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Tech Mahindra Interview Questions
Questions Answers Views Company eMail

What are possible key words, we can use to declare a class?

2 1595

Carnot cycle

2 2602

How does final modifier work?

1 1706

i have multiple .csv files in a unix directory. every file is having variable names as header.even for empty file also. suppose take 3 files a.csv b.csv c.csv a.csv contains data as name;age,salary; raja;34;4000; ravi;33;5000; kumar;25;3000; b.csv contains data as name;age,salary; ajay;40;4500; and c.csv contains name;age,salary; (only headers) Now i want to import and append all these files in to a single dataset. i tried infile statement with *.csv to import all at a time. but i m not getting correct data. please help me . its urgent. thank you in advance

2 1913

i have some csv files in a directory which have sub-directories also. now how can i merge all .csv files in to one with a single header. for example: have some 4 files. 1.csv--------name,age,sal abc,25,4000 2.csv--------name,age,sal vgd,32,3500 3.csv--------name,age,sal hfg,20,5000 4.csv--------name,age,sal asd,15,2000 now my output file should be like 5.csv----------name,age,sal abc,25,4000 vgd,32,3500 hfg,20,5000 asd,15,2000 and please explain the code for me. as i am new to scripting. thank you in advance

894





what is stacked chart , Bar chart, Column chart?

1 1527

What is the more accurate formula to convert wet concrete to dry aggregate instead of the 54% method?

885

Why neutral cable carry current.

831

what is system testing? explain with an example.

1 1908

What is Test Design ?( Urgent) and Test Design for Printer?

804

What is good customer service and give me an example?

826

if i have a query as flat file how can we load data to target table

368

How. To pass the entrance test

1 725

C language questions for civil engineering

477

where you wants to see you after 5 year?

1 765

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Un-Answered Questions

Write a function expand(s1,s2) that expands shorthand notations like a-z in the string s1 into the equivalent complete list abc...xyz in s2 . Allow for letters of either case and digits, and be prepared to handle cases like a-b-c and a-z0-9 and -a-z. z-a:zyx......ba -1-6-:-123456- 1-9-1:123456789987654321 a-R-L:a-R...L a-b-c:abbc

3321


What are the various diagnostic operators available in Apache Pig?

144


what is puchase life cycle?

1064


RRB exam qustions.

970


Debenture,Mutual Fund& bonds Types?

2167






What is Children?

1


what is the diffrence betwen primary pumps and secondary pumps in aircoditioning field

932


I need HT sphere gap calibration table. Can any body help me.

872


what is meant by motor startup supervision & motor load jam protection ?

4083


How many scripts did you have?

970


How database extend?

588


What course have you applied to study at London School of Arts?

777


How to calculate fault level of 11 KV system

631


What is $q service and when to use it?

880


Explain how and when a DNS request is solved when a user tries to surf to the site www.abcdeg.in .Assume the user machine uses a local name server and sits on another network other than www.abcdef.in.

3313






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