On Mon, Feb 3, 2014 at 10:50 AM, Andrea Aime
<andrea.a...@geo-solutions.it>wrote:
> Anyone has better ideas? :-)
> We could also have a look at the attribute metadata and see if the column
> is nullable, or not.
>
Speaking of which:
http://docs.oracle.com/javase/7/docs/api/java/sql/DatabaseMetaData.html#getColumns(java.lang.String,
java.lang.String, java.lang.String, java.lang.String)
1. *NULLABLE* int => is NULL allowed.
- columnNoNulls - might not allow NULL values
- columnNullable - definitely allows NULL values
- columnNullableUnknown - nullability unknown
and:
1. *IS_NULLABLE* String => ISO rules are used to determine the
nullability for a column.
- YES --- if the column can include NULLs
- NO --- if the column cannot include NULLs
- empty string --- if the nullability for the column is unknown
Doh? Why two ways? I guess the second is better, does not contain "might"
in the non null spec
Cheers
Andrea
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