Issue with full outer join in SQL Server - sql

Question

When I use below 2 queries separately I get output successfully
Query #1
DECLARE #ID VARCHAR(1000)
SET #ID = ''
SELECT #ID = #ID + CAST(int_ID AS VARCHAR(1000))
FROM MATRIX_RELATIONSHIP
SELECT COUNT(int_ID) [Count], YEAR(dt_5841_OF) [date]
FROM TRANS_IDENTIFICATIONS
WHERE smallint_209_ME = 4
AND CHARINDEX(CONVERT(VARCHAR, int_ID), ('''' + Replace((#ID),',',''',''') + '''')) > 0
GROUP BY YEAR(dt_5841_OF);
Output:
Count | year
02 2016
Query #2
SELECT
COUNT(*) [Count1], YEAR(dt_modifiedOn) [date]
FROM
MATRIX_RELATIONSHIP
GROUP BY
YEAR(dt_modifiedOn);
Output:
Count | year
02 2016
But when I use both queries to form a full outer join something like below:
SELECT
tab1.Count, tab2.Count1, tab1.date
FROM
(DECLARE #ID VARCHAR(1000)
SET #ID = ''
SELECT #ID = #ID+CAST(int_ID AS VARCHAR(1000))
FROM MATRIX_RELATIONSHIP
SELECT COUNT(int_ID) [Count], YEAR(dt_5841_OF) [date]
FROM TRANS_IDENTIFICATIONS
WHERE smallint_209_ME = 4
AND CHARINDEX(convert(varchar,int_ID), ('''' + Replace((#ID),',',''',''') + '''')) > 0
GROUP BY YEAR(dt_5841_OF)) tab1
FULL OUTER JOIN
(SELECT COUNT(*) [Count1], YEAR(dt_modifiedOn) [date]
FROM MATRIX_RELATIONSHIP
GROUP BY YEAR(dt_modifiedOn)) tab2 ON tab1.date = tab2.date;
I get these errors:
Msg 156, Level 15, State 1, Line 2
Incorrect syntax near the keyword 'DECLARE'.
Msg 102, Level 15, State 1, Line 4
Incorrect syntax near ')'.
Msg 102, Level 15, State 1, Line 7
Incorrect syntax near 'tab2'.
Expected result
Count | Count1 | year
02 02 2016
EDIT
I have tried placing declare and set outside the query too but still there the issue persists
DECLARE #ID VARCHAR(1000) SET #ID=''
SELECT tab1.Count,tab2.Count1,tab1.date from
( SELECT #ID= #ID+CAST(int_ID AS VARCHAR(1000))
from MATRIX_RELATIONSHIP SELECT COUNT(int_ID)[Count],YEAR(dt_5841_OF)[date] FROM TRANS_IDENTIFICATIONS WHERE smallint_209_ME=4 and CHARINDEX(convert(varchar,int_ID), ('''' + Replace((#ID),',',''',''') + '''')) >
0 GROUP BY YEAR(dt_5841_OF)) tab1
FULL OUTER JOIN
(SELECT COUNT(*)[Count1],YEAR(dt_modifiedOn)[date]
FROM MATRIX_RELATIONSHIP GROUP BY YEAR(dt_modifiedOn)) tab2
ON tab1.date=tab2.date;
Which leads to another set of errors:
Msg 102, Level 15, State 1, Line 3
Incorrect syntax near '='.
Msg 102, Level 15, State 1, Line 5
Incorrect syntax near ')'.
Msg 102, Level 15, State 1, Line 8
Incorrect syntax near 'tab2'.

Answer 1

DECLARE #ID VARCHAR(1000)
SET #ID='';
SELECT #ID = #ID + CAST(int_ID AS VARCHAR(1000)) from MATRIX_RELATIONSHIP;
SELECT MAX(Count) AS Count, MAX(Count1) AS Count1, date
FROM
(
SELECT COUNT(int_ID)[Count], null AS [Count1], YEAR(dt_5841_OF)[date]
FROM TRANS_IDENTIFICATIONS
WHERE smallint_209_ME = 4
and CHARINDEX(convert(varchar,int_ID), ('''' + Replace((#ID),',',''',''') + '''')) >
0 GROUP BY YEAR(dt_5841_OF)
UNION ALL
SELECT NULL AS [Count], COUNT(*)[Count1],YEAR(dt_modifiedOn)[date]
FROM MATRIX_RELATIONSHIP
GROUP BY YEAR(dt_modifiedOn)
)AS temp
GROUP BY [date]

Answer 2

this is not a valid from
it is two select statements
from
( DECLARE #ID VARCHAR(1000)
SET #ID='' SELECT #ID= #ID+CAST(int_ID AS VARCHAR(1000))
from MATRIX_RELATIONSHIP
SELECT COUNT(int_ID)[Count],YEAR(dt_5841_OF)[date]
FROM TRANS_IDENTIFICATIONS
WHERE smallint_209_ME=4
and CHARINDEX(convert(varchar,int_ID), ('''' + Replace((#ID),',',''',''') + '''')) > 0
GROUP BY YEAR(dt_5841_OF)
)

Answer 3

Your DECLARE and SET has to be outside of the SELECT. But what is its purpose?

Answer 4

remove the DECLARE #ID VARCHAR(1000);
SET #ID='' from the select statement.
Also declare the variable at the top of your statement
and rather writing two separate select statement use inner join on int_id and then do the outer join it will work

Answer 5

DECLARE #ID VARCHAR(1000)
SET #ID = ''
select * from
(
SELECT #ID+ CAST(MATRIX_RELATIONSHIP.int_ID AS varchar(1000)) AS count1, COUNT(TRANS_IDENTIFICATIONS.int_ID) AS count2, YEAR(TRANS_IDENTIFICATIONS.dt_5841_OF) AS date1
FROM MATRIX_RELATIONSHIP INNER JOIN
TRANS_IDENTIFICATIONS ON MATRIX_RELATIONSHIP.int_ID = TRANS_IDENTIFICATIONS.int_ID
WHERE (TRANS_IDENTIFICATIONS.smallint_209_ME = 4) AND (CHARINDEX(CONVERT(varchar, TRANS_IDENTIFICATIONS.int_ID), '''' + REPLACE(#ID, ',', ''',''') + '''') > 0)
GROUP BY YEAR(TRANS_IDENTIFICATIONS.dt_5841_OF),MATRIX_RELATIONSHIP.int_ID
union
(
SELECT '' as count1, COUNT(*) [Count2], YEAR(dt_modifiedOn) [date1]
FROM MATRIX_RELATIONSHIP
GROUP BY YEAR(dt_modifiedOn)
)
) as tbl
I hope this works for you... Do let me know