SQL Server Query spécifie la structure de la table

SELECT 
Nom du tableau       = 'dbo.Treestructure',
Description du tableau     = CASE WHEN A.COLORDER=1 THEN ISNULL(F.VALUE,'') ELSE '' END,
Numéro de champ   = A.COLORDER,
Nom du champ     = A.NAME,
Auto - identification       = CASE WHEN COLUMNPROPERTY( A.ID,A.NAME,'ISIDENTITY')=1 THEN '√'ELSE '' END,
Clé primaire       = CASE WHEN EXISTS(SELECT 1 FROM SYSOBJECTS WHERE XTYPE='PK' AND PARENT_OBJ=A.ID AND NAME IN (
 SELECT NAME FROM SYSINDEXES WHERE INDID IN(
 SELECT INDID FROM SYSINDEXKEYS WHERE ID = A.ID AND COLID=A.COLID))) THEN '√' ELSE '' END,
Type de données       = B.NAME,
Octets occupés = A.LENGTH,
Longueur       = COLUMNPROPERTY(A.ID,A.NAME,'PRECISION'),
Décimales   = ISNULL(COLUMNPROPERTY(A.ID,A.NAME,'SCALE'),0),
Peut être vide     = CASE WHEN A.ISNULLABLE=1 THEN '√'ELSE '' END,
Par défaut     = ISNULL(E.TEXT,''),
Description du champ   = ISNULL(G.[VALUE],'')
 FROM 
 SYSCOLUMNS A
 LEFT JOIN SYSTYPES B  ON  A.XUSERTYPE=B.XUSERTYPE
 INNER JOIN  SYSOBJECTS D  ON  A.ID=D.ID  AND D.XTYPE='U' AND  D.NAME<>'DTPROPERTIES'
 LEFT JOIN  SYSCOMMENTS E  ON  A.CDEFAULT=E.ID
 LEFT JOIN  sys.extended_properties G  ON  A.ID=G.major_id AND A.COLID=G.minor_id  
 LEFT JOIN  sys.extended_properties F  ON  D.ID=F.major_id AND F.minor_id=0
 where 
  D.name = 'Treestructure'
 ORDER BY D.NAME,A.ID,A.COLORDER