I have a column called 'response' that contains lots of data about a person.
I'd like to only return the info after a specific string
But, using the method below I sometimes (when people have <100 IQ) get the | that comes directly after the required number..
I'd like any characters after the'PersonIQ=' but only before the pipe.
I'm not sure of the best way to achieve this.
Query speed is a concern and my idea of nested CASE is likely not the best solution.
Any advice appreciated. Thanks
substring(response,(charindex('PersonIQ=',response)+9),3)
This is my suggestion:
declare #s varchar(200) = 'aaa=bbb|cc=d|PersonIQ=99|e=f|1=2'
declare #iq varchar(10) = 'PersonIQ='
declare #pipe varchar(1) = '|'
select substring(#s,
charindex(#iq, #s) + len(#iq),
charindex(#pipe, #s, charindex(#iq, #s)) - (charindex(#iq, #s) + len(#iq))
)
Instead of the 3 in your formula you should calculate the space between #iq and #pipe with this last part of the formula charindex(#pipe, #s, charindex(#iq, #s)) - (charindex(#iq, #s) + len(#iq)), which gets the first #pipe index after #iq, and then substructs the index of the IQ value.
Assuming there's always a pipe, you could do this:
substring(stuff(reponse,1,charindex('PersonIQ=',reponse)-1,''),1,charindex('|',stuff(reponse,1,charindex('PersonIQ=',reponse)-1,''))-1)
Or, you could convert your string to xml and reference PersonIQ directly, e.g.:
--assuming your string looks something like this..
declare #s varchar(max) = 'asdaf=xxx|PersonIQ=100|xxx=yyy'
select convert(xml, '<x ' + replace(replace(#s, '=', '='''), '|', ''' ') + '''/>').value('(/x/#PersonIQ)[1]','int')
Related
How can I remove value before '_' and show date and time in one row in TSQL Function?
Below is sample:
Declare #inputstring as varchar(50) = 'Studio9_20230126_203052' ;
select value from STRING_SPLIT( #inputstring ,'_')
Output Required: 2023-01-26 20:30:52.000
If we can safely assume that the value is always in the format {Some String}_{yyyyMMdd}_{hhmmss} then you can use STUFF a few times, firstly to remove the leading string up to the first underscore (_) character (using CHARINDEX to find that character), and then to inject 2 colon (:) characters. Finally you can REPLACE the remaining underscore with a space ( ), and then use TRY_CONVERT to attempt to convert the value to a datetime2(0).
DECLARE #inputstring varchar(50) = 'Studio9_20230126_203052';
SELECT TRY_CONVERT(datetime2(0),REPLACE(STUFF(STUFF(STUFF(#inputstring,1,CHARINDEX('_',#inputstring),''),14,0,':'),12,0,':'),'_',' '));
Note that this doesn't give the value you state you want in your question (2023-01-26 20:05:52.000) , but I assume this is a typographical error, and that the 05 for minutes should be 30.
Creating function
CREATE FUNCTION [dbo].[convert_to_date] (#inputstring NVARCHAR(MAX))
RETURNS DATETIME AS
BEGIN
DECLARE #finalString varchar(50), #out varchar(100)
SET #finalString = REPLACE ( (SUBSTRING (#inputstring, CHARINDEX('_', #inputstring)+1 , LEN(#inputstring))), '_', ' ')
--SELECT #finalString
SET #out = LEFT (#finalString, 4) + '-'
+ SUBSTRING(#finalString, 5, 2) + '-'
+ SUBSTRING(#finalString, 7, 2) + ' '
+ SUBSTRING(#finalString, 10, 2) + ':'
+ SUBSTRING(#finalString, 12, 2) + ':'
+ SUBSTRING(#finalString, 14, 2) + '.000'
RETURN #out
END
Select Query
SELECT dbo.[convert_to_date] ('Studio54541659_20230126_203052')
Output
2023-01-26 20:30:52.000
This will tolerate "somestring" in the format of "somestring_YYYYMMDD_HHMISS" being variable in length.
Declare #inputstring as varchar(50) = 'Studio9_20230126_203052' ;
SELECT DateAndTime = CONVERT(DATETIME,STUFF(STUFF(STUFF(v2.DT,14,0,':'),12,0,':'),9,1,' '))
,Identifier = LEFT(#inputstring,v1.Pos1-1) --Included this because I know how people are :D --Comment out if not wanted.
,Original = #inputstring --Original string just for checking. Comment out when happy.
FROM (VALUES(CHARINDEX('_',#inputstring)))v1(Pos1) --Position of first Underscore
CROSS APPLY (VALUES(SUBSTRING(#inputstring,v1.Pos1+1,50)))v2(DT) --String after first Underscore
;
Output looks like this and you end up with a DATETIME datatype. Comment out what you don't want for columns in the return.
I'll let you have some of the fun by converting it into an iTVF (inline Table Valued Function). Remember that any function that contains a "BEGIN" is ultimately going to be a part of a performance issue so make sure it's an iTVF :D
EDIT: Crud... I've gotta remember to scroll down. #Lamu already posted the same thing but it's probably better and fast if you just want the time and not the identifier I included.
I have a string column in my table that contains 'Character-separated' data such as this:
"Value|Data|4|Z|11/06/2012"
This data is fed into a 'parser' and deserialised into a particular object. (The details of this aren't relevant and can't be changed)
The structure of my object has changed and now I would like to get rid of some of the 'sections' of data
So I want the previous value to turn into this
"Value|Data|11/06/2012"
I was hoping I might be able to get some help on how I would go about doing this in T-SQL.
The data always has the same number of sections, 'n' and I will want to remove the same sections for all rows , 'n-x and 'n-y'
So far I know I need an update statement to update my column value.
I've found various ways of splitting a string but I'm struggling to apply it to my scenario.
In C# I would do
string RemoveSecitons(string value)
{
string[] bits = string.split(value,'|');
List<string> wantedBits = new List<string>();
for(var i = 0; i < bits.Length; i++)
{
if ( i==2 || i==3) // position of sections I no longer want
{
continue;
}
wantedBits.Add(bits[i]);
}
return string.Join(wantedBits,'|');
}
But how I would do this in SQL I'm not sure where to start. Any help here would be appreciated
Thanks
Ps. I need to run this SQL on SQL Server 2012
Edit: It looks like parsing to xml in some manner could be a popular answer here, however I can't guarantee my string won't have characters such as '<' or '&'
Using NGrams8K you can easily write a nasty fast customized splitter. The logic here is based on DelimitedSplit8K. This will likely outperform even the C# code you posted.
DECLARE #string VARCHAR(8000) = '"Value|Data|4|Z|11/06/2012"',
#delim CHAR(1) = '|';
SELECT newString =
(
SELECT SUBSTRING(
#string, split.pos+1,
ISNULL(NULLIF(CHARINDEX(#delim,#string,split.pos+1),0),8000)-split.pos)
FROM
(
SELECT ROW_NUMBER() OVER (ORDER BY d.Pos), d.Pos
FROM
(
SELECT 0 UNION ALL
SELECT ng.position
FROM samd.ngrams8k(#string,1) AS ng
WHERE ng.token = #delim
) AS d(Pos)
) AS split(ItemNumber,Pos)
WHERE split.ItemNumber IN (1,2,5)
ORDER BY split.ItemNumber
FOR XML PATH('')
);
Returns:
newString
----------------------------
"Value|Data|11/06/2012"
Not the most elegant way, but works:
SELECT SUBSTRING(#str,1, CHARINDEX('|',#str,CHARINDEX('|',#str,1)+1)-1)
+ SUBSTRING(#str, CHARINDEX('|',#str,CHARINDEX('|',#str,CHARINDEX('|',#str,CHARINDEX('|',#str,1)+1)+1)+1), LEN(#str))
----------------------
Value|Data|11/06/2012
You might try some XQuery:
DECLARE #s VARCHAR(100)='Value|Data|4|Z|11/06/2012';
SELECT CAST('<x>' + REPLACE(#s,'|','</x><x>') + '</x>' AS XML)
.value('concat(/x[1],"|",/x[2],"|",/x[5])','nvarchar(max)');
In short: The value is trasformed to XML by some string replacements. Then we use the XQuery-concat to bind the first, the second and the fifth element together again.
This version is a bit less efficient but safe with forbidden characters:
SELECT CAST('<x>' + REPLACE((SELECT #s AS [*] FOR XML PATH('')),'|','</x><x>') + '</x>' AS XML)
.value('concat(/x[1],"|",/x[2],"|",/x[5])','nvarchar(max)')
Just to add a non-xml option for fun:
Edit and Caveat - In case anyone tries this for a different solution and doesn't read the comments...
HABO rightly noted that this is easily broken if any of the columns have a period (".") in them. PARSENAME is dependent on a 4 part naming structure and will return NULL if that is exceeded. This solution will also break if any values ever contain another pipe ("|") or another delimited column is added - the substring in my answer is specifically there as a workaround for the dependency on the 4 part naming. If you are trying to use this solution on, say, a variable with 7 delimited columns, it would need to be reworked or scrapped in favor of one of the other answers here.
DECLARE
#a VARCHAR(100)= 'Value|Data|4|Z|11/06/2012'
SELECT
PARSENAME(REPLACE(SUBSTRING(#a,0,LEN(#a)-CHARINDEX('|',REVERSE(#a))+1),'|','.'),4)+'|'+
PARSENAME(REPLACE(SUBSTRING(#a,0,LEN(#a)-CHARINDEX('|',REVERSE(#a))+1),'|','.'),3)+'|'+
SUBSTRING(#a,LEN(#a)-CHARINDEX('|',REVERSE(#a))+2,LEN(#a))
Here is a quick way to do it.
CREATE FUNCTION [dbo].StringSplitXML
(
#String VARCHAR(MAX), #Separator CHAR(1)
)
RETURNS #RESULT TABLE(id int identity(1,1),Value VARCHAR(MAX))
AS
BEGIN
DECLARE #XML XML
SET #XML = CAST(
('<i>' + REPLACE(#String, #Separator, '</i><i>') + '</i>')
AS XML)
INSERT INTO #RESULT
SELECT t.i.value('.', 'VARCHAR(MAX)')
FROM #XML.nodes('i') AS t(i)
WHERE t.i.value('.', 'VARCHAR(MAX)') <> ''
RETURN
END
GO
SELECT * FROM dbo.StringSplitXML( 'Value|Data|4|Z|11/06/2012','|')
WHERE id not in (3,4)
Note that using a UDF will slow things down, so this solution should be considered only if you have a reasonably small data set to work with.
I would like to remove all characters before and after a string in the select statement.
In the example below I would like to remove everything before and including /Supply> and after and including >/
Note the remaining part will be a fixed number of characters.
Any help would be much appreciated
Eg.
abs/Supply>hhfhjgglldppprrr>/llllllldsfsjhfhhhfdhudfhfhdhdfhfsd
Would become:
hhfhjgglldppprrr
If your input always has exactly two instances of ">" you could use PARSENAME.
declare #SomeValue varchar(100) = 'abs/Supply>hhfhjgglldppprrr>/llllllldsfsjhfhhhfdhudfhfhdhdfhfsd'
select PARSENAME(replace(#SomeValue, '>', '.'), 2)
This will not work correctly if your data also contains any periods (.). We can deal with that if needed with a couple of replace statements. Still very simple and easy to maintain with the same caveat of exactly 2 >.
declare #SomeOtherValue varchar(100) = 'abs/Supply>hhfhjgg.lldppprrr>/llllllldsfsjhfhhhfdhudfhfhdhdfhfsd'
select replace(PARSENAME(replace(replace(#SomeOtherValue, '.', '~!##'), '>', '.'), 2), '~!##', '.')
You can use PATINDEX() to identify the position of the patterns you are looking for (/Supply> and >/) then remove them based on the length of the string:
SELECT LEFT(RIGHT(col,LEN(col) - PATINDEX('%/Supply>%',col) -7), PATINDEX('%>/%', RIGHT(col,LEN(col) - PATINDEX('%Supply>%',col) -7))-1)
Simply replace col in the above with your column name.
Example below with test string abs/Supply>keep>/remove
First remove everything before and including /Supply>:
SELECT RIGHT('abs/Supply>keep>/remove',LEN('abs/Supply>keep>/remove') - PATINDEX('%/Supply>%','abs/Supply>keep>/remove') -7)
This will give keep>/remove
Then remove everything after and including >/:
SELECT LEFT('keep>/remove',PATINDEX('%>/%','keep>/remove') - 1)
This will give keep, the part of the string you want.
Here is the combined version, same as above, just includes the test string instead of col so you can run it easily:
SELECT LEFT(RIGHT('abs/Supply>keep>/remove',LEN('abs/Supply>keep>/remove') - PATINDEX('%/Supply>%','abs/Supply>keep>/remove') -7), PATINDEX('%>/%', RIGHT('abs/Supply>keep>/remove',LEN('abs/Supply>keep>/remove') - PATINDEX('%/Supply>%','abs/Supply>keep>/remove') -7))-1)
This will give keep. You can also replace the string above with the one in your question, I just used a different test string because it is shorter and makes the code more readable.
try this:
DECLARE #inputStr VARCHAR(max)= 'abs/Supply>hhfhjgglldppprrr>/llllllldsfsjhfhhhfdhudfhfhdhdfhfsd'
DECLARE #startString VARCHAR(100)='/Supply>'
DECLARE #EndString VARCHAR(100)='>/'
DECLARE #LenStartString INT = LEN(#startString)
DECLARe #TempInputString VARCHAR(max)='';
DECLARE #StartIndex INT
DECLARE #EndIndex INT
SELECT #StartIndex = CHARINDEX(#startString,#inputStr)+#LenStartString
SELECT #TempInputString = STUFF(#inputStr, 1, #StartIndex, '')
SELECT SUBSTRING(#TempInputString,0,CHARINDEX(#EndString,#TempInputString))
In Single Line
DECLARE #inputStr VARCHAR(max)= 'abs/Supply>hhfhjgglldppprrr>/llllllldsfsjhfhhhfdhudfhfhdhdfhfsd'
DECLARE #startString VARCHAR(100)='/Supply>'
DECLARE #EndString VARCHAR(100)='>/'
SELECT SUBSTRING(STUFF(#inputStr, 1, CHARINDEX(#startString,#inputStr)+LEN(#startString), ''),0,CHARINDEX(#EndString,STUFF(#inputStr, 1,CHARINDEX(#startString,#inputStr)+LEN(#startString), '')))
I am trying to extract the text between two characters using t-sql. I have been able to write it where it pulls the information close to what I want, but for some reason I am not getting what i am expecting(suprise, suprise). Could really use alittle help refining it. I am trying to extract part of the table name that is located between two [ ]. An example of the column data is as follows(this is a table that records all changes made to the database so the column text is basically SQL statements):
ALTER TABLE [TABLENAME].[MYTABLE] ADD
[VIP_CUSTOMER] [int] NULL
I am trying to extract part of the table name, in this example I just want 'MYTABLE'
Right now I am using:
select SUBSTRING(db.Event_Text, CHARINDEX('.', db.Event_Text) + 2, (CHARINDEX(']', db.Event_Text)) - CHARINDEX('', db.Event_Text) + Len(']')) as OBJName
FROM DBA_AUDIT_EVENT DB
WHERE DATABASE_NAME = 'XYZ'
But when I use this, I don't always get the results needed. Sometimes I get 'MYTABLE] ADD' and sometimes I get the part of the name I want, and sometimes depending on the length of the tablename I only get part the first part of the name with part of the name cut off at the end. Is there anyway to get this right, or is there a better way of writing it? Any help would be greatly appreciated. Thanks in advance.
Long, but here's a formula using the brackets:
Declare #text varchar(200);
Select #text='ALTER TABLE [TABLENAME].[MYTABLE] ADD [VIP_CUSTOMER] [int] NULL';
Select SUBSTRING(#text,
CHARINDEX('[', #text, CHARINDEX('[', #text) + 1 ) +1,
CHARINDEX(']', #text, CHARINDEX('[', #text, CHARINDEX('[', #text) + 1 ) ) -
CHARINDEX('[', #text, CHARINDEX('[', #text) + 1 ) - 1 );
Replace #text with your column name.
Give this a shot:
select SUBSTRING(db.Event_Text, CHARINDEX('.', db.Event_Text) + 2
, CHARINDEX(']', db.Event_Text) - 2) as OBJName
FROM DBA_AUDIT_EVENT DB
WHERE DATABASE_NAME = 'XYZ'
this is a pretty ugly way to get the length, but I've used something like this before:
select SUBSTRING(db.Event_Text,
CHARINDEX('.', db.Event_Text) + 2,
charindex('] ADD',db.Event_Text) - CHARINDEX('.',db.Event_Text)-2))
Give it a try, it may work for you.
I need to return two fields from a database concatenated as 'field1-field2'. The second field is an int, but needs to be returned as a fixed length of 5 with leading 0's. The method i'm using is:
SELECT Field1 + '-' + RIGHT('0000' + CAST(Field2 AS varchar),5) FROM ...
Is there a more efficient way to do this?
That is pretty much the way: Adding Leading Zeros To Integer Values
So, to save following the link, the query looks like this, where #Numbers is the table and Num is the column:
SELECT RIGHT('000000000' + CONVERT(VARCHAR(8),Num), 8) FROM #Numbers
for negative or positive values
declare #v varchar(6)
select #v = -5
SELECT case when #v < 0
then '-' else '' end + RIGHT('00000' + replace(#v,'-',''), 5)
Another way (without CAST or CONVERT):
SELECT RIGHT(REPLACE(STR(#NUM),' ','0'),5)
If you can afford/want to have a function in your database you could use something like:
CREATE FUNCTION LEFTPAD
(#SourceString VARCHAR(MAX),
#FinalLength INT,
#PadChar CHAR(1))
RETURNS VARCHAR(MAX)
AS
BEGIN
RETURN
(SELECT Replicate(#PadChar, #FinalLength - Len(#SourceString)) + #SourceString)
END
I would do it like this.
SELECT RIGHT(REPLICATE('0', 5) + CAST(Field2 AS VARCHAR(5),5)
Not necessarily all that "Easier", or more efficient, but better to read. Could be optimized to remove the need for "RIGHT"
If you want to get a consistent number of total strings in the final result by adding different number of zeros, here is a little bit modification (for vsql)
SELECT
CONCAT(
REPEAT('0', 9-length(TO_CHAR(var1))),
CAST(var1 AS VARCHAR(9))
) as var1
You can replace 9 by any number for your need!
BRD