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String Manipulation Expand / Collapse
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Posted Thursday, August 1, 2013 2:44 PM


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Hello Everyone
I have a strange thing that I am trying to code for, and I am almost there, but I know there is a function.

I have a string of text that I need to select, which is only the first word. The rest I do not care about. There is a blank space between the two words, there are only two words and I will only need the first word.

Sample:
Irvine Street

I need only the word "Irvine"

I cannot, for the life of me think of the function name. I have tried substring, but that is not doing what I need.

Thank you in advance for your comments, suggestions and assistance
Andrew SQLDBA
Post #1480148
Posted Thursday, August 1, 2013 2:53 PM


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Something that's not LEFT( myString, CHARINDEX(' ', myString)) ?


Luis C.
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Post #1480154
Posted Thursday, August 1, 2013 2:59 PM


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Thank You Luis
That is perfect and exactly what I needed, and was trying to do.

I need to brush up on my string manipulations

Thanks again

Andrew SQLDBA
Post #1480160
Posted Thursday, August 1, 2013 3:09 PM
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Technically it should be:

LEFT(myString, CHARINDEX(' ', myString + ' ') - 1)

unless you want a trailing space in the result .

Adding the "+ ' '" will cause the code to return the complete string if a space is not found.


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Post #1480162
Posted Thursday, August 1, 2013 3:27 PM


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I put together a little sample code and a few examples (note my comments) for a couple common scenarios

DECLARE @x TABLE (val varchar(20));
INSERT @x VALUES ('two words'),('two words '),('oneword'),(' leading space');

--This will also work (using substring):
SELECT val AS original,
SUBSTRING(val,1,CHARINDEX(' ',val)) AS updated
FROM @x;

--To handle cases where there are no spaces:
SELECT val AS original,
CASE
WHEN CHARINDEX(' ',val)=0 THEN val
ELSE LEFT(val,CHARINDEX(' ',val))
END AS updated
FROM @x;

--To handle cases where there are leading spaces:
SELECT val AS original,
CASE
WHEN CHARINDEX(' ',val)=0 THEN val
ELSE LEFT(LTRIM(val),CHARINDEX(' ',LTRIM(val)))
END AS updated
FROM @x;



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Post #1480172
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