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SQL Query Error Joining Tables

Posted on 2009-07-16
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Last Modified: 2012-05-07
The below query I was hoping would ONLY show me criteria if for starters part.character03 = 'Package' along with other criteria, yet it still shows me values within Character03 that are OTHER THAN "Package"

I tried part.character03 = 'PACKAGE' and I get an errors saying:  The data types text and varchar are incompatible in the equal to operator.

Any help is appreciated
SELECT     part.partnum, part.character03, shipdtl.packnum
FROM         shipdtl INNER JOIN
                      part ON shipdtl.partnum = part.partnum
WHERE     (part.character03 LIKE 'PACKAGE') AND (shipdtl.packnum = 221) OR
                      (shipdtl.packnum = 222) OR
                      (shipdtl.packnum = 224)

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Question by:chrisryhal
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ralmada earned 2000 total points
ID: 24869030
What about this?
SELECT  part.partnum, 
	part.character03, 
	shipdtl.packnum
FROM    shipdtl 
INNER JOIN part ON shipdtl.partnum = part.partnum
WHERE     (part.character03 LIKE 'PACKAGE') AND (shipdtl.packnum in (221, 222, 224))

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Expert Comment

by:ralmada
ID: 24869060
Btw, From books online, index entry Boolean expressions:

"Comparison operators test whether two expressions are the same. Comparison operators can be used on all expressions except expressions of the text, ntext, or image data types. "

If your character03 column is always (or even usually) under 8000 characters, you might consider to change to a varchar type.  Or you might want to implement two columns, one a smaller description, the other a text column that has long values.  Using the current column.

If not, then you will have to use LIKE or PATINDEX, or cast the values to a varchar (perhaps in a computed column) if you need to do this frequently and not on a really large value.
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by:chrisryhal
ID: 31604217
Awesome Thank You!
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