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CREATE TABLE Estudiante (Cod_Estudiante int,Nombres varchar(30),Apellidos varchar(30),Fecha_Nac date,Genero char,Nacionalidad varchar(10),Pasatiempo varchar(10))CREATE TABLE Comprobante (Numero int PRIMARY KEY,Fecha datetime,Valor numeric(5,2))CREATE TABLE Comprobante (Numero int identity(1,1)PRIMARY KEY NOT NULL,Fecha date NULL,Valor numeric(5,2) CHECK (Valor >=1 AND Valor