I have a coloumn in Sql Server table as:
companystring = {"CompanyId":0,"CompanyType":1,"CompanyName":"Test
215","TradingName":"Test 215","RegistrationNumber":"Test
215","Email":"test215#tradeslot.com","Website":"Test
215","DateStarted":"2012","CompanyValidationErrors":[],"CompanyCode":null}
I want to query the column to search for
companyname like '%CompanyName":"%test 2%","%'
I want to know if I'm querying correctly, because for some search string it does not yield the proper result. Could anyone please help me with this?
Edit: I have removed the format bold
% is a special character that means a wildcard. If you want to find the actual character inside a string, you need to escape it.
DECLARE #d TABLE(id INT, s VARCHAR(32));
INSERT #d VALUES(1,'foo%bar'),(2,'fooblat');
SELECT id, s FROM #d WHERE s LIKE 'foo[%]%'; -- returns only 1
SELECT id, s FROM #d WHERE s LIKE 'foo%'; -- returns both 1 and 2
Depending on your platform, you might be able to use some combination of regular expressions and/or lambda expressions which are built into its main libraries. For example, .NET has LINQ , which is a powerful tool that abstracts querying and which provides leveraging for searches.
It looks like you have JSON data stored in a column called "companystring". If you want to search within the JSON data from SQL things get very tricky.
I would suggest you look at doing some extra processing at insert/update to expose the properties of the JSON you want to search on.
If you search in the way you describe, you would actually need to use Regular Expressions or something else to make it reliable.
In your example you say you want to search for:
companystring like '%CompanyName":"%test 2%","%'
I understand this as searching inside the JSON for the string "test 2" somewhere inside the "CompanyName" property. Unfortunately this would also return results where "test 2" was found in any other property after "CompanyName", such as the following:
-- formatted for readability
companystring = '{
"CompanyId":0,
"CompanyType":1,
"CompanyName":"Test Something 215",
"TradingName":"Test 215",
"RegistrationNumber":"Test 215",
"Email":"test215#tradeslot.com",
"Website":"Test 215",
"DateStarted":"2012",
"CompanyValidationErrors":[],
"CompanyCode":null}'
Even though "test 2" isn't in the CompanyName, it is in the text following it (TradingName), which is also followed by the string "," so it would meet your search criteria.
Another option would be to create a view that exposes the value of CompanyName using a column defined as follows:
LEFT(
SUBSTRING(companystring, CHARINDEX('"CompanyName":"', companystring) + LEN('"CompanyName":"'), LEN(companystring)),
CHARINDEX('"', SUBSTRING(companystring, CHARINDEX('"CompanyName":"', companystring) + LEN('"CompanyName":"'), LEN(companystring))) - 1
) AS CompanyName
Then you could query that view using WHERE CompanyName LIKE '%test 2%' and it would work, although performance could be an issue.
The logic of the above is to get everything after "CompanyName":":
SUBSTRING(companystring, CHARINDEX('"CompanyName":"', companystring) + LEN('"CompanyName":"'), LEN(companystring))
Up to but not including the first " in the sub-string (which is why it is used twice).
Related
I have been using sql for quite a time but unable to figure out below query logic.
I'm extracting two values
First_name i.e abc
FIRST_NAMES_LIST (list containing first names) i.e ['abc','abc','cba','dba'] (this may contain junk values also in between strings)
I trying to search first_name in first_name_list and return 1 or 0, using below logic
CASE FIRST_NAME in FIRST_NAMES_LIST then 1
else 0
but this isn't giving correct result
Can somebody please help.
Thanks,
Naseer
Look this information:
https://www.techonthenet.com/oracle/functions/instr.php
INSTR is a function which return <> 0 if your parameter match. If not it return 0.
I no have any clear example in your ennunciate to give you the correct answer. See the functionalities.
Regards!
Ideally you would parse out your json into a table object ( I don't know how to do that in Oracle) and then search your table object where the object contains the value, but that is pretty expensive. It would be more robust and would be able to handle special characters/corner cases better.
On the other hand, if the names are going to stay simple (ie, no quote marks ' or commas), you could use a LIKE expression and search the string.
CASE WHEN FIRST_NAMES_LIST LIKE '%''' + FIRST_NAME + '''%' THEN 1 ELSE 0 END
Yes im currently using INSTR but query is taking bit of time. hope resolves this issue. thanks.
I have a requirements to find rows by filtering a specific text using Full Text Search in MS SQL. The first requirement is to find rows by searching the text within the xml column, and the second requirement, is to find rows by searching the text within the json column(nvarchar data type). The following conditions should return a result.
XML Column
Criteria 1. Where Contains(XMLData,"1")
Criteria 2. Where Contains(XMLData,"/1/")
Criteria 3. Where Contains(XMLData,"<field>1</field>")
JSONDATA Column :
Criteria 1. Where Contains(JSONData,"1")
Criteria 2. Where Contains(JSONData,"/1/")
Criteria 2. Where Contains(JSONData,"PortalId:1")
My current implementation is by using the query below which has a performance issues when running thousand of records. Is there any other approach other than the code below?
XML QUERY
SELECT *
WHERE cast(XMLData as nvarchar(max)) LIKE '%/' + CONVERT(VARCHAR,'1') +'/%'
JSON QUERY
SELECT *
WHERE JSONDataLIKE '%/' + CONVERT(VARCHAR,'1') +'/%'
Here is a sample table for this question.
http://sqlfiddle.com/#!18/f65ef/1
I do not think that a full text search would help you. It seems you are looking for any fragment even such as technical terms like /1/.
Try this for XML
DECLARE #SearchFor VARCHAR(100)='1';
SELECT *
FROM SettingsData
WHERE xmldata.exist(N'//*[contains(text()[1],sql:variable("#SearchFor"))]')=1;
It will check any node's internal text() if it contains the search phrase. But any value with a 1 inside is found (e.g. any unrelated number which has a 1 somewhere.) You might search for text()="1" and perform the contains only if the string length exceeds a certain minimum.
Something like
WHERE xmldata.exist(N'//*[text()[1]=sql:variable("#SearchFor") or(string-length(text()[1])>=3 and contains(text()[1],concat("/",sql:variable("#SearchFor"),"/")))]')=1;
Json is - up to now - nothing more than a string and must be parsed. With v2016 Microsoft introduced JSON support, but you are on v2012. The problem with a LIKE search on a JSON-string might be, that you would find the 1 even as a part of an element's name. The rest is as above...
SELECT *
FROM SettingsData
WHERE jsondata LIKE '%' + #SearchFor + '%';
I have a report (built using SSRS) that uses a multi-value parameter.
I want to add a Filter onto my SQL Query WHERE FieldA is LIKE any of the values stored in the parameter.
So FieldA might have the following values:
BOBJAMESLOUISE
MARYBOB
JENNY
JOHNLOUISEJAMES
BOB
JENNYJAMESMIKE
And #ParamA might have the following values:
Bob, Louise
Therefore in this example only records 1, 3, 4 and 5 should be returned
Thanks to any help in advance :)
P.S I'm using SQL Server 2008
You will want to implement a function like the split function. This can take a comma separated value list and separate it into rows like you want.
Below is a link for a couple of different versions, any of them will work for you. It also tells you how to use it.
Split Function
I am guessing its not the spiting sting part that is the issue since just googling for SQL split string you can find a lot of example. In your case what you would want after the split string is something like this. Assuming that the split string function you end up using returns a table of values Here is what your comparison query for with field A would look like.
SELECT * FROM YourTableWithFieldA WHERE (#ParamA IS NULL OR EXISTS ( SELECT * FROM YourSplitFunctionThatReturnsATableOfValues(#ParamA) SplitTable WHERE (FieldA Like '%'+SplitTable.Value+'%')))
I am working with a table that contains two versions of stored information. To simplify it, one column contains the old description of a file run while another column contains the updated standard for displaying ran files. It gets more complicated in that the older column can have multiple standards within itself. The table:
Old Column New Column
Desc: LGX/101/rpt null
null Home
Print: LGX/234/rpt null
null Print
null Page
I need to combine the two columns into one, but I also need to delete the "Print: " and "Desc: " string from the beginning of the old column values. Any suggestions? Let me know if/when I'm forgetting something you need to know!
(I am writing in Cache SQL, but I'd just like a general approach to my problem, I can figure out the specifics past that.)
EDIT: the condition is that if substr(oldcol,1,5) = 'desc: ' then substr(oldcol,6)
else if substr(oldcol,1,6) = 'print: ' then substr(oldcol,7) etc. So as to take out the "desc: " and the "print: " to sanitize the data somewhat.
EDIT2: I want to make the table look like this:
Col
LGX/101/rpt
Home
LGX/234/rpt
Print
Page
It's difficult to understand what you are looking for exactly. Does the above represent before/after, or both columns that need combining/merging.
My guess is that COALESCE might be able to help you. It takes a bunch of parameters and returns the first non NULL.
It looks like you're wanting to grab values from new if old is NULL and old if new is null. To do that you can use a case statement in your SQL. I know CASE statements are supported by MySQL, I'm not sure if they'll help you here.
SELECT (CASE WHEN old_col IS NULL THEN new_col ELSE old_col END) as val FROM table_name
This will grab new_col if old_col is NULL, otherwise it will grab old_col.
You can remove the Print: and Desc: by using a combination of CharIndex and Substring functions. Here it goes
SELECT CASE WHEN CHARINDEX(':',COALESCE(OldCol,NewCol)) > 0 THEN
SUBSTRING(COALESCE(OldCol,NewCol),CHARINDEX(':',COALESCE(OldCol,NewCol))+1,8000)
ELSE
COALESCE(OldCol,NewCol)
END AS Newcolvalue
FROM [SchemaName].[TableName]
The Charindex gives the position of the character/string you are searching for.
So you get the position of ":" in the computed column(Coalesce part) and pass that value to the substring function. Then add +1 to the position which indicates the substring function to get the part after the ":". Now you have a string without "Desc:" and "Print:".
Hope this helps.
Using the Sql Server 2008 how can you actually find an exact string match using full-text search. I'm having a real hard time with this and I just couldn't find a satisfactory solution anywhere online.
For example, if I'm searching for the string "Bojan Skrchevski" I want the first result to be exactly that.
So far I've tried formatting the string like: "Bojan* NEAR Skrchevski*" and call CONTAINSTABLE to get results, but this string is formatted to return more results as Bojana and Bojananana etc. I also tried to ORDER BY RANK, but still no success.
Furthermore, in my string I have a number sequence like: "3 1 7", but with the current formatting it also returns "7 1 3" etc.
Example:
DECLARE #var varchar(4000);
SET #var = '"Oxford*" NEAR 24 NEAR 7 NEAR 5 NEAR "London*"'
SELECT [Key] FROM CONTAINSTABLE(dbo.[MyTable], [MyField], #var);
I want to be able to get the exact ordering. Not to get "Oxford 7 24 5 London" as a result.
How do I format the string to accomplish this correctly?
There's 2 options
1)
This will get all items which have Mountain in their name
SELECT Name, ListPrice
FROM Production.Product
WHERE ListPrice = 80.99
AND CONTAINS(Name, 'Mountain');
GO
2)
This will get all items which have these 3 strings in Document no matter what order
SELECT Title
FROM Production.Document
WHERE FREETEXT (Document, 'vital safety components' );
It depends on what you really want but I couldn't understand completely.
If I'm missing the point please post a sample and what the result should be.
kr,
Kristof
Perhaps one approach could be to select several results with the full-text search and then SELECT the specific one from those results. But maybe there could be a better solution to this.
I tried this approach and it actually worked. It also works a lot faster then to just SELECT the value.