SOQL Questions

Q. Does anyone know an easy way to simulate a SELECT DISTINCT operation in SOQL?
Also, how do you check for NULL in a WHERE clause. I know IS NULL does not work?

A. SELECT Id FROM CASE WHERE Id <> null
or
SELECT Id FROM CASE WHERE Id = null

don't think there's anything like distinct though

http://community.salesforce.com/sforce/board/message?board.id=NET_development&message.id=2406&query.id=8066#M2406

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Q. Join
Accessing Query Results from a Relationship Query from the Partner WSDL with Axis for Java

http://wiki.apexdevnet.com/index.php/Accessing_Query_Results_from_a_Relationship_Query_from_the_Partner_WSDL_with_Axis_for_Java







Q. Update many rows

sql = "select id from Product2 where ProductCode like '%.jp%' and Family <> 'blog' "
query_result = client.query( sql )

if ( query_result['records'].__len__() < 1 ): 
  self.response.out.write('no product found with : %s ' % sql )
else   :
  products = query_result['records']
  for  product in products:       
    product['Family'] = 'blog'
    results = client.update( product )

    self.response.out.write( results )
    if results[0]['success'] :
      self.response.out.write( 'updated. ' )
    else:
      self.response.out.write( results[0]['errors'] )
      self.response.out.write( 'Error. ' )