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Helper IV
Helper IV

Recuento a partir de datos específicos

Hola a todos,

Necesito ayuda para resolver mi problema... 😞

Tengo una tabla con mi lista de artículos (id y nombre)

Y tengo una tabla con mis datos sobre ellos :

id, intervention_date, intervention_label

2 03/02/2020 blabla

2 04/02/2020 mantenimiento1

3 06/02/2020 mantenimiento1

4 07/02/2020 blabla

2 10/02/2020 mantenimiento1

3 Mantenimiento 15/02/20202

...

Y yo tendría este resultado :

artículo, nb maintenance1

1 5

2 3 (causa -> 5-2 "mantenimiento1")

3 5 (causa -> 5-0 "mantenimiento1" del último "mantenimiento2")

4 5

No sé si tengo claro...

¡hágamelo saber!

¡Thanx para todos!

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