Question

I have three similar tables with same fields and one field has same values. Like

Table1(Column1:USA,Column2:200)

Table2(Column1:USA,Column2:400)

Table3(Column1:USA,Column2:500)

What I want is to query data Like this:

ColumnA  Table1Value   Table2Value   Table3Value

USA        200           400           500

I know database is not normalized, but I’ve to use the same as many parts of the application are already using this structure

Answer 1

Select
  t1.Column1 AS ColumnA,
  t1.Column2 AS Table1Value,
  t2.Column2 AS Table2Value,
  t3.Column3 AS Table3Value
FROM Table1 t1
JOIN Table2 t2 ON t2.Column1 = t1.Column1
JOIN Table3 t3 ON t3.Column1 = t1.Column1