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  1. I have a Seller model that has_many Items. I want to get the total sale price of all of a Seller\'s items. In seller.rb I have. def total_item_cost items.to_a.sum ...
    stackoverflow.com/.../treating-nil-as-​zero-in-sum-function - Cached
  2. ... is there a way to make mySQL treat \"NULL\" as \"0\" when dealing with mathematical functions? ... • sum() Function and NULL values: Tim Gustafson: 16 Dec • Re ...
    lists.mysql.com/mysql/177425 - Cached
  3. The SET ANSI_WARNINGS ON also affects how SQL Server handles division by zero, ... returns NULL. If we use the SUM() function on ... treating the NULL rows as ...
    www.sqlservercentral.com/articles/​Advanced+Querying/...
  4. The function \'COALESCE\' can simplify working with null values. for example, to treat null as zero, you can use: select COALESCE(colname,0) from table where
    dev.mysql.com/doc/refman/5.0/en/working-​with-null.html - Cached
  5. Visit publisher\'s web-site: Zero and Null Sum Function. Category and Tags: Excel › Tutorials: Visit publisher\'s web-site. Related Tutorials. Sum a NULL cell. Free: Yes.
    tutorialsources.com/.../zero-and-null-​sum-functio n.htm - Cached
  6. If you SUM a NULL then it won\'t know if this is a ... (ISNULL(YourColumn, 0)) which will replace any null values with a zero and include these zero\'s in the SUM ...
    bytes.com/.../answ ers/143223-question-​about-sum-nulls - Cached
  7. It appears SUM function and addition operator behave differently ... you are saying \'if x or y is null, treat them as if they were zero\'. Apples and pears.
    asktom.oracle.com/pls/asktom/ ​f?p=100:11:0::::P11... - Cached
  8. Experts Exchange > Programming > Prog Languages > Visual Basic Classic > Convert a null to zero...Nz function ... rid of the null for the sum, .. . we treat each ...
    www.experts-exchange.com/Programming/​Languages/Visual...
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  9. It would be appreciated explaining the internal functionality of SUM function ... It may appear to the casual observer as though SUM is treating NULL entries as zero.
    stackoverflow.com/questions/17511567/​why-sumnull-is-not-0 - Cached
  10. ... the result is NULL. Microsoft\'s ISNULL() function is used to specify how we want to treat NULL values. ... In this case we want NULL values to be zero.
    www.w3schools.com/sql/sql_isnull.asp - Cached