Space separated string to create dynamic Sql query - sql-server-2008

Question

I have a space separated string as parameter to my SP. I need to split the strings and compare each one against a column in the database along with wildcard and return the results.
For example:
I have CompanyName 'ABC DataServices Pvt Ltd' I need to split the string by 'space' and compare each word with database field company name with an OR condition.
Something like this:
select *
from CompanyTable
where companyname like '%ABC%'
or companyname like '%DataServices%'
or companyname like '%Pvt%'
or companyname like '%Ltd%'
Can some one help me out to achieve this?
Thanks in advance

Answer 1

Try this SQL User Defined Function to Parse a Delimited String helpful .
For Quick Solution use this ,
SELECT PARSENAME(REPLACE('ABC DataServices Pvt Ltd', ' ', '.'), 2) // return DataServices
PARSENAME takes a string and splits it on the period character. It takes a number as it's second argument, and that number specifies which segment of the string to return (working from back to front).
you can put the index you want in place of 2 in above like
SELECT PARSENAME(REPLACE('ABC DataServices Pvt Ltd', ' ', '.'), 3) --return Pvt
declare a string in your store procedure and use set this value to it. use where you want.
The only problem is when the string already contains a period. One thing should be noted that PARSENAME only expects four parts, so using a string with more than four parts causes it to return NULL

Answer 2

Try this function:
CREATE FUNCTION [dbo].[fnSplitString]
(
#string NVARCHAR(MAX),
#delimiter CHAR(1)
)
RETURNS #output TABLE(splitdata NVARCHAR(MAX)
)
BEGIN
DECLARE #start INT, #end INT
SELECT #start = 1, #end = CHARINDEX(#delimiter, #string)
WHILE #start < LEN(#string) + 1 BEGIN
IF #end = 0
SET #end = LEN(#string) + 1
INSERT INTO #output (splitdata)
VALUES(SUBSTRING(#string, #start, #end - #start))
SET #start = #end + 1
SET #end = CHARINDEX(#delimiter, #string, #start)
END
RETURN
END
And use it like this:
select * from dbo.fnSplitString('Querying SQL Server','')

Answer 3

This will scale to any number of search terms and does not require dynamic SQL.
declare #a table (w varchar(50)) -- holds original string
declare #b table (s varchar(50)) -- holds parsed string
insert into #a -- load string into temp table
values ('ABC DataServices Pvt Ltd')
--parse string as XML
;WITH Vals AS (
SELECT w,
CAST('<d>' + REPLACE(w, ' ', '</d><d>') + '</d>' AS XML) XmlColumn
FROM #a
)
--Insert results to parsed string
insert into #b
SELECT
C.value('.','varchar(max)') ColumnValue
FROM Vals
CROSS APPLY Vals.XmlColumn.nodes('/d') AS T(C)
--Join on results
select * from companytable
join #b b on b.s like '%'+companyname+'%'

Answer 4

You can also try this.
First in your parameter's value replace space with comma (,) and then replace comma with desired where condition like this -
DECLARE #companyname VARCHAR(1000)
,#where VARCHAR(max)
SET #companyname = 'ABC DataServices Pvt Ltd'
SET #companyname = replace(#companyname, ' ', ', ')
SELECT #where = 'companyname like ''%' +
REPLACE(#companyname, ', ', '%'' OR companyname like ''%') + '%'''
PRINT #where
PRINT ('SELECT * FROM CompanyTable WHERE' + #where)
--EXEC ('SELECT * FROM CompanyTable WHERE' + #where)