In SQL Server 2008 R2 I need to extract from a string everything between the character 50 and 60.
I've searched for a similar function on the internet but didn't really find something which can address the problem.
I can do it on Excel with a formula like: MID(A2, 50, 10)
The sql function is called substring
substring(fieldname,50,10)
If you need more flexibility, for instance if the separation does not occur in the same place each time you can use CHARINDEX. Here are a couple examples.
REVERSE(LEFT(REVERSE(fieldname),CHARINDEX(' ',REVERSE(fieldname))))
If your string is "AA 1235 A9" the output will be A9.
REPLACE(STUFF(fieldname,1,CHARINDEX('- ',fieldname),''),REVERSE(LEFT(REVERSE(fieldname),CHARINDEX(' ',REVERSE(fieldname)))),'')
Adding on to the first bit of code you can also pull the middle portion which will result in 1235. The ' ' is flexible and if there is a hyphen, asterisk or some other symbol/identifier you need to use then just use that instead of the space.
Related
I'm using SQL Server 2008 and need to strip out quite a bit of data within a string. Because of the nature and variability of the string, I think I'm needing to use multiple, nested REPLACE commands. The problem is each REPLACE needs to build on the previous one. Here is a sample of what I'm looking at:
<Paragraph><Replacement Id="40B"><Le><Run Foreground="#FFFF0000">Treatment by </Run></Le><Op isFreeText="True"><Run Foreground="#FFFF0000">test</Run></Op><Tr><Run Foreground="#FFFF0000">. </Run></Tr></Replacement></Paragraph>
Essentially, I need it to return just the text outside of the <> brackets so for this example it would be:
Treatment by test.
Also, I wanted to mention that the strings inside the <> brackets can vary quite a bit for each row both by content and length, but it isn't relevant for what I'm needing other than making it more complex for replacing.
Here is what I've tried:
REPLACE(note,substring(note,patindex('<%>',note),CHARINDEX('>',note) - CHARINDEX('<',note) + 1),'')
And it returns:
<Replacement Id="40B"><Le><Run Foreground="#FFFF0000">Treatment by </Run></Le><Op isFreeText="True"><Run Foreground="#FFFF0000">test</Run></Op><Tr><Run Foreground="#FFFF0000">. </Run></Tr></Replacement></Paragraph>
Somehow I need to keep going with replacing each of the <> brackets but don't know how to proceed. Any help or guidance would be greatly appreciated!!!
Depending on how you have that string holding the HTML fragment available you could try to use something like:
SELECT convert(xml, '<Paragraph><Replacement Id="40B"><Le><Run Foreground="#FFFF0000">Treatment by </Run></Le><Op isFreeText="True"><Run Foreground="#FFFF0000">test</Run></Op><Tr><Run Foreground="#FFFF0000">. </Run></Tr></Replacement></Paragraph>').value('/', 'varchar(255)') as stripped
You convert it to XML and then use the built in xml parser function "value".
I am using VBA in Ms Access environment, to handle long string (memo field storing HTML originally).
After positioning by Instr(), I put the position into Mid(vStr,vStartPos,vEndPos-vStartPos+1) to extract the string, but the output doesn't match. I have already carefully checked this in immediate windows, as well as NotePad++. What I can say is Instr() and NotePad++ have given the same counting result, while Mid() is different. Mid()'s result are former than Instr()'s in some cases, and latter in other cases. I don't know the reason, and can just believe Mid() use different mechanism or have defeative (surprised!) in handling long string mixed with single-byte and bi-byte chars (but this is common in the world, and meet no problem before), and possibly some special characters.
I believe I need to custom-make a Mid() function. Any idea how to do it effectively and efficiently?
Thanks all for your reply. After I created a custom Mid() by RegEx and find that the problem has no change, I have found out the silly mistake I made. The Instr() and Mid() have no problem, but the string has been carelessly modified between them. So this case should be closed now.
I want to convert a string to int like this:
CAST(TestSth3.Emp_Code AS int)
I need output as 1234 in crystal report, shows me correctly when i get the output from database, but in Crystal it again converts to 1,234 instead of 1234.
I am using vb.net 2008 and SQL server.
I think you need to try this solution, Replace ',' to '' in the string
Take a look on below code
CAST(REPLACE(TestSth3.Emp_Code, ',', '') AS int) As Clm
it is unclear your question i just point out some facts here
if your string is 1234
then when you try select cast(yournum,int) will give you the correct result
example
select cast('1234'as int) as num
will results
1234
or if your string is something like 1,234
then
try the following it will give results
declare #num varchar(10) ='1,234'
select CONVERT(int, replace(#num,',',''))as number
or
select CAST(replace(#num,',','') AS int)as number2
both results 1234
also you need to double check TestSth3.Emp_Code what is that ?? is it a parameter ??
if yes then need #before that and i think it is not possible to create a parameter name including .(dot) so double check that too.
UPDATE
if the problem based on crystal report then follow below steps
Right mouse click on that field, and select "Format object". Select
"Custom Style" in the Style list, and click "Customize". Untick
"Thousands Separator", and any other unwanted formatting.
Failing that, you could try selecting the field and deleting the ","
value from the property "ThousandSeperator" in your properties window.
or use below formula
CStr(YourField, 0, '')
I think this post summarises the problem much better. #MattWhitfield says:
Formatting numbers for display is something that should be done in the
display layer, and not within the database. So, in whatever
application this data ends up being used, you should format it there.
Management Studio, unfortunately, does not offer much control in this
regard.
Edit: Integers don't have formats. E.g. Six eggs are formatted as eggs, not digits, but they are still 6. The formatting has nothing to do with the number. However if you want to display the integer in a particular format (with or without thousands separator - commas), then convert it back to a string again in the report or VB form, not in the database (or leave it as a string since it's already a string).
Easy way is to use crystal report functions:
ToNumber(TestSth3.Emp_Code)
I want to update a database table field using another field in the same table. Currently I have this table called sources.
Name Code
In the name column I have values like this example :
' Deals On Wheels '
'Homesru - Abu Dhabi - Madinat Zayed Gold Centre'
And I am having this update statement :
UPDATE Sources
SET Code = REPLACE((LTRIM(RTRIM(Name))),' ','-')
the result is :
Deals-On-Wheels-Al-Aweer
which is fine.
but for second one I have this :
Homesru---Abu-Dhabi---Madinat-Zayed-Gold-Centre
I want it to be like this :
Homesru-Abu-Dhabi-Madinat-Zayed-Gold-Centre
How can I Achieve this ? Any Help is appreciated.
As suggested by #DanielE. my answer will point to a more global solution, in case you ever need to replace duplicated/triplicated/quadriplicated/... occurrences of a character on a string.
I'll not create a full solution for this issue, is a recurring question and there are really good solutions around already. Check these links:
SQL Server Central: remove spaces between specific character in a string?. This forum post will point to the next link I'm posting here. But is good to know what they are asking and answering.
Replace multiple spaces with new one but you can slightly modify it to replace any character you want.
You can also rely on this answer Find and remove repeated strings from Aaron Bertrand.
try
REPLACE((LTRIM(RTRIM(REPLACE((LTRIM(RTRIM(Name))),' - ','-')))),' ','-')
this will first replace ' - ' with just '-'
You might want to look into using a UDF to do a regular expression search and replace. See https://launchpad.net/mysql-udf-regexp
I need to remove leading zeros from a string field in an Access database that is destroyed and recreated every time it is used within a C# program. Most string libraries (even SQL ones) include a Trim function to remove leading or following whitespace. Unfortunately, Access does not seem to have a LTrim(string s, char[] trimChars) or something similar. To get around this, I concocted this monstrosity:
Replace(LTrim(Replace(ADDRNO,'0', ' ')),' ', '0')
But this resulted in an undefined function reference for Replace, even though it is obviously an Access function.
What I am looking for is a way to trim these zeros, either by getting the JET engine to let me use the Replace function or by some other method entirely.
EDIT: Fixed syntax of Replace function. Problem still persists.
I suggest
Val(ADDRNO)
It will return the number portion without the leading zeros.
I think it's just the order of your parameters that is wrong:
debug.? Replace("My string", "i", "o") -> "My Strong"
You can use Trim and Replace.
I'm not sure what context you are running this but this seems to show the parameter order is different and uses double quotes instead of single quotes(I haven't used Access in awhile so maybe it doesn't matter), also try square brackets on column name:
http://www.techonthenet.com/access/functions/string/replace.php
Replace(LTrim(Replace([ADDRNO], "0", " "))," ", "0")
If that gives the same error just try the replace function by itself to narrow down the problem:
Replace ("alphabet", "a", "e")
If this works then you know the Replace function works, and there is some other issue.
Edit: If it doesn't work at all, then Replace is likely a VBA function available only in the Access application, and is not part of Jet. You could try some combination of Left/Right function and chop the string up, this can get quite ugly. I personally would just iterate over the record set and use C# code to modify the values. Hopefully you don't have such a large number of records that this would be a problem.