Returning a concatenated value from a data table using a select SQL satement

I am wondering why this code in VB.NET doesnt work and it works fine in access. I want to return user surname and other names as one string usernames

SELECT StrConv([surname],3) & " " & StrConv([othernames],3) AS usernames, users.userId,
FROM users;

Anthony MatovuBusiness Analyst, MTN UgandaAsked:
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Use + instead of &

SELECT StrConv([surname],3) + " " + StrConv([othernames],3) AS usernames, users.userId,
FROM users;
Anthony MatovuBusiness Analyst, MTN UgandaAuthor Commented:
Thank you
i get the error msg

Syntax error (missing operator) in query expression 'StrConv([surname],3) StrConv([othernames],3)'.

this is the code

 dadp = New OleDb.OleDbDataAdapter("SELECT StrConv([surname],3)" + " " + "StrConv([othernames],3) AS usernames, users.userId, FROM users;", db)
        dT = New DataTable : dadp.Fill(dT) : dadp.Dispose()
        CType(frm.Controls("compBy"), ComboBox).DataSource = dT
        CType(frm.Controls("compBy"), ComboBox).DisplayMember = "usname" : CType(frm.Controls("compBy"), ComboBox).ValueMember = "userId"
        CType(frm.Controls("compBy"), ComboBox).BindingContext = New BindingContext : CType(frm.Controls("compBy"), ComboBox).SelectedIndex = -1

The plus needs to be within the quotes

 dadp = New OleDb.OleDbDataAdapter("SELECT StrConv([surname],3)" + " " + "StrConv([othernames],3)


 dadp = New OleDb.OleDbDataAdapter("SELECT StrConv([surname],3) + ' ' + StrConv([othernames],3) AS usernames, users.userId, FROM users;", db)

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