how to combine firstname and lastname in SQL and search with LIKE

Question

I would like to combine FirstName and LastName into one column called 'FULL NAME' and search with LIKE in SQL.

Example 1:

FirstName : Milan
LastName: Patel

FullName: Milan Patel

Search with: Like '%SomeText%'

Example 2:

Title: " Meetings: A practical alternative to work."

Search: I would like to search the entire word within the give string. ex: work should return the above title.

Here is what I have so far.

SELECT 
    CE.Title, CC.FirstName + ' ' + CC.LastName AS FullName
FROM 
    EntryTable CE
JOIN 
    UserTable CC ON CE.EntryId = CC.USerId
WHERE 
    CC.FirstName LIKE 'n%'

EDIT

I am getting it there slowly. search is working fine with this query.

    SELECT 
     CE.Title 
    FROM 
     EntryTable CE
    JOIN 
     UserTable CC
    ON 
     CE.EntryId = CC.USerId
    WHERE 
     CC.FirstName  + ' ' + CC.LastName LIKE 's%'

BUT it only search for name starting with 's' , i would like to search name starting, ending, contains conditions as well. how can i go about that. please help

Answer 1

You can use LIKE with concatenated column values as below

WHERE 
  CC.FirstName + ' ' + CC.LastName LIKE 's%'

BUT it only search for name starting with 's', i would like to search name starting, ending, contains conditions as well. how can i go about that. please help

Then you have to use % before and after search string like below

WHERE 
  CC.FirstName + ' ' + CC.LastName LIKE '%s%'

Answer 2

you can use concat

   SELECT CE.Title, concat(CC.FirstName , ' ' , CC.LastName) AS FullName
   FROM EntryTable CE
  JOIN UserTable CC
  ON CE.EntryId = CC.USerId
  WHERE 
  concat(CC.FirstName , ' ' , CC.LastName) LIKE 'n%'
  OR  CC.FirstName LIKE 'n%' OR  CC.FirstName LIKE '%n'
  OR  CC.LastName LIKE 'n%'  OR CC.LastName LIKE '%n'
                        ^^--// (1).   ^^--// (2) 

(1) to find lastname in first of the string you search .

(2) to find lastname in the end of the string you search.

(3)to find last name in middle of string do this '%n%'

Answer 3

you can't use the ALIAS on the WHERE clause because in the SQL Order of Operation, the WHERE clause is executed before the SELECT clause.

better use the complete concatenation is the WHERE clause

WHERE CC.FirstName + ' ' + CC.LastName LIKE 'n%'

if you don't want to use that, wrap your query in a subquery so you can use the ALIAS ,

SELECT *
FROM
(
   SELECT CE.Title, CC.FirstName + ' ' + CC.LastName AS FullName
   FROM   EntryTable CE JOIN UserTable CC
          ON CE.EntryId = CC.USerId
) sub
WHERE sub.FullName LIKE 'n%'

Answer 4

其中CONCAT（CC.FirstName，''，CC.LastName）喜欢“％n％”

Answer 5

SELECT some_column_name FROM some_table where firstname + ' ' + lastname LIKE 'some_value'

不需要FullName列。

Answer 6

将它们组合在WHERE子句中，带有两个％符号。