JPAL Interview Questions and Answers for Experienced

Nothing much just some idiotic questions. office has no member strength, they just call and make candidate wait for 4 hours and recruit referred candidates

Q1. Even after attending all queries they did not bother to select and inform and selection process starts based on references.
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Q2. Reporting, analysis
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Q1. Installation and upgradation steps
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Q2. Patching and performance tuning
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Q1. Table space is full what action need to take
Ans. 
Free up space by deleting unnecessary data or increasing table space size.
• Identify which table space is full

• Check if there are any unnecessary data that can be deleted

• Increase the size of the table space if necessary

• Consider partitioning the table to distribute data across multiple table spaces
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Q2. Datafile addition to tablespace
Ans. 
Adding a datafile to a tablespace
• Use ALTER TABLESPACE statement to add datafile

• Ensure enough disk space is available

• Monitor tablespace usage regularly

• Example: ALTER TABLESPACE users ADD DATAFILE '/u01/app/oracle/oradata/db1/users02.dbf' SIZE 50M;
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Q3. How to add datafile to tablespace
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To add a datafile to a tablespace:
• Identify the tablespace where the datafile needs to be added

• Create a new datafile using the 'CREATE DATAFILE' command

• Add the new datafile to the tablespace using the 'ALTER TABLESPACE' command

• Ensure that the new datafile is of the correct size and location
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Q1. Tell me about you
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Q2. Basically every question asked is related to you given project
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I waa given telecom market in indua

Q1. Tableau difference between blend &join
Ans. 
Blend combines data from different data sources in a single view, while join combines data from the same data source.
• Blend is used when data comes from different data sources, join is used when data comes from the same data source

• Blend creates a relationship between data sources without actually merging the data, join merges the data based on a common field

• Blend can be used to combine data from different databases like...read more
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Q1. SQL-related questions working of self join and what will be used in case of 2nd max
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Q1. Basic details as to why looking for a change
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Q1. Intermediate questions for tableau, SQL
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Q1. Managerial interview
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Q1. Salary negotiation
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Q1. Tell me about tableau architecture
Ans. 
Tableau architecture is a visual analytics platform that helps users to understand data through interactive visualizations.
• Tableau consists of three main components: Data Connection, Data Engine, and VizQL Server.

• Data Connection allows users to connect to various data sources such as databases, spreadsheets, and cloud services.

• Data Engine processes and optimizes data queries for faster performance.

• VizQL Server translat...read more
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