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From "Saurabh Vyas (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (DERBY-1132) Truncation Error with Concat
Date Tue, 14 Nov 2006 15:11:38 GMT
     [ http://issues.apache.org/jira/browse/DERBY-1132?page=all ]

Saurabh Vyas reassigned DERBY-1132:
-----------------------------------

    Assignee: Saurabh Vyas

> Truncation Error with Concat
> ----------------------------
>
>                 Key: DERBY-1132
>                 URL: http://issues.apache.org/jira/browse/DERBY-1132
>             Project: Derby
>          Issue Type: Bug
>          Components: JDBC
>    Affects Versions: 10.1.1.0
>         Environment: Solaris, Windwos, JDK 1.5
>            Reporter: Mitesh Meswani
>         Assigned To: Saurabh Vyas
>         Attachments: repro.java
>
>
> Consider the table
> CREATE TABLE CUSTOMER_TABLE ( ID VARCHAR(255)   PRIMARY KEY NOT NULL, NAMEZ VARCHAR(255)
, COUNTRY VARCHAR(255) )
> Sql:
> PreparedStatement ps = conn.prepateStatement ("SELECT * FROM CUSTOMER_TABLE WHERE NAMEZ
 = VARCHAR ( CAST (? AS VARCHAR(32672) ) || CAST (? AS VARCHAR(32672) ) )" );
> ps.setString(1, "Alan E. ");
> ps.setString(2, "Frechette");
> ps.executeQuery()
> Error:
> "A truncation error was encountered trying to shrink VARCHAR 'Alan E. Frechette' to length
15."
> getErrorCode()-1
> getSQLState()22001 
> Please note that
> -The query executes ok against DB2 database
> -The query executes ok if the total length of both the parameters bound is less than
15. That is as follows
>    //Total length of parameters bound = len("Alan E. Fre") = 11
>    ps.setString(1, "Alan E. ");
>    ps.setString(2, "Fre");
> -The error occurs both with embedded and network mode of derby
> -Omitting the casts as follows also gives the same error
>    query: SELECT * FROM CUSTOMER_TABLE WHERE NAMEZ  = VARCHAR( 'Frechette' || ? )
>    error: SQLState: 22001 "A truncation error was encountered trying to shrink VARCHAR
'FrechetteAlan E. ' to length 15"
> -Using parameter markers for both the variables without cast like as follows results
in error
>    query: SELECT * FROM CUSTOMER_TABLE WHERE NAMEZ  = ? || ?
>    error: SQLState: 42X35 "It is not allowed for both operands of '||' to be ? parameters."
> -Using parameter markers for only one variables without cast like as follows results
in error
>    query: SELECT * FROM CUSTOMER_TABLE WHERE NAMEZ  = 'Frechette' || ?
>    error:SQLState: 42818 "Comparisons between 'VARCHAR' and 'LONG VARCHAR' are not supported."

> -It works to cast to VARCHAR(2000), but not VARCHAR(2001) or larger.  Regardless of length,
if it fails, the magic number is always 15. 

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