Hi,

How do you handle NULL values from you database in your mapfile's expression?

Example (NULL value for some tx_femme):

 CLASS
    EXPRESSION (([tx_femme] > 8) AND ([tx_femme] <= 15))
    NAME "8 - 15"
    STYLE
      COLOR 255 217 0
    END
  END

Doing nothing leads to this error message:

Failure

class:   SoapFaultWrapper
message: Mapserver error: Error in msEvalExpression: Failed to parse expression

Error in msyyparse(): syntax error

Error in msEvalExpression: Failed to parse expression

Error in msyyparse(): syntax error

Error in msEvalExpression: Failed to parse expression

Error in msyyparse(): syntax error

Error in msEvalExpression: Failed to parse expression

Error in msyyparse(): syntax error

Error in msEvalExpression: Failed to parse expression

Error in msyyparse(): syntax error



Best regards,

Emmanuel BELO
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email;internet:[EMAIL PROTECTED]
title;quoted-printable:Ing=C3=A9nieur en g=C3=A9omatique
tel;work:+41 21 691 77 17
tel;fax:+41 21 691 77 86
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url:http://www.microgis.ch
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