EXEC sp_executesql a parameter is not passed - sql-server

Question

I need your help please,
I read the forum but I'm still having a persistant problem without solution. I want to pass a variable into parameters of an SP_EXECUTESQL, but the result value of the passed variable is always ZERO in my SQL statement.
Here is my code :
declare #counter int
declare #sql nvarchar(max)
// ------ My #COUNTER value I want to get, it's ok
SET #counter = (
select COUNT(CREATED_DT)
from USERS
where CAST(CREATED_DT as date) = CAST(#DATE_TIME as date)
)
// ------ I try to pass my #COUNTER value for my COUNTER_COLUMN, and it's not ok anymore...
SET #sql = N'update DATA_REPORT set COUNTER_COLUMN = #counterB';
EXEC sp_executesql #sql, N'#counterB int', #counterB = #counter;
I do not have errors on execution but in my SQL there is always :
COUNTER_COLUMN = 0 !!! I checked before that my #counter was not returning 0, and it returns perfectly miscenaneous good values.
Any clues about this issue ?
Thank you very much :)
Robin

Answer 1

Have you tried this:
declare #sql nvarchar(max)
SET #sql = N'update myTable set avg = (
select COUNT(CREATED_DT)
from USERS
where CAST(CREATED_DT as date) = CAST(#DATE_TIME as date)
)';
EXEC sp_executesql #sql

Answer 2

Greatly simplifying this to remove the unnecessary dynamic sql it would like something like this.
update DATA_REPORT
set COUNTER_COLUMN =
(
select COUNT(CREATED_DT)
from USERS
where CAST(CREATED_DT as date) = CAST(#DATE_TIME as date)
)

Answer 3

From your query, i try to use 'concat' the parameter instead of using #counterB and it work just fine.
declare #sql nvarchar(max)
declare #counter int = 1
set #sql = concat(N'update DATA_REPORT set COUNTER_COLUMN = ', #counter);
exec sp_executesql #sql
#sql look like this
update DATA_REPORT set COUNTER_COLUMN = 1

Answer 4

Thanks to all of you,
Your answers were very interesting and helped me to think differently and to solve my issue. I choosed to execute my statement the more simple as possible without #parameters with sp_executesql. It made problems with the TYPE of my variables.
PS. #Rawitas Krungkaew > I didn't try CONCAT but keep it in mind, thk you.
declare #dyn_col_account varchar(40);
declare #DATE_TIME nvarchar(50)
SET #counter = (
select COUNT(CREATED_DT)
from USERS
where CAST(CREATED_DT as date) = CAST(#DATE_TIME as date)
)
DECLARE #query1 nvarchar(max) = '
UPDATE DATA_REPORT
SET ['+#dyn_col_account+'] = '+ #counter +'
WHERE TIME_DAY=cast('''+#DATE_TIME+''' as date)'
EXECUTE sp_executesql #query1