Dynamic query with variable value from a table in SSIS 2015 - sql-server

Question

I have Table A that has only one row :
CODE | DATE
202211 | 2022-11
this table will update it self automatically every end of the month (eg: Next month it will change to 202212 and 2022-12)
I want to use 'CODE' and 'DATE' to make my query dynamic, using variable and Execute SQL Task in SSIS.
My original query look like this :
SELECT * FROM X
WHERE PERIOD = '202211', EXPDATE > '2022-11'
I want to make it so that whenever Table A change, I don't have to change the Query too.
This is what I tried already :
DECLARE #Period varchar(50)
DECLARE #Expdate varchar(50)
SET #Period = ?
SET #Expdate = ?
SELECT * FROM X
WHERE PERIOD = #Period, EXPDATE > #Expdate
When I try to run using '?' just as the documentation say, it doesn't work, but it run when I change the '?' into hardcode, so I'm pretty sure at least my query works. Am I missing something, or I'm setting the Variable wrong.
This is my variable settings
Name | Scope | Data type | Value | Expression
position | MyDtsx | String | |
date | MyDtsx | String | |
This is my SQL Task setting
General
__________________________
Result Set = Single Row
SQLSourceType = Direct Input
SQLStatement = 'SELECT CODE as position, DATE as date FROM A'
Result Set
__________________________
Result Name | Variable Name
position | User::position
date | User::date

Answer 1

You have invalid syntax
SELECT *
FROM X
WHERE PERIOD = #Period, EXPDATE > #Expdate
Make that
SELECT *
FROM X
WHERE PERIOD = #Period AND EXPDATE > #Expdate
However, if table A (the source of Period and ExpDate) is in the same database as table X, skip the extraneous Execute SQL Task and the variables and just make the query
SELECT X.*
FROM X
WHERE EXISTS (SELECT *
FROM A
WHERE X.PERIOD = A.Code AND X.EXPDATE > P.[Date]);
The comment indicates
Table A and Table X is from a different database. Sadly the query is actually fine since when I change it to' #Period = '202211'' and '#Expdate = '2022-11'' it run.
A working repo.
My working notes for those following along at home as the name changes messed me a few times.
Table A's Code = SSIS Variable position = Table X's Period
Table A's Date = SSIS Variable date = Table X's ExpDate
SQL Setup
Execute sql task to ensure I have data
drop table if exists dbo.so_74394641;
create table dbo.so_74394641
(
Col1 bigint, Period varchar(50), ExpDate varchar(50)
);
insert into dbo.so_74394641
SELECT row_number() over (order by (SELECT NULL)) AS col1, '202211', '2022-12'
FROM sys.all_objects;
SQL Get Values
Execute sql task. Hard coded as I didn't want to create another table in a different database
SELECT '202211' AS Code, '2022-11' AS [Date];
DFT Get Data
A data flow. OLE DB Source component using the following query
DECLARE #Period varchar(50)
DECLARE #Expdate varchar(50)
SET #Period = ?
SET #Expdate = ?
SELECT * FROM dbo.SO_74394641 AS X
WHERE PERIOD = #Period and EXPDATE > #Expdate;
Parameters mapped
0 User::dosition Input
1 User::date Input
Control flow
Data Flow