Oracle Table Index Editor

A primary key (PK) and a foreign key (FK) index are automatically created for each table in your model, based on the primary key and foreign key columns. If you designate columns as an alternate key group (AK) or inversion entry group (IE), the equivalent unique (AK) and non-unique (IE) indexes are also generated.

Use the Oracle Table Index Editor to create alternate key (unique) and inversion entry (non-unique) indexes for tables in your model. After you create an index, you can use the Oracle Table Index Editor to modify its properties, such as the index name, column members, physical properties, and user-defined properties.

Use the Generate as Constraint option so that Forward Engineering generates a constraint based on the information in the selected index. The types of constraints created from indexes are:

Unique Constraint

Prohibits multiple rows from having the same value in the same column or a combination of columns but allows some values to be NULL.

Primary Key Constraint

Combines a NOT NULL constraint and a unique constraint in a single declaration. That is, it prohibits multiple rows from having the same value in the same column or a combination of columns, and prohibits NULL values.

Foreign Key Constraint

Requires the values in one table to match the values in another table.

The following properties are applicable to an Oracle Table object.

Tab	Section	Property	Description	Additional Information
		Table	Specifies the table to which the index belongs
		Show FK Indexes	Specifies whether FK indexes are displayed in the navigation grid
		Physical Name	Specifies the physical name of the table
		Owner	Specifies the database owner
		Type	Specifies the index type
		Is Unique	Specifies whether unique values are allowed in the index
		Physical Only	Specifies whether the index should only appear in the physical model
		Generate	Specifies whether a SQL statement for the index is generated during forward engineering
		Generate As Constraint	Specifies whether the index is generated as a constraint and the corresponding SQL statement is generated during forward engineering
Members		Column	Specifies the columns of the table that participate in the index
		Sort Order	Specifies the column sort order for indexing
		Column/Expression	Specifies the column expression on which the index is based
Constraint		Constraint Name	Specifies the key constraint name
		Deferrable	Specifies whether dependent cursors are invalidated while creating the index
		Immediate/Deferred	Specifies when the dependent cursors are invalidated	Immediate: Indicates that dependent cursors are invalidated immediately Deferred: Indicates that invalidating the dependent cursors is avoided
		Rely	Specifies whether a constraint in the NOVALIDATE mode is considered for query rewrite	Rely: Indicates that the constraint is considered for query rewrite NoRely: Indicates that the constraint is not considered for query rewrite
		Validate	Specifies whether all the new and old data complies with the constraint	Validate: Indicates that all the data complies with the constraint when it is enabled NoValidate: Indicates that all DML operations on the constrained data comply with the constraint. However, it does not ensure whether existing data complies with the constraint.
		Enabled	Specifies whether the constraint is enabled on the index
		Exception Table	Specifies the table that collects the rowids of all rows that violate the constraint
		Use Index
Options		Is Unique	Specifies that the value of the column (or columns) on which the index is based must be unique
		Bitmap	Specifies whether the index is created with a bitmap for each distinct key
		Table Alias	Specifies a correlation name for the table on which the index is being built
		Reverse Store	Specifies whether the bytes of the index block, excluding the rowid, are stored in a reverse order
		Online	Specifies whether DML operations on the table are allowed during index creation
		Use Parallel	Specifies whether the index creation is parallelized
		Parallel	Specifies the degree of parallelism
		Compress Type	Specifies the compression technique to be used for index compression	No Compress: Indicates the compression is disabled Prefix: Indicates that repeated occurrence of key column values are eliminated Advanced Low: Indicates that index is compressed less than the HIGH level, but provides faster access to the index Advance High: Indicates that index is compressed more than the LOW level, but provides faster access to the index
		Compress Prefix Length	Specifies the number of prefix columns to compress	Available only when Compress Type is set to Prefix
		Logging	Specifies whether index creation is logged in the redo log file	Logging: Indicates that index creation of a database object and the subsequent inserts into the object are logged in the redo log file No Logging: Indicates that index creation is not logged in the redo log file File System Like Logging: Indicates whether only metadata changes are logged
		Visible	Specifies whether the index is visible to the optimizer
		No Sort	Specifies whether the rows are already stored in the database in ascending order
		Indexing	Specifies whether indexing is full or partial	Applicable only to an index on a partitioned table Full: Indicates that all partitions in underlying table are included in the index irrespective of their indexing properties Partial: Indicates that only the partitions in underlying table with the indexing property set to ON are included in the index
		Usable	Specifies whether the index is usable	For non-partitioned indexes, indicates whether the index is created in a usable state For partitioned indexes, indicates whether all index partitions are usable or unusable
		Invalidation	Specifies when the dependent cursors are invalidated while index creation	Immediate: Indicates that dependent cursors are invalidated immediately Deferred: Indicates that invalidating the dependent cursors is avoided
Storage		Name	Specifies the physical storage object for the index
Partition	Index Partition Type	Index Partition Type	Specifies the index partition type	Global: Indicates that index partitioning is user defined and is not equi-partitioned with the underlying table Local: Indicates that the index is partitioned on the same columns, with the same number of partitions and the same partition bounds as table
		Index Global Partition Type	Specifies whether the global index is hash-partitioned or range-partitioned
		Index Local Partition Type	Specifies whether type of partitioned table on which the index is created
	Partition Columns	Columns	Specifies the columns that participate in the partition
	Hash Partition Type	Hash Partition Type		Available only when Index Global Partition Type is set to Hash
		Hash Partition Quantity		Available only when Index Global Partition Type is set to Hash
		Compress Type		Available only when Index Global Partition Type is set to Hash
		Compress Prefix Length		Available only when Index Global Partition Type is set to Hash and Compress Type is set to Prefix
	Tablespaces for Quantity	Name
	Partition Elements	Name
		Partition Value
		Compress Type
		Compress Prefix Length
		Usable
		Logging

Members

Lets you specify index members.

Constraint State

Lets you assign constraint state properties.

Physical

Lets you assign physical property options.

Partitions

Lets you select partition type and partition type options.

Where Used

Lets you view where the object is used in the model.

Comment

Lets you enter any comments that you want to associate with the object.

UDP

Lets you enter user-defined property values for the object.

Notes

Lets you view or edit user notes.