string variable not working

[#1]

I have string variable

let d1 = 'Name1 & ''|'' & Name2'

but when I try do this

$(d1)

get this :

"Syntax error, missing/misplaced"

In MS SQL script is no problem .

Please help me

best regards Vilgis

[SunilChauhan]

let d1 = 'Name1 '& '|' & 'Name2';

or

let d1 = Name1 & '|' & Name2;

Names are field;

[#3]

Thanks Sunil for reply

I just create string by this formula :

TableOfHierarcy:

hierarchy (ID, ParentID, Name, 'ParentName', Name, 'Path', '|', 'Depth')

load
     ID,
     ParentID,
     Nameresident TableOfNodes;
;
LET a = NoOfFields('TableOfHierarcy');

LET b = 1;

Let i = 1;

LET c = '';

LET d = '';

LET d1 = '';

for b = 1 to a-6
     for i = 1 to b
           c = c &  ' Name' & $(i) & ' &'
     next
     c = left(c,len(c) - 1)    & ' as new_name' & $(b) &' ,'
     NEXT
d = left(c,len(c)-1);

I want instead symbol '&' replace '&'|"" . But not working

//And d variable is d = '

Name1  as new_name1 , Name1 & Name2  as new_name2 , Name1 & Name2 & Name3  as new_name3

'

[#4 · Accepted solution]

function relace(string_text_value,'''',''') not working

but replace(string_text_value,'''',chr(39)) working