[Solved] Consider this function:CREATE FUNCTION dbo.ConcatNames(@first NVARCHAR(50), @last NVARCHAR(50)) RETURNS NVARCHAR(100) AS BEGIN RETURN @first + ' ' + @last ENDWhat will SELECT dbo.... | SQL

SQL - Stored Procedures and Functions

Consider this function:

CREATE FUNCTION dbo.ConcatNames(@first NVARCHAR(50), @last NVARCHAR(50)) RETURNS NVARCHAR(100) AS BEGIN RETURN @first + ' ' + @last END

What will SELECT dbo.ConcatNames('John', 'Doe'); return?

A'JohnDoe'

B'John Doe'

CError: Concatenation not allowed

DNULL

Step-by-Step Solution

Solution:

Step 1: Analyze function concatenation
The function joins first and last names with a space in between.
Step 2: Apply input values
Input 'John' and 'Doe' become 'John' + ' ' + 'Doe' = 'John Doe'.
Final Answer:
'John Doe' -> Option B
Quick Check:
Concatenation with space = 'John Doe' [OK]

Quick Trick: Use + with spaces to join strings [OK]

Common Mistakes:

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