sql server - SQL same unit between two tables needs order numbers in 1 cell -

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i have 2 tables:

select unitid dbo.tblunits  select unitid, workordernumber dbo.tblworkorders

i need display unitid's dbo.tblunits in 1 column diplay workorders seperated comma.

so here sample data: dbo.tblunits:

unitid 123 156 178

dbo.tblworkorders

unitid workordernumber 123        1 123        2 156        4 178        5 178        9 178        10

i have use tblunits table because pulling more data final result want show this:

unitid   workordernumber 123         1,2 156         4  178         5,9,10

any ideas?

thanks

select      unitid,      stuff((select ', ' + convert(varchar, workordernumber)             tblworkorders t2 t1.unitid = t2.unitid             xml path('')),           1,2,'') workordernumbers tblworkorders t1 group unitid

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