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Add example of union

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Nicolás A. Ortega Froysa 2022-02-16 20:49:41 +01:00
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commit 0d8ae7984a
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1/GBD/notes/union-example.sql Normal file
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-- futbolistas
SELECT salario "euros" FROM futbolistas UNION SELECT presupuesto FROM equipos;
SELECT nombre FROM futbolistas WHERE altura <= ALL(SELECT altura FROM futbolistas);