हिंदी

Which type of values will not be considered by SQL while executing the following statement? SELECT COUNT(column name) FROM inventory;

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प्रश्न

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

SELECT COUNT(column name) FROM inventory;

विकल्प

  • Numeric value

  • text value

  • Null value

  • Date value

MCQ
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उत्तर

Null value

shaalaa.com
Functions in SQL
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
2022-2023 (March) Sample

संबंधित प्रश्न

The MAX () function finds the


Consider the table STUDENT given below:

RollNo Name Class DOB Gender City Marks
1 Anand XI 6/6/97 M Agra 430
2 Chetan XII 7/5/94 M Mumbai 460
3 Geet XI 6/5/97 F Agra 470
4 Preeti XII 8/8/95 F Mumbai 492
5 Saniyal XII 8/10/95 M Delhi 360
6 Maakhiy XI 12/12/94 F Dubai 256
7 Neha X 8/12/95 F Moscow 324
8 Nishant X 12/6/95 M Moscow 429

State the command that will give the output as:

Name
Anand
Chetan
Geet
Preeti

(i) select Name from student where Class ='XI' and Class='XII';

(ii) select name from student where not Class='XI' and Class='XII';

(iii) select name from student where City="Agra" or City="Mumbai";

(iv) select name from student where City in("Agra", "Mumbai");

Choose the correct option:


Assertion (A): COUNf function ignores DISTINCT

Reason (R): DISTINCT ignores the duplicate values.


What will be returned by the given query? Select round(23456.1234, -2) = ______.


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


"COUNT" keyword belongs to which categories in Mysql?


What will be returned by the given query? SELECT MID('BoardExamination', 2, 4) = ______.


Which of the following is not a date function?


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


Site any two differences between Single Row Functions and Aggregate Functions.


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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 the name of the month in which you were born.


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

To display your name in capital letters.


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SELECT ROUND(342.9234, -1);


Write the output produced by the following SQL statement:

SELECT LENGTH("Informatics Practices");


Write the output produced by the following SQL statement:

SELECT    YEAR(“1979/11/26”),
MONTH(“1979/11/26”),    DAY(“1979/11/26”), MONTHNAME(“1979/11/26”);


Which function is used to display the total number of records from a table in a database?


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 one of the following is not an aggregate function?


Write outputs for SQL queries that are based on the given table PURCHASE:

TABLE: PURCHASE
CNO CNAME CITY QUANTITY DOP
C01 GURPREET NEW DELHI 150 2022-06-11
C02 MALIKA HYDERABAD 10 2022-02-19
C03 NADAR DALHOUSIE 100 2021-12-04
C04 SAHIB CHANDIGARH 50 2021-10-10
C05 MEHAK CHANDIGARH 15 2021-10-20
  1. SELECT LENGTH(CNAME) FROM PURCHASE WHERE QUANTITY>100;
  2. SELECT CNAME FROM PURCHASE WHERE MONTH(DOP) = 3;
  3. SELECT MOD (QUANTITY, DAY(DOP)) FROM PURCHASE WHERE CITY = ‘CHANDIGARH’;

Write suitable SQL query for the following:

Round off the value 23.78 to one decimal place.


Write suitable SQL query for the following:

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


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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