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Which of the following codes can provide the first 3 characters of all the guest this year 2020 in a proper representation of resut?Group of answer choicesselect substring(LastName, 3) As "First Three Characters"from tblguest2020select substring(LastName,0,3) from tblguest2020select substring(LastName,1,3) As "First Three Characters"from tblguest2020select substring(LastName,1,3) from tblguest2020

Question

Which of the following codes can provide the first 3 characters of all the guest this year 2020 in a proper representation of resut?Group of answer choicesselect substring(LastName, 3) As "First Three Characters"from tblguest2020select substring(LastName,0,3) from tblguest2020select substring(LastName,1,3) As "First Three Characters"from tblguest2020select substring(LastName,1,3) from tblguest2020

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Solution

The correct code to get the first 3 characters of all the guest's last names for the year 2020 would be:

select substring(LastName,1,3) As "First Three Characters"
from tblguest2020

This is because in SQL, the substring function starts counting from 1, not 0. So, substring(LastName,1,3) will give the first 3 characters of the LastName. The As "First Three Characters" part is just renaming the column in the output for clarity.

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Similar Questions

Which of the following codes will merge the last name and first name of all the guest in a formal format?Group of answer choicesSELECT CONCAT(LASTNAME, " , ", FIRSTNAME)  FROM tblguest2020SELECT CONCAT(LASTNAME, " ", FIRSTNAME) AS "GUEST NAME" FROM tblguest2020SELECT CONCAT(LASTNAME, ", ", FIRSTNAME) AS "GUEST NAME" FROM tblguest2020 SELECT CONCAT(LASTNAME, " ", FIRSTNAME) FROM tblguest2020

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