select customerid,concat_ws(" ",firstname,lastname) as name,timestampdiff(curdate(),Date_of_Birth,Year) as agefrom customersorder by age,customeridcorrect this
Question
select customerid,concat_ws(" ",firstname,lastname) as name,timestampdiff(curdate(),Date_of_Birth,Year) as agefrom customersorder by age,customeridcorrect this
Solution
The corrected SQL query would be:
SELECT customerid, CONCAT_WS(" ", firstname, lastname) AS name, TIMESTAMPDIFF(YEAR, Date_of_Birth, CURDATE()) AS age
FROM customers
ORDER BY age, customerid;
Here's the step by step explanation:
-
SELECT customerid, CONCAT_WS(" ", firstname, lastname) AS name, TIMESTAMPDIFF(YEAR, Date_of_Birth, CURDATE()) AS age: This part of the query is selecting the columns that you want to display in your final result. TheCONCAT_WSfunction is used to concatenate thefirstnameandlastnamewith a space in between. TheTIMESTAMPDIFFfunction is used to calculate the age of the customer by subtracting theDate_of_Birthfrom the current date (CURDATE()). -
FROM customers: This part of the query specifies the table from which to retrieve the data. -
ORDER BY age, customerid;: This part of the query is used to sort the result set byageandcustomerid. If two customers have the same age, they will be ordered by theircustomerid.
Similar Questions
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