हिंदी

Which function returns the sum of all elements of a list?

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प्रश्न

Which function returns the sum of all elements of a list?

विकल्प

  • count()
  • sum()
  • total()
  • add()
MCQ
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उत्तर

sum()

Explanation:

The sum() function sums all elements of a list. 

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Functions in SQL
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
2022-2023 (March) Set 4

संबंधित प्रश्न

______ is used to get a specified day of the month for a given date.


Which method is used to get the row-id of the last modified row?


What will be the output of the following SQL statement? 

SELECT DAY NAME (2022-04-08) 


Which command is used to delete a table? (in SQL)


What will be returned by the given query? select day of year('2015-02-10') = ______.


What will be returned by the given query? Select length(trim("ABC Public School")) = ______.


What will be returned by the given query? SELECT RIGHT("LEFT", 2) = ______.


"COUNT" keyword belongs to which categories in Mysql?


The ______ function returns m raised to the nth power.


Name a function of MySQL used to give position of the first occurrence of a string2 in string1.


What will be returned by the given query? SELECT INSTR('INFORMATIONFORM', 'FOR') = ______.


Which of the following is not a date function?


Which function will be used to remove only the trailing spaces from a string?


Write the name of the functions to perform the following operation:

To display the specified number of characters from a particular position of the given string.


Write the name of the functions to perform the following operation:

To display your name in capital letters.


Write the output produced by the following SQL statement:

SELECT LENGTH("Informatics Practices");


Write the output produced by the following SQL statement:

SELECT    LEFT("INDIA", 3),    RIGHT("Computer Science", 4),    MID("Informatics", 3, 4), SUBSTR("Practices", 3);


Differentiate between count() and count(*) functions in SQL with appropriate examples.


Predict the output of the code given below:

s="welcome2cs" 

n = len(s)
m=""
for i in range(0, n):
       if (s[i] >= 'a' and s[i] <= 'm'):
            m = m +s[i].upper()
 elif (s[i] >= 'n' and s[i] <= 'z'):
          m = m +s[i-1]
 elif (s[i].isupper()):
     m = m + s[i].lower()
 else:
     m = m +'&'
print(m)

Which type of values will not be considered by SQL while executing the following statement?

SELECT COUNT(column name) FROM inventory;


Which one of the following functions are used to find the largest value from the given data in MySQL?


Based on the table STUDENT given here, write suitable SQL queries for the following:

Roll No Name Class Gender City Marks
1 Abhishek XI M Agra 430
2 Prateek XII M Mumbai 440
3 Sneha XI F Agra 470
4 Nancy XII F Mumbai 492
5 Himanshu XII M Delhi 360
6 Anchal XI F Dubai 256
7 Mehar X F Moscow 324
8 Nishant X M Moscow 429
  1. Display gender-wise highest marks.
  2. Display city-wise lowest marks.
  3. Display the total number of male and female students.

Write suitable SQL query for the following:

Display the remainder of 100 divided by 9.


Write suitable SQL query for the following:

Remove all the expected leading and trailing spaces from a column userid of the table ‘USERS’.


Explain the following SQL function using a suitable example.

DAYNAME()


Shreya, a database administrator has designed a database for a clothing shop. Help her by writing answers to the following questions based on the given table:

TABLE: CLOTH
CCODE CNAME SIZE COLOR PRICE DOP
C001 JEANS XL BLUE 990 2022-01-21
C002 T-SHIRT M RED 599 2021-12-12
C003 TROUSER M GREY 399 2021-11-10
C004 SAREE FREE GREEN 1299 2019-11-12
C005 KURTI L WHITE 399 2021-12-07
  1. Write a query to display cloth names in lowercase.
  2. Write a query to display the lowest price of the clothes.
  3. Write a query to count the total number of clothes purchased in medium size.
    OR
    Write a query to count the year-wise total number of clothes purchased.

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