sql command "union"

sagidam 

I'm not sure this is the correct place to ask a question like this, but oh well.

Have you ensured that both tables have the same number of columns, and both the order of the columns are the same and the data type.

Hi sagidam ,

The UNION operator is used to combine the result-set of two or more SELECT statements.

• Each SELECT statement within UNION must have the same number of columns
• The columns must also have similar data types
• The columns in each SELECT statement must also be in the same order

You may list the corresponding columns like syntax codes below:

SELECT City, Country FROM Customers

WHERE Country='Germany'

UNION

SELECT City, Country FROM Suppliers

WHERE Country='Germany'

ORDER BY City;

You may also create a calculated table like DAX below to combine columns using DAX .

New table= UNION (SELECTCOLUMNS(Table1,"Account Name",Table1[A]),SELECTCOLUMNS(Table2,"Account Name",Table2[B]))

For more professional SQL help, you may post your issue in SQL Server Community.

Best Regards,

Amy

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