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Combining data in different rows?

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I would like to combine data from different rows in one column into one row.

I have two tables: 'locations' containing a dozen records about cities and their geographic coodinates - the other table,'testators', contains several hundred records referring to wills (each will is given a unique number) made by people in each of the towns in the locations table.

I would like to query both tables so that a table is produced that has one row for each of the dozen cities and in each row is the name of the city, its coordinates and then a column containing all of the wills (i.e. the unique identifying number of each) from that city.

Is this possible and if so, how?

Thanks!
-- Anthony Masinton


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