Thank you for replay, it is working, but
i would like to get result table with 5 rows.
In your example we willl get 8 rows
RH> From: "Igor" <dbmanager@osb368.nnov.ru>
>> Hello!
>>
>> What SQL query will help me to concatenate two different tables
>> with different number of rows? For example , i have first table
>> with column1 and column2 , having 3 rows , and second table
>> with column3, column4 , having 5 rows. How to make
>> third table with column1,column2,column3,column4 and 5 rows in it
>> (and last two rows in column1 and column2 are empty)
RH> Something along the lines of:
RH> SELECT col1,col2,'' as dummy3, '' as dummy4
RH> FROM table1
RH> UNION
RH> SELECT '' as dummy1, '' as dummy2, col3, col4
RH> FROM table2