get sub string in between mix symbols - sql

I want to get sub string my output should look like gmail,outlook,Skype.
my string values are
'abc#gmail.com'
'cde.nitish#yahoo.com'
'xyz.vijay#sarvang.com.com'
somthing like this as you can see its having variable length with mix symbol '.' and '#'
string values store in table form as a column name Mail_ID and Table name is tbl_Data
i am using sql server 2012
i use chart index for getting sub string
select SUBSTRING(Mail_ID, CHARINDEX('#',MAil_ID)+1, (CHARINDEX('.',MAil_ID) - (CHARINDEX('#', Mail_ID)+1)))
from tbl_data
And i want my output like:
'gmail'
'yahoo'
'sarvang'
Please help me i am newbies in sql server

This is my solution. I first get the position of the '#', and then get the position of the '.' in the string prior to it (the '#'). Then I can use those results to get the appropriate substring:
SELECT V.YourString,
SUBSTRING(V.YourString,D.I,A.I - D.I) AS StringPart
FROM (VALUES('abc#gmail.com'),
('cde.nitish#yahoo.com'),
('xyz.vijay#sarvang.com.com'))V(YourString)
CROSS APPLY(VALUES(CHARINDEX('#',V.YourString)))A(I) --Get position of # to not repeat logic
CROSS APPLY(VALUES(CHARINDEX('.',LEFT(V.YourString,A.I))+1))D(I) --Get position of . to not repeat logic
Note for value of 'abc.def.steve#... it would return 'def.steve'; however, we don't have such an example so I don't know what the correct return value would be.

I'm posting this as a new answer, a the OP moved the goal posts from the original answer. My initial answer was based on their original question, not their "new" one, and it seems silly to remove an answer that was correct at the time:
SELECT V.YourString,
SUBSTRING(V.YourString,A.I, D.I - A.I) AS StringPart
FROM (VALUES('abc#gmail.com'),
('cde.nitish#yahoo.com'),
('xyz.vijay#sarvang.com.com'))V(YourString)
CROSS APPLY(VALUES(CHARINDEX('#',V.YourString)+1))A(I)
CROSS APPLY(VALUES(CHARINDEX('.',V.YourString,A.I)))D(I);

This answers the original version of the question.
This may be simplest with a case expression to detect if there is a period before the '#':
select (case when email like '%.%#%'
then stuff(left(email, charindex('#', email) - 1), 1, charindex('.', email), '')
else left(email, charindex('#', email) - 1)
end)
from (values ('abc#gmail.com'), ('cde.nitish#yahoo.com'), ('xyz.vijay#sarvang.com.com')) v(email)

I create a temp table with your data and write below query its worked
CREATE TABLE #T
(
DATA NVARCHAR(50)
)
INSERT INTO #T
VALUES('abc#gmail.com'),
('cde.nitish#yahoo.com'),
('xyz.vijay#sarvang.com.com')
SELECT *,LEFT(RIGHT(DATA,LEN(DATA)-CHARINDEX('#',DATA,1)),CHARINDEX('.',RIGHT(DATA,LEN(DATA)-CHARINDEX('#',DATA,1)),1)-1)
FROM #t
AND its a output of my T-SQL
abc#gmail.com gmail
cde.nitish#yahoo.com yahoo
xyz.vijay#sarvang.com.com sarvang

Related

SQL String split and update field

I have table Project with a column name Name with values in the format SYS_12345_Value. I want to update this Name field such that its value in every row is replaced by the term after second _ in its value.
At the moment it looks like SYS_82058_INDIGO and I want to replace it with INDIGO and the same for all the rows in the table.
Any help is appreciated. Thanks alot.
UPDATE : Tried #GordonLinoff's solution as follows
UPDATE Project
SET Name = (select right(str, charindex('_', reverse(str)) - 1) from (values (Name)) v(str))
WHERE Name like '%SYS%'
String manipulation in SQL Server is usually tricky. But if you want the last component, you can use:
select *,
right(str, charindex('_', reverse(str)) - 1)
from (values ('SYS_82058_INDIGO')) v(str)
Use a couple of nested CHARINDEX functions. This assumes that every row has 2 underscore (_) characters:
UPDATE dbo.YourTable
SET YourColumn = STUFF(YourColumn,1,CHARINDEX('_',YourColumn,CHARINDEX('_',YourColumn)+1),'');

TSQL extract part of string with regex

i would make a script that iterate over the records of a table with a cursor
and extract from a column value formatted like that "yyy://xx/bb/147011"
only the final number 147011and to put this value in a variable.
It's possible to do something like that?
Many thanks.
You don't need a cursor for this. You can just use a query. The following gets everything after the last /:
select right(str, charindex('/', reverse(str)) - 1 )
from (values ('yyy://xx/bb/147011')) v(str)
It does not specifically check if it is a number, but that can be added as well.
You can also use the below query.
SELECT RIGHT(RTRIM('yyy://xx/bb/147011'),
CHARINDEX('/', REVERSE('/' + RTRIM('yyy://xx/bb/147011'))) - 1) AS LastWord
If numeric value has exact position defined with sample data, then you can do :
SELECT t.*, SUBSTRING(t.col, PATINDEX('%[0-9]%', t.col), LEN(t.col))
FROM table t;

stripping just the filename from a string in sql by looking at the '/' dash character

I would like to know how to accomplish getting just the file name from the below
C:\Users\avs\Desktop\Testing\Text Files\TargetFolder\PN005337.RCS
the PN005337.RCS file name can vary in name and length. However the only definitive way of capturing it would be looking at the last '\' and then bringing back any thing after the very last '\'.
Anyway to do that in sql. This is a column in sql server, but the report owner just wants to see the name.
I am doing this in SSIS so either solution would be great in an expression or in SQL.
Thank you
You could determine the index of the last slash by first REVERSE the path and then find the slash by means of CHARINDEX.
Finally you extract the filename applying to the original path the function RIGHT using the found index.
The expression would be RIGHT(path, CHARINDEX('/', REVERSE(path)) - 1)
A case for CROSS APPLY to make intermediate computations
declare #t table (full_path varchar(max));
insert #t values
('C:\Users\avs\Desktop\Testing\Text Files\TargetFolder\PN005337.RCS'),
('C:PN005337.RCS'),
('PN005337.RCS');
SELECT full_path,
CASE WHEN pback>=0 THEN RIGHT(full_path, pback)
WHEN pcol>=0 THEN RIGHT(full_path, pcol)
ELSE full_path
END as fname
FROM #t
CROSS APPLY (
SELECT pback= CHARINDEX('\', REVERSE(full_path)) -1, pCol = CHARINDEX(':', REVERSE(full_path)) -1
) pp

SQL Query Remove Part of Path/Null

So I am new the whole SQL Query business but I need some help with two issues. My goal is to have anything in the Column "EnvironmentName" that has the word "Database" in Column "NodeName" to be displayed in the query results. I did this with
FROM [Backbone_ASPIDER].[dbo].[vw_CFGsvr_Con]
WHERE NodeName = 'Database'
ORDER BY EnvironmentName asc
WHERE NodePath
Results of Query:
I am able to get my query results but would like to remove the rows with NULL. I have tried to use "IS NOT NULL" but SQL Server Management Studio labeles this as "incorrect syntax."
What I have tried:
FROM [Backbone_ASPIDER].[dbo].[vw_CFGsvr_Con]
WHERE NodeName = 'Database'
ORDER BY EnvironmentName asc IS NOT NULL
WHERE NodePath
Thank you in advance!
Your query is pretty close..
1: You have to specify a specific column to not be null while using IS NOT NULL.
So modify your query to:
FROM [Backbone_ASPIDER].[dbo].[vw_CFGsvr_Con]
WHERE NodeName = 'Database' AND EnvironmentName IS NOT NULL
ORDER BY EnvironmentName asc
WHERE NodePath
2: Check out this article about trimming parts of strings from query results
http://basitaalishan.com/2014/02/23/removing-part-of-string-before-and-after-specific-character-using-transact-sql-string-functions/
Where clause will come first and Then order by statement
Like following way
Select * FROM [Backbone_ASPIDER].[dbo].[vw_CFGsvr_Con]
WHERE [Backbone_ASPIDER].[dbo].[vw_CFGsvr_Con].[NodeName] = 'Database' AND [Backbone_ASPIDER].[dbo].[vw_CFGsvr_Con].[EnvironmentName] IS NOT NULL
ORDER BY [Backbone_ASPIDER].[dbo].[vw_CFGsvr_Con].[EnvironmentName] asc
EDIT: I just noticed you removed this from your OP, so feel free to disregard if you took care of that.
I don't think anyone addressed the substring problem yet. There's several ways you could get at this depending on how complex the strings are you have to slice up, but here's how I'd do it
-- Populating some fake data, representative of what you've got
if object_id('tempdb.dbo.#t') is not null drop table #t
create table #t
(
nPath varchar(1000)
)
insert into #t
select '/Database/Mappings/Silver/Birthday' union all
select '/Database/Connections/Blue/Happy'
-- First, get the character index of the first '/' after as many characters the word '/database/' takes up.
-- You could have hard coded this value too. Add 1 to it so that it moves PAST the slash.
;with a as
(
select
ixs = charindex('/', nPath, len('/Database/') + 1),
-- Get everything to the right of what you just determined with all the charindex() stuff
ss = right(nPath, len(nPath) - charindex('/', nPath, len('/Database/') + 1)),
nPath
from #t
)
-- Now just take the left of the now-cleaned-up string from start to the first pipe
select
ixs,
ss,
color = left(ss, charindex('/', ss) -1),
nPath
from a

SQL strip text and convert to integer

In my database (SQL 2005) I have a field which holds a comment but in the comment I have an id and I would like to strip out just the id, and IF possible convert it to an int:
activation successful of id 1010101
The line above is the exact structure of the data in the db field.
And no I don't want to do this in the code of the application, I actually don't want to touch it, just in case you were wondering ;-)
This should do the trick:
SELECT SUBSTRING(column, PATINDEX('%[0-9]%', column), 999)
FROM table
Based on your sample data, this that there is only one occurence of an integer in the string and that it is at the end.
I don't have a means to test it at the moment, but:
select convert(int, substring(fieldName, len('activation successful of id '), len(fieldName) - len('activation successful of id '))) from tableName
Would you be open to writing a bit of code? One option, create a CLR User Defined function, then use Regex. You can find more details here. This will handle complex strings.
If your above line is always formatted as 'activation successful of id #######', with your number at the end of the field, then:
declare #myColumn varchar(100)
set #myColumn = 'activation successful of id 1010102'
SELECT
#myColumn as [OriginalColumn]
, CONVERT(int, REVERSE(LEFT(REVERSE(#myColumn), CHARINDEX(' ', REVERSE(#myColumn))))) as [DesiredColumn]
Will give you:
OriginalColumn DesiredColumn
---------------------------------------- -------------
activation successful of id 1010102 1010102
(1 row(s) affected)
select cast(right(column_name,charindex(' ',reverse(column_name))) as int)
CAST(REVERSE(LEFT(REVERSE(#Test),CHARINDEX(' ',REVERSE(#Test))-1)) AS INTEGER)
-- Test table, you will probably use some query
DECLARE #testTable TABLE(comment VARCHAR(255))
INSERT INTO #testTable(comment)
VALUES ('activation successful of id 1010101')
-- Use Charindex to find "id " then isolate the numeric part
-- Finally check to make sure the number is numeric before converting
SELECT CASE WHEN ISNUMERIC(JUSTNUMBER)=1 THEN CAST(JUSTNUMBER AS INTEGER) ELSE -1 END
FROM (
select right(comment, len(comment) - charindex('id ', comment)-2) as justnumber
from #testtable) TT
I would also add that this approach is more set based and hence more efficient for a bunch of data values. But it is super easy to do it just for one value as a variable. Instead of using the column comment you can use a variable like #chvComment.
If the comment string is EXACTLY like that you can use replace.
select replace(comment_col, 'activation successful of id ', '') as id from ....
It almost certainly won't be though - what about unsuccessful Activations?
You might end up with nested replace statements
select replace(replace(comment_col, 'activation not successful of id ', ''), 'activation successful of id ', '') as id from ....
[sorry can't tell from this edit screen if that's entirely valid sql]
That starts to get messy; you might consider creating a function and putting the replace statements in that.
If this is a one off job, it won't really matter. You could also use a regex, but that's quite slow (and in any case mean you now have 2 problems).