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Development Tools Database Foundations SQL Calculating, Aggregating and Other Functions String Functions

Select the first letter of the "first_name", add a period after it, followed by a space and add the "last_name". Also, convert "last_name" to upper case. Call it "name". Example: "A. CHALKLEY".

I have try this many times ......what is wrong with query ................please help me.............. SELECT CONCAT((SUBSTRING(first_name),1,1), ". ",(UPPER(last_name))) AS name FROM users i received error as like this Bummer! There's something wrong with your SQL statement. Please review your code and try again.

3 Answers

SELECT CONCAT(SUBSTRING(first_name,1,1), ". ",UPPER(last_name)) AS name FROM users;

Strip away some extra parenthesis you've got there. Try:

SUBSTRING(first_name, 1, 1)

and look at

CONCAT(string1, string2, string3)

it should have no parenthesis around string 1 or 2.

I originally had nearly the same answer you had. However, there were a couple minor changes that I made - I removed some parentheseis from the beginning and end of the various parts. I also added a space between the period and last_name.

SELECT CONCAT(SUBSTRING(first_name,1,1), ". ", " ",(UPPER(last_name)) AS name FROM users;