sql - Access query returns no results when criterion added -

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i running following query in access 2010

select      [table1].[field4], table2.id, table2.["fielld1"],     table2.["field3"], table2.["field2"]      table2  inner join      [table1] on table2.id = [table1].[field4]      table2.["field3"]="xx"

it runs without clause, returns no results when clause added. know records exist. ideas?


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