>

>ALTER TRIGGER [dbo].[cuotasp] ON [dbo].[PRESTAMOS] 
>AFTER INSERT 
>AS 
>BEGIN
>	declare @presta int,@cliente int,@docu varchar(14),@tasam numeric(10,2),@diasm int
>	select @presta=idprestamo,@cliente=idcliente,@docu=documento,@tasam=mora,@diasm=dias_mora from inserted
>	EXEC [P_GCUOTAS]@presta,@cliente,@docu,@tasam,@diasm
>END
>

Well, this trigger is written for a single row operation. What does the P_GCUOTAS] procedure do? You most likely will need to run a cursor loop in your trigger if you want to use this procedure for all rows inserted. Are you sure you want to perform this operation in a trigger? May be you would be better doing insert first and then run the procedure for all inserted rows in the same procedure that did that insert?