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SQL server 2000 - Calculated column - how do i return the first word of a field???

Hi I am trying to create a column in a table that always returns the first part of another field. I need to strip a postcode down to the first part ie "L35 6YT" would be "L35" the first part is between 2 and 4 charactors long so I cant use a simple trimming function. I have done it in access using this code

 Left([IntroducerPostcode],InStr([IntroducerPostcode] & " "," ")-1)

but SQL server 2000 doesnt read the commands??

any ideas? Im doing it so I can compare the postcode in a transactions table to the postcode in another table, but the postcodes stored in the other table are only the first part and not the full code that is stored in the transactions table. Im thinking maybe I can set a join up between the two fields in a query once I can get only the first part to return in the tranactions table.

Hope that makes sense! There may be an easier way to do it in which case let me know!

Cheers!
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goldsmithwilliams
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goldsmithwilliams
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solution46Commented:
use charindex instead of InStr

From the SQL Server books online...

CHARINDEX ( expression1 , expression2 [ , start_location ] )

Arguments
expression1

Is an expression containing the sequence of characters to be found. expression1 is an expression of the short character data type category.

expression2

Is an expression, usually a column searched for the specified sequence. expression2 is of the character string data type category.

start_location

Is the character position to start searching for expression1 in expression2. If start_location is not given, is a negative number, or is zero, the search starts at the beginning of expression2.
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goldsmithwilliamsAuthor Commented:
Thanks,

Im new to SQL so am struggling with this, what should I be putting into the formula box by looking at my access code?

Cheers again!
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solution46Commented:
Er, your best bet is probably to make a view in SQL Server, using the above SQL, and link to that in Access; then use the usual access notation to use your query in your forms.

If you need any more guidance, please give me a few details of your setup and I'll see what I can do.

s46.
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