column1
\\abc\tri\eds\rf1\edr\4ed
\\f.d\tri\ef\poe
\\ghi0j\tri\gf\rf\k\hg\ose
'
'
'
i got some rows like that in a column
now i want to get the result set like
\\abc\tri\eds
\\f.d\tri\ef\
\\ghij\tri\gf
simply from first '\' to end of 4th '\'
In this week's episode of Horrible Code I Have Written For StackOverflow...
SELECT
SUBSTRING(column1, 1,
CHARINDEX('\', column1,
CHARINDEX('\', column1,
CHARINDEX('\', column1, 3) + 1) + 1))
FROM
TableName
Related
I work with SQL Server 2012 and face an issue: I can't display Text Unit only one time where it repeated for feature using Stuff.
What I need is when Text Unit is repeated for same feature, then no need to repeat it - only display it once.
In my case, I face issue that I can't prevent repeat Text Unit when It be same Text Unit for same Feature.
Voltage | Voltage | Voltage ONLY one Voltage display .
CREATE TABLE #FinalTable
(
PartID INT,
DKFeatureName NVARCHAR(100),
TextUnit NVARCHAR(100),
StatusId INT
)
INSERT INTO #FinalTable (PartID, DKFeatureName, TextUnit, StatusId)
VALUES
(1211, 'PowerSupply', 'Voltage', 3),
(1211, 'PowerSupply', 'Voltage', 3),
(1211, 'PowerSupply', 'Voltage', 3)
SELECT
PartID, DKFeatureName,
COUNT(PartID) AS CountParts,
TextUnit = STUFF ((SELECT ' | ' + TextUnit
FROM #FinalTable b
WHERE b.PartID = a.PartID
AND a.DKFeatureName = b.DKFeatureName
AND StatusId = 3
FOR XML PATH('')), 1, 2, ' ')
INTO
#getUnitsSticky
FROM
#FinalTable a
GROUP BY
PartID, DKFeatureName
HAVING
(COUNT(PartID) > 1)
SELECT *
FROM #getUnitsSticky
Expected result is :
Voltage
Incorrect result or result I don't need is as below :
Voltage|Voltage|Voltage
TomC's answer is basically correct. However, when using this method with SQL Server, it is usually more efficient to get the rows in a subquery and then use stuff() in the outer query. That way, the values in each row are processed only once.
So:
SELECT PartID, DKFeatureName, CountParts,
STUFF( (SELECT ' | ' + TextUnit
FROM #FinalTable b
WHERE b.PartID = a.PartID AND
b.DKFeatureName = a.DKFeatureName AND
StatusId = 3
FOR XML PATH('')
), 1, 3, ' ') as TextUnit
INTO #getUnitsSticky
FROM (SELECT PartID, DKFeatureName, COUNT(*) as CountParts
FROM #FinalTable a
GROUP BY PartID, DKFeatureName
HAVING COUNT(*) > 1
) a;
This also removes the leading space from the concatenated result.
To put this into a complete answer - this should be your SQL (shortened slightly and removed the last temp table):
SELECT
PartID, DKFeatureName,
COUNT(PartID) AS CountParts,
TextUnit = STUFF ((SELECT distinct ' | ' + TextUnit
FROM #FinalTable b
WHERE b.PartID = a.PartID
AND a.DKFeatureName = b.DKFeatureName
AND StatusId = 3
FOR XML PATH('')), 1, 2, ' ')
FROM #FinalTable a
GROUP BY PartID, DKFeatureName
HAVING (COUNT(PartID) > 1)
My records in the table are as follows:
id column1
1 'Record1'
2 ' Record2'
3 ' Record3a, Record3b'
4 'Record4a , Record4b, Record4c '
column1 type: text
pre-defined array= {record1,record2,record3a}
While I'm checking the values with a pre-defined array using && operator, most of the values are missed because of the delimiter space between those which are unnecessary.
Hence I need to first remove these space that are there in beginning or end (only) and then do string_to_array() so that the result could be compared to my pre-defined array
Use trim() to remove leading a trailing whitespace:
SELECT string_to_array(trim(both ' ' from regexp_replace(column1, '\s*,\s*', ',')), ',')
FROM yourTable
SELECT string_to_array(trim(both ' ' from regexp_replace(column1,
'\s*,\s*', ',')), ',') FROM yourTable
It works, but the 'g' flag should be added to remove all whitespaces:
SELECT string_to_array(
trim(both ' ' from regexp_replace(column1, '\s*,\s*', ',')), ',','g')
FROM yourTable
I have a table in with the following layout:
CREATE TABLE dbo.tbl (
Ten_Ref VARCHAR(20) NOT NULL,
Benefit VARCHAR(20) NOT NULL
);
INSERT INTO dbo.tbl (Ten_Ref, Benefit)
VALUES ('1', 'HB'),
('1', 'WTC'),
('1', 'CB'),
('2', 'CB'),
('2', 'HB'),
('3', 'WTC');
I then run this code to perform a transform and concatenation (I need all the benefit information in one field'
with [pivot] as
(
SELECT Ten_Ref
,[HB] = (Select Benefit FROM tbl WHERE t.Ten_Ref = Ten_Ref and Benefit = 'HB')
,[CB] = (Select Benefit FROM tbl WHERE t.Ten_Ref = Ten_Ref and Benefit = 'CB')
,[WTC] = (Select Benefit FROM tbl WHERE t.Ten_Ref = Ten_Ref and Benefit = 'WTC')
/*Plus 7 more of these*/
FROM tbl as t
GROUP BY Ten_Ref
)
select p.ten_Ref
/*A concatenation to put them all in one field, only problem is you end up with loads of spare commas*/
,[String] = isnull (p.HB,0) + ',' + isnull (p.cb,'') + ',' + isnull (p.wtc,'')
from [pivot] as p
My problem is not every ten_ref has all of the Benefits attached.
Using this code, where there is a gap or NULL then I end up with loads of double commas e.g 'HB,,WTC'
How can I get it so it is only one comma, regardless of the amount of benefits each tenancy has?
Are you looking for something like this?
SELECT A.Ten_Ref,
STUFF(CA.list,1,1,'') list
FROM tbl A
CROSS APPLY(
SELECT ',' + Benefit
FROM tbl B
WHERE A.Ten_Ref = B.Ten_Ref
ORDER BY Benefit
FOR XML PATH('')
) CA(list)
GROUP BY A.ten_ref,CA.list
Results:
Ten_Ref list
-------------------- ------------------
1 CB,HB,WTC
2 CB,HB
3 WTC
Or if you really want to use pivot and manually concatenate, you could do this:
SELECT Ten_Ref,
--pvt.*,
ISNULL(HB + ',','') + ISNULL(CB + ',','') + ISNULL(WTC + ',','') AS list
FROM tbl
PIVOT
(
MAX(Benefit) FOR Benefit IN([HB],[CB],[WTC])
) pvt
I often use queries like:
SELECT *
FROM ThisTable
OUTER APPLY (SELECT (SELECT SomeField + ' ' AS [data()]
FROM SomeTable
WHERE SomeTable.ID = ThisTable.ID
FOR XML PATH ('')) AS ConcatenatedSomeField) A
I often want to get multiple concatenated concatenated fields from this table, instead of just one. I could logically do this:
SELECT *
FROM ThisTable
OUTER APPLY (SELECT (SELECT SomeField + ' ' AS [data()]
FROM SomeTable
WHERE SomeTable.ID = ThisTable.ID
FOR XML PATH ('')) AS ConcatenatedSomeField) A
OUTER APPLY (SELECT (SELECT SomeField2 + ' ' AS [data()]
FROM SomeTable
WHERE SomeTable.ID = ThisTable.ID
FOR XML PATH ('')) AS ConcatenatedSomeField2) B
OUTER APPLY (SELECT (SELECT SomeField3 + ' ' AS [data()]
FROM SomeTable
WHERE SomeTable.ID = ThisTable.ID
FOR XML PATH ('')) AS ConcatenatedSomeField3) C
But it looks crappy and error prone when anything needs to be updated; also SomeTable is often a long list of joined tables so it could also have performance implications getting the same tables over and over.
Is there a better way to do this?
Thanks.
You could do something like this. Instead of immediately sending the XML value to a string, this query uses the TYPE keyword to return an xml type object which can then be queried. The three query functions search the xml object for all instances of the Somefield element and return a new xml object containing just those values. Then the value function strips out the xml tags surrounding the values and passes them into a varchar(max)
SELECT ThisTable.ID
,[A].query('/Somefield').value('/', 'varchar(max)') AS [SomeField_Combined]
,[A].query('/Somefield2').value('/', 'varchar(max)') AS [SomeField2_Combined]
,[A].query('/Somefield3').value('/', 'varchar(max)') AS [SomeField3_Combined]
FROM ThisTable
OUTER APPLY (
SELECT (
SELECT SomeField + ' ' AS [SomeField]
,SomeField2 + ' ' AS [SomeField2]
,SomeField3 + ' ' AS [SomeField3]
FROM SomeTable
WHERE SomeTable.ID = ThisTable.ID
FOR
XML PATH('')
,TYPE
) AS [A]
) [A]
You can create a CLR User-Defined Aggregate Function that does the concatenation for you.
Your code would then look like this instead.
select S.ID,
dbo.Concat(S.SomeField1),
dbo.Concat(S.SomeField2),
dbo.Concat(S.SomeField3)
from SomeTable as S
group by S.ID
This is the same answer as I gave here: https://dba.stackexchange.com/questions/125771/multiple-column-concatenation/
The OP of that question referenced the answer given here. You can see below that sometimes the simplest answer can be the best. If SomeTable is multiple tables then I would go ahead and put it into a CTE to avoid having the same complex code multiple times.
I ran a few tests using a little over 6 mil rows. With an index on the ID column.
Here is what I came up with.
Your initial query:
SELECT * FROM (
SELECT t.id,
stuff([M].query('/name').value('/', 'varchar(max)'),1,1,'') AS [SomeField_Combined1],
stuff([M].query('/car').value('/', 'varchar(max)'),1,1,'') AS [SomeField_Combined2]
FROM dbo.test t
OUTER APPLY(SELECT (
SELECT id, ','+name AS name
,','+car AS car
FROM test WHERE test.id=t.id
FOR XML PATH('') ,type)
AS M)
M ) S
GROUP BY id, SomeField_Combined1, SomeField_Combined2
This one ran for ~23 minutes.
I ran this version which is the version I first learned. In some ways it seems like it should take longer but it doesn't.
SELECT test.id,
STUFF((SELECT ', ' + name
FROM test ThisTable
WHERE test.id = ThisTable.id
FOR XML PATH ('')),1,2,'') AS ConcatenatedSomeField,
STUFF((SELECT ', ' + car
FROM test ThisTable
WHERE test.id = ThisTable.id
FOR XML PATH ('')),1,2,'') AS ConcatenatedSomeField2
FROM test
GROUP BY id
This version ran in just over 2 minutes.
Is there a built in function (as opposed to a UDF) or can someone provide sample code to split a String to two columns when a character is encountered?
Sample:
1234:abcd
split the above string into 1234 and abcd into two columns
Have a go with this. Its not pretty but it produces the two columns (assuming : is always the divider):
declare #test varchar(20)
set #test = '1234:abcd'
select
leftcol = left(#test,charindex(':',#test)-1),
rightcol = right(#test,len(#test) - charindex(':',#test))
In otherwords, its not a build in function, but it is inline sql code.
Title/tag mismatch?
For Excel, if A1 contains the value:
make B1 =LEFT(A1,IF(ISERROR(FIND(":",A1)),LEN(A1),FIND(":",A1)-1))
make C1 =RIGHT(A1,IF(ISERROR(FIND(":",A1)),0,LEN(A1)-FIND(":",A1)))
Or for T-SQL + a string variable;
DECLARE #F VARCHAR(64) = '1234:ABCD'
IF #F LIKE '%:%'
SELECT SUBSTRING(#F, 1, CHARINDEX(':', #F, 1) - 1) AS COL1,
SUBSTRING(#F, CHARINDEX(':', #F, 1) + 1, LEN(#F)) AS COL2
ELSE
SELECT #F AS COL1, NULL AS COL2
for a select;
;WITH faketable (fld) AS (
SELECT 'aaa:123' as fld
UNION SELECT 'ddddd'
)
SELECT
CASE WHEN fld LIKE '%:%' THEN SUBSTRING(fld, 1, CHARINDEX(':', fld, 1) - 1) ELSE fld END AS COL1 ,
CASE WHEN fld LIKE '%:%' THEN SUBSTRING(fld, CHARINDEX(':', fld, 1) + 1, LEN(fld)) ELSE NULL END AS COL2
FROM faketable
>COL1 COL2
>aaa 123
>ddddd NULL