I need to do a SELECT like :
Select
col1, col2, (expression) as colA
from tablex ,
but the expression depends on an external variable #per so, the select would be something like :
SELECT
col1, col2,
case
#per = 1 then (col00 + col01) as colA
#per = 2 then (col00 + col01 + col02) as colA
#per = 3 then (col00 + col01 + col02 + col03) as colA
end
FROM tableX
How do I do this?
Thanks
This is the code assuming you are using T-SQL:
SELECT col1,col2,
case
WHEN #per =1 then (col00+col01)
WHEN #per =2 then (col00+col01+col02)
WHEN #per =3 then (col00+col01+col02+col03)
end as colA
FROM tableX
SELECT col1,col2, colA =
CASE #per
WHEN 1 THEN (col00+col01)
WHEN 2 THEN (col00+col01+col02)
WHEN 3 THEN (col00+col01+col02+col03)
ELSE 0
END
FROM tableX
Related
select 'HP00'+ select CAST(select((select count(policyIdPolicy)
from #temp where policyIdPolicy Not like 'Hp%')-
(select count(policyIdPolicy) from #temp
where policyIdPolicy like 'Hp%')) AS VARCHAR(10))
Select each part separately and then concat.
Query
select 'HP00' + cast((t.col_1 - t.col_2) as varchar(max)) from(
select
sum(case when policyIdPolicy like 'Hp%' then 1 else 0 end) as col_1,
sum(case when policyIdPolicy not like 'Hp%' then 1 else 0 end) as col_2
from #temp
)t;
Try this:
select 'HP00'+
CAST
(
(
(select count(policyIdPolicy)
from #temp
where policyIdPolicy Not like 'Hp%'
)
-
(select count(policyIdPolicy)
from #temp
where policyIdPolicy like 'Hp%')
) AS VARCHAR(10)
)
I have a column which has 100 rows of data. I need to get the top 4 but in instead of rows I need to convert it into columns. Like Col1, Col2, Col3 and Col4.
I have tried
SELECT
MAX (CASE
WHEN rss_name = 'BBC-Sports'
THEN rss_name
END) AS col1,
MAX (CASE
WHEN rss_name = 'Talk Sports'
THEN rss_name
END) AS col2,
MAX (CASE
WHEN rss_name = 'Sky Sports'
THEN rss_name
END) AS col3,
MAX (CASE
WHEN rss_name = 'Crick Info'
THEN rss_name
END) AS col4
FROM
RSS
but it only works with static values:
I need
Col1, Col2, Col3, Col4
Sports,Talk Sports,Sky Sports,Crick Info
but since this is not constant data it will change and the values in Col keep changing.
You could use a derived table to set your column order then use your conditional aggregation on that.
SELECT
MAX(CASE WHEN Col_Rn = 1 THEN Rss_Name END) AS Col1,
MAX(CASE WHEN Col_Rn = 2 THEN Rss_Name END) AS Col2,
MAX(CASE WHEN Col_Rn = 3 THEN Rss_Name END) AS Col3,
MAX(CASE WHEN Col_Rn = 4 THEN Rss_Name END) AS Col4
FROM (
SELECT Rss_Name,
Row_Number() OVER (ORDER BY Rss_Name) AS Col_Rn -- set your order here
FROM RSS
) t
You need to use Dynamic Pivot. But in your case besides you need an extra column for Column names in Pivot like COL_1, COL_2....
Schema: (From your Image. Its better if you provide this sample data in Text).
CREATE TABLE #TAB (Rss_Name VARCHAR(50))
INSERT INTO #TAB
SELECT 'Sports'
UNION ALL
SELECT 'Talk Sports'
UNION ALL
SELECT 'Sky Sports'
UNION ALL
SELECT 'Crick Info'
Now Prepare your dynamic query as below
DECLARE #SQL VARCHAR(MAX)='',#PVT_COL VARCHAR(MAX)='';
--Preparing Dynamic Column List
SELECT #PVT_COL =#PVT_COL
+ '[COL_'+CAST(ROW_NUMBER() OVER(ORDER BY (SELECT 1)) AS VARCHAR(4))+'],'
FROM #TAB
SELECT #PVT_COL = LEFT(#PVT_COL,LEN(#PVT_COL)-1)
SELECT #SQL =
'SELECT * FROM (
SELECT Rss_Name
,''COL_''+CAST(ROW_NUMBER() OVER(ORDER BY (SELECT 1)) AS VARCHAR(4)) AS COL_NME
FROM #TAB
)AS A
PIVOT
(
MAX(Rss_Name) FOR COL_NME IN ('+#PVT_COL+')
)PVT'
EXEC (#SQL)
Result:
+--------+-------------+------------+------------+
| COL_1 | COL_2 | COL_3 | COL_4 |
+--------+-------------+------------+------------+
| Sports | Talk Sports | Sky Sports | Crick Info |
+--------+-------------+------------+------------+
I have two different columns of strings and I want to check if one is contained in the other and create a third column which has values of either 1 or 0( 1 if column2 contains column 1 and 0 if otherwise)
For example:
Column1 Column2 Column3
Spar I am Sparta 1
How are you Sparta 0
How do you do this string comparison in SQL ?
You could use the charindex function. Assuming you just want to check if colum1 is contained in column2:
SELECT CASE WHEN CHARINDEX(column1, column2) > 0
THEN 1
ELSE 0
END AS column3
FROM mytable
If you need to check both ways, just add another call:
SELECT CASE WHEN CHARINDEX(column1, column2) > 0 OR
CHARINDEX(column2, column1) > 0
THEN 1
ELSE 0
END AS column3
FROM mytable
Try this:
WITH temp(col1, col2) AS(
SELECT 'Spar', 'I am Sparta' UNION ALL
SELECT 'How are you', 'Sparta'
)
SELECT
*,
col3 =
CASE
WHEN col1 like '%' + col2 + '%' or col2 like '%' + col1 + '%' THEN 1
ELSE 0
END
FROM temp
It should work
select column1,column2, (case when column2 like '%' + column1 + '%' then 1 else 0 end) as column3 FROM yourtable
Try this
DECLARE #table1 TABLE
(
Column1 VARCHAR(20),
Column2 VARCHAR(20)
)
INSERT INTO #table1
VALUES ('Spar',
'I am Sparta'),
('How are you',
'Sparta')
SELECT column1,
column2,
CASE
WHEN CHARINDEX(column1, column2) > 0
OR CHARINDEX(column1, column2) > 0 THEN 1
ELSE 0
END AS column3
FROM #table1
I have a table that looks something like
ID Col1 Col2 Col3 Col4
1 3 5 3 3
What I want to do is COUNT the number of 3s in this particular row.
I have tried the
select COUNT(*)
from INFORMATION_SCHEMA.COLUMNS
where TABLE_NAME = 'TableName' -- but obviously I need WHERE Col1 = 3 OR Col2 = 3...
What would be the best way to achieve this?
Based on what OP asked, this can be done
select
CASE WHEN Col1 = 3 then 1 ELSE 0 END +
CASE WHEN Col2 = 3 then 1 ELSE 0 END +
CASE WHEN Col3 = 3 then 1 ELSE 0 END +
CASE WHEN Col4 = 3 then 1 ELSE 0 END
From TableName
I don't really enjoy working with PIVOT so here a solution using APPLY.
SELECT
T.id
, Val
, COUNT(*)
FROM MyTable AS T
CROSS APPLY (
VALUES
(T.C1)
, (T.C2)
, (T.C3)
, (T.C4)
) AS X(Val)
GROUP BY T.Id, X.Val
ORDER BY T.Id, X.val
Please find the sample code:
DECLARE #Query VARCHAR(MAX) = 'SELECT Count = '
SELECT
#Query += '( CASE WHEN '+ COLUMN_NAME + ' = 3 THEN 1 ELSE 0 END ) + '
FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = 'TEST' AND COLUMN_NAME <> 'ID'
SET #Query = SUBSTRING(#Query, 1, DATALENGTH(#Query) - 2) + ' FROM TEST WHERE ID = 1'
EXEC(#Query)
I trying to get a grouping done between 2 rows without a cursor, can some one help me reg this
Col1(int) Col2(int)
--------- ---------
1 20
2 30
3 40
I want output like this
Col1 Col2
---- ----
1-2 50
2-3 70
Are you sure you aren't missing any rows...
Select cast(a.col1 as varchar(10)) + '-' + cast(b.col1 as varchar(10)) as col1,
a.col2 + b.Col2 as Col2
From mytable a
Inner Join mytable b on b.col1 = (a.col1 + 1)
if you might be missing rows, you might need to be more complicated.
That's a tricky one if you don't want to repeat the rows (1-2, 2-3) and you can expect there to be some missing ids (as would be normal if you have an identity field).
Try this:
CREATE TABLE #temp (id INT, value INT)
INSERT INTO #temp
SELECT 1,2
UNION ALL
SELECT 2,8
UNION ALL
SELECT 3,8
UNION ALL
SELECT 5,19
SELECT id, value, ROW_NUMBER() OVER (ORDER BY id) AS rownumber
INTO #temp2
FROM #temp
SELECT * FROM #temp2
SELECT CAST(b.id AS VARCHAR(10)) + '-' + CAST(a.id AS VARCHAR(10)) AS col1,
a.value + b.value as Col2
FROM #temp2 a
JOIN #temp2 b
ON a.rownumber = b.rownumber+1
WHERE ABS(a.rownumber)%2 = 0
Assuming that col1 is integer
SELECT CAST(a.col1 as VARCHAR(10))+ '-' + CAST(b.col1 as VARCHAR(10)), COALESCE(a.col2,0)+COALESCE(b.col2,0)
FROM table a
JOIN table b a.col1 = b.col1 + 1
you can test following query also...
I have oracle in my machine that's why I can run and say only oracle queries..
please check whether this will work on sql server also or not and tell me about ...
select * from
(Select lag (col1) over (order by col1)|| '-' || col1 as col1
col2 + lag (col2) over (order by col1) as Col2
From mytable
)
where col2 is not null;
in oracle lag () function used to fatch last row values.. and if it is first row then this function will give null values.. so that by appling addition on null values you will get null only
by this concept we will get desired output...