SELECT
 (T_SAL.MatriculeSalarie + ' ' + isnull(T_SAL.Nom, '') + ' '  + isnull(T_SAL.Prenom, '') ) as Col1,
 'Date de départ : '+ CONVERT(VARCHAR(12),T_HST_INFOSSOCIETE.DateDepart, 113) + '- Motif : ' + CONVERT(VARCHAR(5),ISNULL(T_HST_INFOSSOCIETE.CodeMotifDepart,' ')) as Col2
FROM
  T_PAI,
  T_SAL
  LEFT OUTER JOIN T_HST_INFOSSOCIETE ON T_HST_INFOSSOCIETE.NumSalarie=T_SAL.SA_CompteurNumero
                  AND T_HST_INFOSSOCIETE.InfoEnCours=1
Where    (CURRENT_TIMESTAMP >= DATEADD(DAY,ISNULL(-%NbJoursAvant%,0),T_HST_INFOSSOCIETE.DateDepart)
		 and CURRENT_TIMESTAMP <= DATEADD(DAY,ISNULL(%NbJoursApres%,0),T_HST_INFOSSOCIETE.DateDepart)
         )  

Order by T_SAL.MatriculeSalarie