your Day to Day activities? What is difference between oracle SID and Oracle service name? Oracle SID is the unique name that uniquely identifies your instance/database where as the service name is the TNS alias can be same or different as SID. What are the steps to install oracle on Linux system? List two kernel parameter that effect oracle installation? Initially set up disks and kernel parameters, then create oracle user and DBA group, and finally run installer to start the installation process. The SHMMAX & SHMMNI two kernel parameter required to set before installation process. What are bind variables? With bind variable in SQL, oracle can cache queries in a single time in the SQL cache area. This avoids a hard parse each time, which saves on various locking and latching resource we use to check object existence and so on. What is the difference between data block/extent/segment? A data block is the smallest unit of logical storage for a database object. As objects grow they take chunks of additional storage that are composed of contiguous data blocks. These groupings of contiguous data blocks are called extents. All the extents that an object takes when grouped together are considered the segment of the database object. What is the difference between PGA and UGA? When you are running dedicated server then process information stored inside the process global area (PGA) and when you are using shared server then the process information stored inside user global area (UGA). What is SGA? Define structure of shared pool component of SGA?
avatar

Senior Oracle Database Administrator

Interviewed at Wipro

3.6★
Jul 1, 2018

Tell me about yourself? Your role as a DBA? Your Day to Day activities? What is difference between oracle SID and Oracle service name? Oracle SID is the unique name that uniquely identifies your instance/database where as the service name is the TNS alias can be same or different as SID. What are the steps to install oracle on Linux system? List two kernel parameter that effect oracle installation? Initially set up disks and kernel parameters, then create oracle user and DBA group, and finally run installer to start the installation process. The SHMMAX & SHMMNI two kernel parameter required to set before installation process. What are bind variables? With bind variable in SQL, oracle can cache queries in a single time in the SQL cache area. This avoids a hard parse each time, which saves on various locking and latching resource we use to check object existence and so on. What is the difference between data block/extent/segment? A data block is the smallest unit of logical storage for a database object. As objects grow they take chunks of additional storage that are composed of contiguous data blocks. These groupings of contiguous data blocks are called extents. All the extents that an object takes when grouped together are considered the segment of the database object. What is the difference between PGA and UGA? When you are running dedicated server then process information stored inside the process global area (PGA) and when you are using shared server then the process information stored inside user global area (UGA). What is SGA? Define structure of shared pool component of SGA?

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