选择查询Ms访问中的子查询

Question

Can I add in sub query in ms access something like :

select field1,field2,field3, 
(select field4 from table2 where field5 = field3)  from table1

I tried the same and the sub query brings values for every line.I need it to display the value only when field5 = field3

Answer 1

as per discusion you can try this

Select field1, field2,field3 + (select
IIF(IsNull(sum(field4)),0,sum(field4)) from table2 where table2field5 = 
table2.fields3) from table1

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Try left join between two table

select table1.field1,table1.field2,table1.field3,table2.field4
from table1 left outer join table2 on
 table1.field5= table2.field3

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you can try like this, I think you are trying subquery and you are trying copare table1 column to table2 column

select field1,field2,field3, 
 (select field4 from table2 where table2. field5 = field3) from table1

or

select field1,field2,field3,
  (select field4 from table2 where field5 = table2.field3) from table1