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sqliteHow do I use SQLite UNION to combine multiple SELECT queries?


SQLite UNION is a keyword used to combine the results of two or more SELECT queries into a single result set. It is helpful for combining data from multiple tables or from multiple queries into a single result.

Example

SELECT name, age
FROM table1
UNION
SELECT name, age
FROM table2;

Output example

name      age
--------  ----
John      25
Mary      28
James     32
  • SELECT name, age: Retrieve the name and age columns from the respective tables.
  • FROM table1: Retrieve data from table1.
  • UNION: Combine the results of the two SELECT queries into a single result set.
  • FROM table2: Retrieve data from table2.

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