Writer Feature Type Properties: User Attributes

For information on the parameters in this dialog that are specific to all formats, see About Writer Feature Types: User Attributes

User attributes for this format are defined below.

Name The name of the field to be written.
Type

This section describes the attribute types for a table.

Not all JDBC attribute types are implemented by all databases. Using an unsupported type will result in errors during table creation. In addition, databases often implement types in slightly different ways, so the descriptions below may not be accurate in all cases.

Index

The type of index or constraint to create for the column. Indexes and constraints are only created if the table is created.

The valid values for the column type are listed below:

PrimaryKey: Create a Primary Key index on the column.

Unique: Only one of each non-null value is allowed in the column.

NotNull: Nulls are not allowed in the column.

UniqueNotNull: Only one of each value is allowed in the column. Nulls are not allowed.