performance - Access SQL "where like left" query unstable -


i have query in access 2010 used following sql

select * [table1]![stock_num], [table2]![stock_num], [table3]![stock_num] [table2]![stock_num] left([table1]![stock_num],11) , [table3]![stock_num] left([table1]![stock_num],11)

the query works correctly makes access extremely unstable. "program not responding" when try sort or filter or go the last record. there 2k - 3k records in each table. there better/more stable method this?

just little story, can't use join because have values in table 1 "12345678912a". need match values "12345678912" tables2 , 3


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