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| Buscar en varias tablas con la misma estructura, es decir, con las mismas columnas. |
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Comando: [Execute query]
show tables;
Tables_in_DataBase <- Quitar el nombre del titulo de la columna
tabla1
tabla2
tabla3
tabla4
tabla5
^^^^^^^^^^^^^^^^^
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Trabajar el resultado copiar/pegar SELECT * FROM …. UNION
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vvvvvvvvvvvvvvvvv
SELECT * FROM tabla1 UNION
SELECT * FROM tabla2 UNION
SELECT * FROM tabla3 UNION
SELECT * FROM tabla4 UNION
SELECT * FROM tabla5 <- No poner UNION en el último registro
^^^^^^^^^^^^^^^^^
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Agregar el SELECT * FROM ( … ) AS TablaTemporal
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vvvvvvvvvvvvvvvvv
SELECT * FROM ( SELECT * FROM tabla1 UNION
SELECT * FROM tabla2 UNION
SELECT * FROM tabla3 UNION
SELECT * FROM tabla4 UNION
SELECT * FROM tabla5
) AS TablaTemporal
^^^^^^^^^^^^^^^^^
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Agregar el WHERE
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vvvvvvvvvvvvvvvvv
SELECT * FROM ( SELECT * FROM tabla1 UNION
SELECT * FROM tabla2 UNION
SELECT * FROM tabla3 UNION
SELECT * FROM tabla4 UNION
SELECT * FROM tabla5
) AS TablaTemporal
WHERE columna LIKE variable;
^^^^^^^^^^^^^^^^^
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Agregar lo a un procedimiento
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vvvvvvvvvvvvvvvvv
DROP PROCEDURE IF EXISTS getName;
CREATE PROCEDURE getName( variable VARCHAR(255))
SELECT * FROM ( SELECT * FROM tabla1 UNION
SELECT * FROM tabla2 UNION
SELECT * FROM tabla3 UNION
SELECT * FROM tabla4 UNION
SELECT * FROM tabla5
) AS TablaTemporal
WHERE columna LIKE variable;
CALL getName(‘%DatoABuscar%’);
^^^^^^^^^^^^^^^^^
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