[ http://issues.apache.org/jira/browse/DERBY-37?page=comments#action_64845 
]
     
Mamta A. Satoor commented on DERBY-37:
--------------------------------------

I tried following on Derby and didn't get any comparison errors. 
    s.executeUpdate("create table xxxx (COLUMN_A INT, COLUMN_B INT )");
    PreparedStatement ps = con.prepareStatement("select * from xxxx where 
COLUMN_B >= ?");
    ps.setInt(1,1);
    ps.execute();


> detection of incorrect types comparison is done at ? parameters
> ---------------------------------------------------------------
>
>          Key: DERBY-37
>          URL: http://issues.apache.org/jira/browse/DERBY-37
>      Project: Derby
>         Type: Bug
>  Environment: Cloudscape 10 beta 
>     Reporter: Erik Bengtson

>
> java code:
> PreparedStatement ps = conn.prepareStatement(statement);
> This statement:
> SELECT 
> THIS.CODE_EID,THIS.COMPOSED_EID,'org.jpox.samples.applicationidentity.ChildComposedIntID'
>  as JPOXMETADATA ,THIS.INTEGER_IDX AS 
> JPOXORDER0,ELEMENT_1.CODE,ELEMENT_1.COMPOSED,ELEMENT_1.DESCRIPTION,ELEMENT_1."NAME"
>  FROM NORMALLISTAPPLICATIONID_COMPOS THIS INNER JOIN CHILDCOMPOSEDINTID 
> "ELEMENT" ON THIS.CODE_EID = "ELEMENT".CODE AND THIS.COMPOSED_EID = 
> "ELEMENT".COMPOSED INNER JOIN COMPOSEDINTID ELEMENT_1 ON "ELEMENT".CODE = 
> ELEMENT_1.CODE AND "ELEMENT".COMPOSED = ELEMENT_1.COMPOSED WHERE 
> THIS.NORMALLISTAPPLICATIONID_ID_OID = ? AND THIS.INTEGER_IDX >= ? ORDER BY 
> JPOXORDER0
> results in:
> SQL Exception: Comparisons between 'VARCHAR' and 'INTEGER' are not supported.
> possible cause:
> The INTEGER_IDX is an INTEGER column. While running the prepareStatement, 
> JDBC/Cloudscape thinks I'm comparing INTEGER_IDX with ? (question mark) 
> (INTEGER vs VARCHAR). This is not true, ? (question mark) is a parameter that 
> will be later substitued in my code by an integer value.

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