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Case expressions may only be nested to level 10.

Posted on 2010-11-24
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Medium Priority
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Last Modified: 2012-06-27
Hello,

I search a workaround for resolve the error Case expressions may only be nested to level 10 in SQLSERVER 2000, I haven't the error in SQL SERVER 2008 when I execute the query :
declare @sql1 nvarchar(4000)
set @sql1 = 'INSERT INTO [Ref_Personnes_RAYON]
           ([PERS_CODE]
           ,[PERS_NOM]
           ,[PERS_PRENOM]
           ,[PERS_EMAIL]
           ,[TYPE_ID])

SELECT DISTINCT
pers.PER_CODE , pers.PER_NOM,
pers.PER_PRENOM, pers.PER_EMAIL,
(case emp.EMP_CODE
when ''ASSISTANT CHEF DE RAYON'' then 1
when ''ASSISTANT CHEF DE RAYON (BAT)'' then 1
when ''CHEF DE RAYON'' then 1
when ''CHEF DE RAYON 1.ECH'' then 1
when ''CHEF DE RAYON 1er echelon'' then 1
when ''CHEF DE RAYON 2 ECH'' then 1
when ''CHEF DE RAYON 2 ECH (BAT)'' then 1
when ''CHEF DE RAYON 2.ECH'' then 1
when ''CHEF DE RAYON 2.ECH (CAN)'' then 1
when ''CHEF DE RAYON 2eme ECHELON'' then 1
when ''CHEF DE RAYON 3.ECH'' then 1
when ''MAITRE COMPAGNON'' then 1
when ''MAITRE COMPAGNON PRINCIPAL'' then 1
when ''CHEF DE TACHES'' then 2
when ''CHEF DE TACHES 1.A'' then 2
when ''CHEF DE TACHES 1.B'' then 2
when ''CHEF DE TACHES 1.ECH'' then 2
when ''CHEF DE TACHES 2E'' then 2
when ''CHEF DE TACHES PRINCIPAL'' then 2
when ''CHEF TRAVX.'' then 2
when ''CONDUCTRICE DE TACHES'' then 2
when ''CONDUCTRICE DE TACHES PRINCIPALE'' then 2
when ''INGENIEUR TACHES'' then 2
when ''INGENIEUR TACHES DEBUTANT'' then 2
when ''INGENIEUR TACHES PRINCIPAL'' then 2
when ''AIDE CHEF DE TACHES'' then 2
when ''AIDE CHEF TACHES'' then 2
when ''AIDE CHEF TRAVX'' then 2
when ''ASSISTANT CHEF DE TACHES'' then 2
when ''ASSISTANT CHEF TACHES'' then 2
when ''DIRECTEUR DE TACHES'' then 2
when ''DIRECTEUR DE TACHES BATIMENT'' then 2
when ''DIRECTEUR TACHES'' then 2
when ''CHEF COMPTABLE'' then 3
when ''COMPTABLE'' then 3
when ''COMPTABLE 1.ECH'' then 3
when ''CONTROLEUR DE GESTION'' then 3
when ''CONTROLEUSE DE GESTION'' then 3
end)


FROM ['+@Srvsource + '].['+ @Dbsource + '].[dbo].PERSONNEL pers
INNER JOIN ['+@Srvsource + '].['+ @Dbsource + '].[dbo].EMPLOIE emp ON pers.EMP_ID = emp.EMP_ID
INNER JOIN ['+@Srvsource + '].['+ @Dbsource + '].[dbo].ENTITE ent ON pers.ENT_ID = ent.ENT_ID
AND emp.ENT_ID = ent.ENT_ID
INNER JOIN ['+@Srvsource + '].['+ @Dbsource + '].[dbo].SOCIETE soc ON ent.SOC_ID = soc.SOC_ID
WHERE
(ent.ENT_CODE = ''275'')
      AND (
emp.EMP_CODE = ''ASSISTANT CHEF DE RAYON''
OR emp.EMP_CODE = ''ASSISTANT CHEF DE RAYON (BAT)''
OR emp.EMP_CODE = ''CHEF DE RAYON''
OR emp.EMP_CODE = ''CHEF DE RAYON 1.ECH''
OR emp.EMP_CODE = ''CHEF DE RAYON 1er echelon''
OR emp.EMP_CODE = ''CHEF DE RAYON 2 ECH''
OR emp.EMP_CODE = ''CHEF DE RAYON 2 ECH (BAT)''
OR emp.EMP_CODE = ''CHEF DE RAYON 2.ECH''
OR emp.EMP_CODE = ''CHEF DE RAYON 2.ECH (CAN)''
OR emp.EMP_CODE = ''CHEF DE RAYON 2eme ECHELON''
OR emp.EMP_CODE = ''CHEF DE RAYON 3.ECH''
OR emp.EMP_CODE = ''MAITRE COMPAGNON''
OR emp.EMP_CODE = ''MAITRE COMPAGNON PRINCIPAL''
OR emp.EMP_CODE = ''CHEF DE TACHES''
OR emp.EMP_CODE = ''CHEF DE TACHES 1.A''
OR emp.EMP_CODE = ''CHEF DE TACHES 1.B''
OR emp.EMP_CODE = ''CHEF DE TACHES 1.ECH''
OR emp.EMP_CODE = ''CHEF DE TACHES 2E''
OR emp.EMP_CODE = ''CHEF DE TACHES PRINCIPAL''
OR emp.EMP_CODE = ''CHEF TRAVX.''
OR emp.EMP_CODE = ''CONDUCTRICE DE TACHES''
OR emp.EMP_CODE = ''CONDUCTRICE DE TACHES PRINCIPALE''
OR emp.EMP_CODE = ''INGENIEUR TACHES''
OR emp.EMP_CODE = ''INGENIEUR TACHES DEBUTANT''
OR emp.EMP_CODE = ''INGENIEUR TACHES PRINCIPAL''
OR emp.EMP_CODE = ''AIDE CHEF DE TACHES''
OR emp.EMP_CODE = ''AIDE CHEF TACHES''
OR emp.EMP_CODE = ''AIDE CHEF TRAVX''
OR emp.EMP_CODE = ''ASSISTANT CHEF DE TACHES''
OR emp.EMP_CODE = ''ASSISTANT CHEF TACHES''
OR emp.EMP_CODE = ''DIRECTEUR DE TACHES''
OR emp.EMP_CODE = ''DIRECTEUR DE TACHES BATIMENT''
OR emp.EMP_CODE = ''DIRECTEUR TACHES''
OR emp.EMP_CODE = ''CHEF COMPTABLE''
OR emp.EMP_CODE = ''COMPTABLE''
OR emp.EMP_CODE = ''COMPTABLE 1.ECH''
OR emp.EMP_CODE = ''CONTROLEUR DE GESTION''
OR emp.EMP_CODE = ''CONTROLEUSE DE GESTION''
)'


exec (@sql1)
print (@sql1)

Thanks

bibi
0
Comment
Question by:bibi92
  • 2
4 Comments
 
LVL 143

Accepted Solution

by:
Guy Hengel [angelIII / a3] earned 2000 total points
ID: 34205268
>case emp.EMP_CODE

I would put the EMP_CODE  + result value into a lookup table, and join to that

create table l_EMP_CODE_rCode ( EMP_CODE varchar(100) primary key, rCode int )

INSERT INTO l_EMP_CODE_rCode ( EMP_CODE, rCode ) VALUES ( 'MAITRE COMPAGNON PRINCIPAL' , 1 ) 
INSERT INTO l_EMP_CODE_rCode ( EMP_CODE, rCode ) VALUES ( 'MAITRE COMPAGNON' , 1 ) 
--- etc for the other values

Open in new window

you will have to create and fill table table just once.

and your query will change to:

declare @sql1 nvarchar(4000)
set @sql1 = 'INSERT INTO [Ref_Personnes_RAYON]
           ([PERS_CODE]
           ,[PERS_NOM]
           ,[PERS_PRENOM]
           ,[PERS_EMAIL]
           ,[TYPE_ID])

SELECT DISTINCT
pers.PER_CODE , pers.PER_NOM, 
pers.PER_PRENOM, pers.PER_EMAIL, 
x.rCode
FROM ['+@Srvsource + '].['+ @Dbsource + '].[dbo].PERSONNEL pers
INNER JOIN ['+@Srvsource + '].['+ @Dbsource + '].[dbo].EMPLOIE emp ON pers.EMP_ID = emp.EMP_ID 
INNER JOIN ['+@Srvsource + '].['+ @Dbsource + '].[dbo].ENTITE ent ON pers.ENT_ID = ent.ENT_ID 
AND emp.ENT_ID = ent.ENT_ID 
INNER JOIN ['+@Srvsource + '].['+ @Dbsource + '].[dbo].SOCIETE soc ON ent.SOC_ID = soc.SOC_ID
INNER JOIN l_EMP_CODE_rCode x
  ON x.EMP_CODE = emp.EMP_CODE
WHERE
(ent.ENT_CODE = ''275'') 
'


exec (@sql1)
print (@sql1)

Open in new window

0
 
LVL 70

Expert Comment

by:Scott Pletcher
ID: 34206120
Or maybe:

case WHEN emp.EMP_CODE IN (''ASSISTANT CHEF DE RAYON'', ''ASSISTANT CHEF DE RAYON (BAT)'' , ''CHEF DE RAYON'', ''CHEF DE RAYON 1.ECH'', ''CHEF DE RAYON 1er echelon'', ''CHEF DE RAYON 2 ECH'', ''CHEF DE RAYON 2 ECH (BAT)'', ''CHEF DE RAYON 2.ECH'', ...)
    THEN 1
WHEN emp.EMP_CODE IN (''CHEF DE TACHES'', ''CHEF DE TACHES 1.A'', ...)
    THEN 2
WHEN emp.EMP_CODE IN (''CHEF COMPTABLE'', ''COMPTABLE'', ...)
    THEN 3
end)


I don't really see "nesting" in this code, though; kind of odd.
0
 
LVL 143

Expert Comment

by:Guy Hengel [angelIII / a3]
ID: 34206148
note that the code you posted cannot give the error message you indicated, as there were not nested CASE, as Scott indicated (good catch)
0
 

Author Closing Comment

by:bibi92
ID: 34206375
Thanks a lot regards bibi
0

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