I'm trying to generate a spool but it marks me wrong syntax
when I insert in the variable
COL Nombre_emp new_value Nombre_emp;
SELECT TO_CHAR(TO_DATE(TRUNC(MAX(ID_MES)),'YYYYMM'),'YYYYMM')||'.txt' Nombre_emp FROM estudiante WHERE ID_MES >...
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14.06.2018 / 16:35