Advertisements
Advertisements
Question
Explain the following SQL function using a suitable example.
DAYNAME()
Solution
DAYNAME(): It returns the weekday name for a given date.
Example: SELECT DAYNAME(‘2022-07-22’);
Output: Friday
APPEARS IN
RELATED QUESTIONS
______ keyword is used to find out the number of values in a column?
What will be the output of the following SQL statement?
SELECT DAY NAME (2022-04-08)
Which of the following is not an aggregate function?
What will be returned by the given query? select mid("Computer", 2, 4) = ______.
What will be returned by the given query? select substr("Computer", 4) = ______.
What will be returned by the given query? select power(3, 2) = ______.
What will be returned by the given query? Select length(trim("ABC Public School")) = ______.
Name a function of MySQL which is used to remove trailing and leading spaces from a string.
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') = ______.
What will be returned by the given query? SELECT DAYOFYEAR('2015-01-10') = ______.
Which of the following is not a text function?
The string function that returns the index of the first occurrence of substring is ______.
What is the general format of UPPER() return type?
Which statement is used to count the number of rows in table?
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 output produced by the following SQL statement:
SELECT LENGTH("Informatics Practices");
Which function is used to display the total number of records from a table in a database?
Write the outputs of the SQL queries based on the relations Teacher and Placement given below:
Table: Teacher
T_ID | Name | Age | Department | Date_of_join | Salary | Gender |
1 | Arunan | 34 | Computer Sc | 2019-01-10 | 12000 | M |
2 | Saman | 31 | History | 2017-03-24 | 20000 | F |
3 | Randeep | 32 | Mathematics | 2020-12-12 | 30000 | M |
4 | Samira | 35 | History | 2018-07-01 | 40000 | F |
5 | Raman | 42 | Mathematics | 2021-09-05 | 25000 | M |
6 | Shyam | 50 | History | 2019-06-27 | 30000 | M |
7 | Shiv | 44 | Computer Sc | 2019-02-25 | 21000 | M |
8 | Shalakha | 33 | Mathematics | 2018-07-31 | 20000 | F |
Table: Placement
P_ID | Department | Place |
1 | History | Ahmedabad |
2 | Mathematics | Jaipur |
3 | Computer Sc | Nagpur |
- SELECT Department, avg(salary) FROM Teacher GROUP BY Department;
- SELECT MAX(Date_of_Join), MIN(Date_of_Join) FROM Teacher;
- SELECT Name, Salary, T.Department, Place FROM Teacher T, Placement P WHERE T.Department = P.Department AND Salary>20000;
- SELECT Name, Place FROM Teacher T, Placement P WHERE Gender = ’F’ AND T.Department = P.Department;
In SQL, which function is used to display the current date and time?
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 |
- SELECT LENGTH(CNAME) FROM PURCHASE WHERE QUANTITY>100;
- SELECT CNAME FROM PURCHASE WHERE MONTH(DOP) = 3;
- SELECT MOD (QUANTITY, DAY(DOP)) FROM PURCHASE WHERE CITY = ‘CHANDIGARH’;
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 |
- Display gender-wise highest marks.
- Display city-wise lowest marks.
- Display the total number of male and female students.
Write suitable SQL query for the following:
Display 7 characters extracted from the 7th left character onwards from the string ‘INDIA SHINING’.
Explain the following SQL function using a suitable example.
TRIM()
Explain the following SQL function using a suitable example.
MID()
Explain the following SQL function using a suitable example.
POWER()
Which function returns the sum of all elements of a list?