Adding a list of numbers to a query with CASE WHEN
Is it possible to add a list of numbers to this query below:
DECLARE @MONTHS NVARCHAR(10)
DECLARE @YEAR NVARCHAR(10)
BEGIN
SET @MONTHS = 'Q1'
SET @YEAR = '2017'
SELECT *
FROM netlication.dbo.iehResults
WHERE DATEPART(yyyy,COLLDATE) = CAST(@YEAR AS INT)
AND DATEPART(mm,collDate) IN (CASE @MONTHS WHEN 'Q1' THEN '1' End)
END
The query above works fine, but for the value Q1 I want to be able to pass a list of numbers 1,2 and 3
So I tried doing:
AND DATEPART(mm, collDate) IN (CASE @MONTHS WHEN 'Q1' THEN '1,2,3' End)
But I get a conversion error:
Msg 245, Level 16, State 1, Line 9
Conversion failed when converting the varchar value '1,2,3' to data type int.
sql
sql-server tsql edited Nov 28 '18 at 19:56
marc_s
583k13011241270
asked Nov 28 '18 at 18:04
psj01psj01
1,0431430
add a comment |
Is it possible to add a list of numbers to this query below:
DECLARE @MONTHS NVARCHAR(10)
DECLARE @YEAR NVARCHAR(10)
BEGIN
SET @MONTHS = 'Q1'
SET @YEAR = '2017'
SELECT *
FROM netlication.dbo.iehResults
WHERE DATEPART(yyyy,COLLDATE) = CAST(@YEAR AS INT)
AND DATEPART(mm,collDate) IN (CASE @MONTHS WHEN 'Q1' THEN '1' End)
END
The query above works fine, but for the value Q1 I want to be able to pass a list of numbers 1,2 and 3
So I tried doing:
AND DATEPART(mm, collDate) IN (CASE @MONTHS WHEN 'Q1' THEN '1,2,3' End)
But I get a conversion error:
Msg 245, Level 16, State 1, Line 9
Conversion failed when converting the varchar value '1,2,3' to data type int.
sql
sql-server tsql edited Nov 28 '18 at 19:56
marc_s
583k13011241270
asked Nov 28 '18 at 18:04
psj01psj01
1,0431430
1
Aside: Yourcaseexpression is return a string ('1') rather than anint(1) whileDatePartreturns anint. The mismatch in datatypes is resolved according to the rules for data type precedence. The best practice is to use the appropriate datatype.
– HABO
Nov 28 '18 at 22:20
add a comment |
Is it possible to add a list of numbers to this query below:
DECLARE @MONTHS NVARCHAR(10)
DECLARE @YEAR NVARCHAR(10)
BEGIN
SET @MONTHS = 'Q1'
SET @YEAR = '2017'
SELECT *
FROM netlication.dbo.iehResults
WHERE DATEPART(yyyy,COLLDATE) = CAST(@YEAR AS INT)
AND DATEPART(mm,collDate) IN (CASE @MONTHS WHEN 'Q1' THEN '1' End)
END
The query above works fine, but for the value Q1 I want to be able to pass a list of numbers 1,2 and 3
So I tried doing:
AND DATEPART(mm, collDate) IN (CASE @MONTHS WHEN 'Q1' THEN '1,2,3' End)
But I get a conversion error:
Msg 245, Level 16, State 1, Line 9
Conversion failed when converting the varchar value '1,2,3' to data type int.
sql
sql-server tsql edited Nov 28 '18 at 19:56
marc_s
583k13011241270
asked Nov 28 '18 at 18:04
psj01psj01
1,0431430
Is it possible to add a list of numbers to this query below:
DECLARE @MONTHS NVARCHAR(10)
DECLARE @YEAR NVARCHAR(10)
BEGIN
SET @MONTHS = 'Q1'
SET @YEAR = '2017'
SELECT *
FROM netlication.dbo.iehResults
WHERE DATEPART(yyyy,COLLDATE) = CAST(@YEAR AS INT)
AND DATEPART(mm,collDate) IN (CASE @MONTHS WHEN 'Q1' THEN '1' End)
END
The query above works fine, but for the value Q1 I want to be able to pass a list of numbers 1,2 and 3
So I tried doing:
AND DATEPART(mm, collDate) IN (CASE @MONTHS WHEN 'Q1' THEN '1,2,3' End)
But I get a conversion error:
Msg 245, Level 16, State 1, Line 9
Conversion failed when converting the varchar value '1,2,3' to data type int.
sql
sql-server tsql sql
sql-server tsql edited Nov 28 '18 at 19:56
marc_s
583k13011241270
asked Nov 28 '18 at 18:04
psj01psj01
1,0431430
edited Nov 28 '18 at 19:56
marc_s
583k13011241270
asked Nov 28 '18 at 18:04
psj01psj01
1,0431430
edited Nov 28 '18 at 19:56
marc_s
583k13011241270
edited Nov 28 '18 at 19:56
marc_s
583k13011241270
edited Nov 28 '18 at 19:56
marc_s
583k13011241270
583k13011241270
asked Nov 28 '18 at 18:04
psj01psj01
1,0431430
asked Nov 28 '18 at 18:04
psj01psj01
1,0431430
asked Nov 28 '18 at 18:04
psj01psj01
1,0431430
1,0431430
1
Aside: Yourcaseexpression is return a string ('1') rather than anint(1) whileDatePartreturns anint. The mismatch in datatypes is resolved according to the rules for data type precedence. The best practice is to use the appropriate datatype.
– HABO
Nov 28 '18 at 22:20
add a comment |
1
Aside: Yourcaseexpression is return a string ('1') rather than anint(1) whileDatePartreturns anint. The mismatch in datatypes is resolved according to the rules for data type precedence. The best practice is to use the appropriate datatype.
– HABO
Nov 28 '18 at 22:20
1
1
Aside: Your
case expression is return a string ('1') rather than an int (1) while DatePart returns an int. The mismatch in datatypes is resolved according to the rules for data type precedence. The best practice is to use the appropriate datatype.– HABO
Nov 28 '18 at 22:20
Aside: Your
case expression is return a string ('1') rather than an int (1) while DatePart returns an int. The mismatch in datatypes is resolved according to the rules for data type precedence. The best practice is to use the appropriate datatype.– HABO
Nov 28 '18 at 22:20
add a comment |
2 Answers
2
active
oldest
votes
Instead of DATEPART(mm,collDate) you can use DATEPART(q,collDate) which will return the quarter and you won't need to compare with 3 values. But to compare, you must use between and 2 case statements.
DECLARE @MONTHS NVARCHAR(10)
DECLARE @YEAR NVARCHAR(10)
BEGIN
SET @MONTHS = 'Q1'
set @YEAR = '2017'
SELECT * FROM netlication.dbo.iehResults
WHERE DATEPART(yyyy,COLLDATE) = CAST(@YEAR AS INT)
AND DATEPART(q,collDate) = (CASE @MONTHS WHEN 'Q1' THEN 1 WHEN 'Q2' THEN 2 WHEN 'Q3' THEN 3 WHEN 'Q4' THEN 4 End)
END
However, performance wise it will be better to calculate the start and end dates of the quarter and then to filter by COLLDATE between them:
set @StartDate = DATEFROMPARTS(@YAR, CASE @MONTHS
WHEN 'Q1' THEN 1
WHEN 'Q2' THEN 4
WHEN 'Q3' THEN 7
WHEN 'Q4' THEN 10 End, 1)
set @EndDate = DATEADD(q, 1, @StartDate)
SELECT * FROM netlication.dbo.iehResults
WHERE COLLDATE >= @StartDate and COLLDATE < @EndDate
answered Nov 28 '18 at 18:08
Andrey NikolovAndrey Nikolov
4,3733922
add a comment |
AND DATEPART(mm,collDate) IN (SELECT 1 WHERE @MONTHS = 'Q1'
UNION
SELECT 2 WHERE @MONTHS = 'Q1'
UNION
SELECT 3 WHERE @MONTHS = 'Q1')
answered Nov 28 '18 at 18:10
dcpdcp
43.3k16119147
add a comment |
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2 Answers
2
active
oldest
votes
2 Answers
2
active
oldest
votes
active
oldest
votes
active
oldest
votes
Instead of DATEPART(mm,collDate) you can use DATEPART(q,collDate) which will return the quarter and you won't need to compare with 3 values. But to compare, you must use between and 2 case statements.
DECLARE @MONTHS NVARCHAR(10)
DECLARE @YEAR NVARCHAR(10)
BEGIN
SET @MONTHS = 'Q1'
set @YEAR = '2017'
SELECT * FROM netlication.dbo.iehResults
WHERE DATEPART(yyyy,COLLDATE) = CAST(@YEAR AS INT)
AND DATEPART(q,collDate) = (CASE @MONTHS WHEN 'Q1' THEN 1 WHEN 'Q2' THEN 2 WHEN 'Q3' THEN 3 WHEN 'Q4' THEN 4 End)
END
However, performance wise it will be better to calculate the start and end dates of the quarter and then to filter by COLLDATE between them:
set @StartDate = DATEFROMPARTS(@YAR, CASE @MONTHS
WHEN 'Q1' THEN 1
WHEN 'Q2' THEN 4
WHEN 'Q3' THEN 7
WHEN 'Q4' THEN 10 End, 1)
set @EndDate = DATEADD(q, 1, @StartDate)
SELECT * FROM netlication.dbo.iehResults
WHERE COLLDATE >= @StartDate and COLLDATE < @EndDate
answered Nov 28 '18 at 18:08
Andrey NikolovAndrey Nikolov
4,3733922
add a comment |
Instead of DATEPART(mm,collDate) you can use DATEPART(q,collDate) which will return the quarter and you won't need to compare with 3 values. But to compare, you must use between and 2 case statements.
DECLARE @MONTHS NVARCHAR(10)
DECLARE @YEAR NVARCHAR(10)
BEGIN
SET @MONTHS = 'Q1'
set @YEAR = '2017'
SELECT * FROM netlication.dbo.iehResults
WHERE DATEPART(yyyy,COLLDATE) = CAST(@YEAR AS INT)
AND DATEPART(q,collDate) = (CASE @MONTHS WHEN 'Q1' THEN 1 WHEN 'Q2' THEN 2 WHEN 'Q3' THEN 3 WHEN 'Q4' THEN 4 End)
END
However, performance wise it will be better to calculate the start and end dates of the quarter and then to filter by COLLDATE between them:
set @StartDate = DATEFROMPARTS(@YAR, CASE @MONTHS
WHEN 'Q1' THEN 1
WHEN 'Q2' THEN 4
WHEN 'Q3' THEN 7
WHEN 'Q4' THEN 10 End, 1)
set @EndDate = DATEADD(q, 1, @StartDate)
SELECT * FROM netlication.dbo.iehResults
WHERE COLLDATE >= @StartDate and COLLDATE < @EndDate
answered Nov 28 '18 at 18:08
Andrey NikolovAndrey Nikolov
4,3733922
add a comment |
Instead of DATEPART(mm,collDate) you can use DATEPART(q,collDate) which will return the quarter and you won't need to compare with 3 values. But to compare, you must use between and 2 case statements.
DECLARE @MONTHS NVARCHAR(10)
DECLARE @YEAR NVARCHAR(10)
BEGIN
SET @MONTHS = 'Q1'
set @YEAR = '2017'
SELECT * FROM netlication.dbo.iehResults
WHERE DATEPART(yyyy,COLLDATE) = CAST(@YEAR AS INT)
AND DATEPART(q,collDate) = (CASE @MONTHS WHEN 'Q1' THEN 1 WHEN 'Q2' THEN 2 WHEN 'Q3' THEN 3 WHEN 'Q4' THEN 4 End)
END
However, performance wise it will be better to calculate the start and end dates of the quarter and then to filter by COLLDATE between them:
set @StartDate = DATEFROMPARTS(@YAR, CASE @MONTHS
WHEN 'Q1' THEN 1
WHEN 'Q2' THEN 4
WHEN 'Q3' THEN 7
WHEN 'Q4' THEN 10 End, 1)
set @EndDate = DATEADD(q, 1, @StartDate)
SELECT * FROM netlication.dbo.iehResults
WHERE COLLDATE >= @StartDate and COLLDATE < @EndDate
answered Nov 28 '18 at 18:08
Andrey NikolovAndrey Nikolov
4,3733922
Instead of DATEPART(mm,collDate) you can use DATEPART(q,collDate) which will return the quarter and you won't need to compare with 3 values. But to compare, you must use between and 2 case statements.
DECLARE @MONTHS NVARCHAR(10)
DECLARE @YEAR NVARCHAR(10)
BEGIN
SET @MONTHS = 'Q1'
set @YEAR = '2017'
SELECT * FROM netlication.dbo.iehResults
WHERE DATEPART(yyyy,COLLDATE) = CAST(@YEAR AS INT)
AND DATEPART(q,collDate) = (CASE @MONTHS WHEN 'Q1' THEN 1 WHEN 'Q2' THEN 2 WHEN 'Q3' THEN 3 WHEN 'Q4' THEN 4 End)
END
However, performance wise it will be better to calculate the start and end dates of the quarter and then to filter by COLLDATE between them:
set @StartDate = DATEFROMPARTS(@YAR, CASE @MONTHS
WHEN 'Q1' THEN 1
WHEN 'Q2' THEN 4
WHEN 'Q3' THEN 7
WHEN 'Q4' THEN 10 End, 1)
set @EndDate = DATEADD(q, 1, @StartDate)
SELECT * FROM netlication.dbo.iehResults
WHERE COLLDATE >= @StartDate and COLLDATE < @EndDate
answered Nov 28 '18 at 18:08
Andrey NikolovAndrey Nikolov
4,3733922
edited Nov 28 '18 at 18:14
answered Nov 28 '18 at 18:08
Andrey NikolovAndrey Nikolov
4,3733922
answered Nov 28 '18 at 18:08
Andrey NikolovAndrey Nikolov
4,3733922
answered Nov 28 '18 at 18:08
Andrey NikolovAndrey Nikolov
4,3733922
4,3733922
add a comment |
add a comment |
AND DATEPART(mm,collDate) IN (SELECT 1 WHERE @MONTHS = 'Q1'
UNION
SELECT 2 WHERE @MONTHS = 'Q1'
UNION
SELECT 3 WHERE @MONTHS = 'Q1')
answered Nov 28 '18 at 18:10
dcpdcp
43.3k16119147
add a comment |
AND DATEPART(mm,collDate) IN (SELECT 1 WHERE @MONTHS = 'Q1'
UNION
SELECT 2 WHERE @MONTHS = 'Q1'
UNION
SELECT 3 WHERE @MONTHS = 'Q1')
answered Nov 28 '18 at 18:10
dcpdcp
43.3k16119147
add a comment |
AND DATEPART(mm,collDate) IN (SELECT 1 WHERE @MONTHS = 'Q1'
UNION
SELECT 2 WHERE @MONTHS = 'Q1'
UNION
SELECT 3 WHERE @MONTHS = 'Q1')
answered Nov 28 '18 at 18:10
dcpdcp
43.3k16119147
AND DATEPART(mm,collDate) IN (SELECT 1 WHERE @MONTHS = 'Q1'
UNION
SELECT 2 WHERE @MONTHS = 'Q1'
UNION
SELECT 3 WHERE @MONTHS = 'Q1')
answered Nov 28 '18 at 18:10
dcpdcp
43.3k16119147
answered Nov 28 '18 at 18:10
dcpdcp
43.3k16119147
answered Nov 28 '18 at 18:10
dcpdcp
43.3k16119147
answered Nov 28 '18 at 18:10
dcpdcp
43.3k16119147
43.3k16119147
add a comment |
add a comment |
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1
Aside: Your
caseexpression is return a string ('1') rather than anint(1) whileDatePartreturns anint. The mismatch in datatypes is resolved according to the rules for data type precedence. The best practice is to use the appropriate datatype.– HABO
Nov 28 '18 at 22:20