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https://issues.apache.org/jira/browse/DERBY-4949?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rick Hillegas updated DERBY-4949:
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Description:
If you try to get a Time value out of an INTEGER column, the client driver
gives this error. I believe that similar nonsense comes back when you try other
mismatched getters on other datatypes:
"An attempt was made to get a data value of type 'java.sql.Types 4' from a
data value of type 'java.sql.Time'."
The exception is a java.sql.SQLDataException with SQLState 22005. The embedded
driver returns a better message:
"An attempt was made to get a data value of type 'java.sql.Time' from a
data value of type INTEGER'."
I recommend two improvements to the utility method which generates these
exceptions:
1) Flip the order of the type names.
2) Use the ResultSetMetaData to look up the source data type name.
was:
If you try to get a Time value out of an INTEGER column, the client driver
gives this error. I believe that similar nonsense comes back when you try other
mismatched getters on other datatypes:
"An attempt was made to get a data value of type 'java.sql.Types 4' from a
data value of type 'java.sql.Time'."
The exception is a java.sql.SQLDataException with SQLState 22005. A better
message would be:
"An attempt was made to get a data value of type 'java.sql.Time' from a
data value of type INTEGER'."
I recommend two improvements to the utility method which generates these
exceptions:
1) Flip the order of the type names.
2) Use the ResultSetMetaData to look up the source data type name.
Bug behavior facts: [Embedded/Client difference]
> Backward, confusing error message when you use the wrong ResultSet.getXXX()
> method in the client driver
> -------------------------------------------------------------------------------------------------------
>
> Key: DERBY-4949
> URL: https://issues.apache.org/jira/browse/DERBY-4949
> Project: Derby
> Issue Type: Bug
> Components: Network Client
> Affects Versions: 10.8.0.0
> Reporter: Rick Hillegas
> Attachments: zz.java
>
>
> If you try to get a Time value out of an INTEGER column, the client driver
> gives this error. I believe that similar nonsense comes back when you try
> other mismatched getters on other datatypes:
> "An attempt was made to get a data value of type 'java.sql.Types 4' from
> a data value of type 'java.sql.Time'."
> The exception is a java.sql.SQLDataException with SQLState 22005. The
> embedded driver returns a better message:
> "An attempt was made to get a data value of type 'java.sql.Time' from a
> data value of type INTEGER'."
> I recommend two improvements to the utility method which generates these
> exceptions:
> 1) Flip the order of the type names.
> 2) Use the ResultSetMetaData to look up the source data type name.
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