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18 mar 2013 · ORDER BY after the last UNION should apply to both datasets joined by union. The solution shown below: SELECT *,id AS sameColumn1 FROM Locations UNION ALL SELECT *,id AS sameColumn2 FROM Cities ORDER BY sameColumn1,sameColumn2
In order to make the sort apply to only the first statement in the UNION, you can put it in a subselect with UNION ALL (both of these appear to be necessary in Oracle): Select id,name,age FROM. (. Select id,name,age. From Student.
30 paź 2012 · It is not possible to use 2 separate Order By in Union. You can add an additional static column and order by that column. You want to use the concept “SELECT with ORDER BY – with ORDER KEY”
Learn how to use the SQL UNION operator to combine the result-set of two or more SELECT statements. See examples of UNION, UNION ALL, and UNION with WHERE clauses, and how to order the result-set by a column.
This tutorial shows you how to use SQL UNION to combine two or more result sets from multiple queries & explains the difference between UNION and UNION ALL.
Because in the SQL order of operation, the order by is performed after a union all, the following → development/databases/Oracle/SQL/select statement returns all records ordered by id, not just the records of tq84_tab_2. select * from tq84_tab_1 union all. select * from tq84_tab_2. order by.
The UNION ALL command combines the result set of two or more SELECT statements (allows duplicate values). The following SQL statement returns the cities (duplicate values also) from both the "Customers" and the "Suppliers" table: Example. SELECT City FROM Customers. UNION ALL. SELECT City FROM Suppliers. ORDER BY City; Try it Yourself »
