MySQL - Identifying records on one table but not on another

I have two tables that have some columns in common.including a unique identifying key which is shared by both. One table has 'x' rows, the other has 'x-y' rows - I want to be able to construct a query that will show me the rows that are on table 1, but not on table 2 .... is this possible?
me_patrickAsked:
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Guy Hengel [angelIII / a3]Billing EngineerCommented:
this will do
select t1.*
  from table1 t1
  left join table2 t2
    on t1.key = t2.key
  where t2.key is null

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Patrick MatthewsCommented:
In SQL Server you would use:

SELECT t1.*
FROM Table1 t1 LEFT JOIN
      Table2 t2 ON t1.ID = t2.ID
WHERE t2.ID IS NULL

The MySQL syntax should be similar...
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me_patrickAuthor Commented:
Thanks guys - spot on.
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