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Oracle® Data Provider for .NET Developer's Guide
11g Release 1 (11.1)

B28375-01
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ODP.NET-Specific Schema Collection

Oracle Data Provider for .NET supports both the common schema collections described previously and the following Oracle-specific schema collections:

Tables

Table A-6 lists the column name, data type, and description of the Tables Schema Schema Collection.

Table A-6 Tables

Column Name Data Type Description

OWNER

String

Owner of the Table.

TABLE_NAME

String

Name of the Table.

TYPE

String

Type of Table, for example, System or User.


Columns

Table A-7 lists the column name, data type, and description of the Columns Schema Collection .

Table A-7 Columns

ColumnName Data Type Description

OWNER

String

Owner of the table or view.

TABLE_NAME

String

Name of the table or view.

COLUMN_NAME

String

Name of the column.

ID

Decimal

Sequence number of the column as created.

DATATYPE

String

Data type of the column.

LENGTH

Decimal

Length of the column in bytes.

PRECISION

Decimal

Decimal precision for NUMBER data type; binary precision for FLOAT data type, null for all other data types.

Scale

Decimal

Digits to right of decimal point in a number.

NULLABLE

String

Specifies whether or not a column allows NULLs.

CHAR_USED

String

Indicates whether the column uses BYTE length semantics (B) or CHAR length semantics (C).

LengthInChars

Decimal

Length of the column in characters.

This value only applies to CHAR, VARCHAR2, NCHAR, and NVARCHAR2.


Views

Table A-8 lists the column name, data type, and description of the Views Schema Collection.

Table A-8 Views

Column Name Data Type Description

OWNER

String

Owner of the view.

VIEW_NAME

String

Name of the view.

TEXT_LENGTH

Decimal

Length of the view text.

TEXT

String

View text.

TYPE_TEXT_LENGTH

Decimal

Length of the type clause of the typed view.

TYPE_TEXT

String

Type clause of the typed view.

OID_TEXT_LENGTH

Decimal

Length of the WITH OID clause of the typed view.

OID_TEXT

String

WITH OID clause of the typed view.

VIEW_TYPE_OWNER

String

Owner of the view type if the view is a typed view.

VIEW_TYPE

String

Type of the view if the view is a typed view.

SUPERVIEW_NAME

String

Name of the superview.

(Oracle9i or later)


XMLSchema

Table A-9 lists the column name, data type and description of the XMLSchema Schema Collection.

Note:

This collection is only available with Oracle Database 10g and later.

Table A-9 XMLSchema

Column Name Data Type Description

OWNER

String

Owner of the XML schema.

SCHEMA_URL

String

Schema URL of the XML schema.

LOCAL

String

Indicates whether the XML schema is local (YES) or global (NO).

SCHEMA

String

XML schema document.

INT_OBJNAME

String

Internal database object name for the schema.

QUAL_SCHEMA_URL

String

Fully qualified schema URL.

HIER_TYPE

String

Hierarchy type for the schema.


Users

Table A-10 lists the column name, data type and description of the Users Schema Collection.

Table A-10 Users

Column Name Data Type Description

NAME

String

Name of the user.

ID

Decimal

ID number of the user.

CREATEDATE

DateTime

User creation date.


Synonyms

Table A-11 lists the column name, data type and description of the Synonyms Schema Collection.

Table A-11 Synonyms

Column Name Data Type Description

OWNER

String

Owner of the synonym.

SYNONYM_NAME

String

Name of the synonym.

TABLE_OWNER

String

Owner of the object referenced by the synonym. Although the column is called TABLE_OWNER, the object owned is not necessarily a table. It can be any general object such as a view, sequence, stored procedure, synonym, and so on.

TABLE_NAME

String

Name of the object referenced by the synonym. Although the column is called TABLE_NAME, the object does not necessarily have to be a table. It can be any general object such as a view, sequence, stored procedure, synonym, and so on.

DB_LINK

String

Name of the database link referenced, if any.


Sequences

Table A-12 lists the column name, data type, and description of the Sequences Schema Collection.

Table A-12 Sequences

Column Name Data Type Description

SEQUENCE_OWNER

String

Name of the owner of the sequence.

SEQUENCE_NAME

String

Sequence name.

MIN_VALUE

Decimal

Minimum value of the sequence.

MAX_VALUE

Decimal

Maximum value of the sequence.

INCREMENT_BY

Decimal

Value by which sequence is incremented.

CYCLE_FLAG

String

Indicates if sequence wraps around on reaching limit.

ORDER_FLAG

String

Indicates if sequence numbers are generated in order.

CACHE_SIZE

Decimal

Number of sequence numbers to cache.

LAST_NUMBER

Decimal

Last sequence number written to disk. If a sequence uses caching, the number written to disk is the last number placed in the sequence cache. This number is likely to be greater than the last sequence number that was used.


Functions

Table A-13 lists the column name, data type, and description of the Functions Schema Collection.

Table A-13 Functions

Column Name Data Type Description

OWNER

String

Owner of the function.

OBJECT_NAME

String

Name of the function.

SUBOBJECT_NAME

String

Name of the subobject (for example, partition).

OBJECT_ID

Decimal

Dictionary object number of the function.

DATA_OBJECT_ID

Decimal

Dictionary object number of the segment that contains the function.

CREATED

DateTime

Timestamp for the creation of the function.

LAST_DDL_TIME

DateTime

Timestamp for the last modification of the function resulting from a DDL statement (including grants and revokes).

TIMESTAMP

String

Timestamp for the specification of the function (character data).

STATUS

String

Status of the function (VALID, INVALID, or N/A).

TEMPORARY

String

Whether or not the function is temporary (the current session can see only data that it placed in this object itself).

GENERATED

String

Indicates whether the name of this function is system generated (Y) or not (N).

SECONDARY

String

Whether or not this is a secondary object created by the ODCIIndexCreate method of the Oracle Data Cartridge (Y | N).


Procedures

Table A-14 lists the column name, data type, and description of the Procedures Schema Collection.

Table A-14 Procedures

Column Name Data Type Description

OWNER

String

Owner of the procedure.

OBJECT_NAME

String

Name of the procedure.

SUBOBJECT_NAME

String

Name of the subobject (for example, partition).

OBJECT_ID

Decimal

Dictionary object number of the procedure.

DATA_OBJECT_ID

Decimal

Dictionary object number of the segment that contains the procedure.

CREATED

DateTime

Timestamp for the creation of the procedure.

LAST_DDL_TIME

Decimal

Timestamp for the last modification of the procedure resulting from a DDL statement (including grants and revokes).

TIMESTAMP

String

Timestamp for the specification of the procedure (character data).

STATUS

String

Status of the procedure (VALID, INVALID, or N/A).

TEMPORARY

String

Whether or not the procedure is temporary (the current session can see only data that it placed in this object itself).

GENERATED

String

Indicates whether the name of this procedure is system generated (Y) or not (N).

SECONDARY

String

Whether or not this is a secondary object created by the ODCIIndexCreate method of the Oracle Data Cartridge (Y | N).


ProcedureParameters

Table A-15 lists the column name, data type and description of the ProcedureParameters Schema Collection.

Table A-15 ProcedureParameters

Column Name Data Type Description

OWNER

String

Owner of the object.

OBJECT_NAME

String

Name of the procedure or function.

PACKAGE_NAME

String

Name of the package.

OBJECT_ID

Decimal

Object number of the object.

OVERLOAD

String

Indicates the nth overloading ordered by its appearance in the source; otherwise, it is NULL.

SUBPROGRAM_ID

Decimal

Subprogram id for the procedure or function

ARGUMENT_NAME

String

If the argument is a scalar type, then the argument name is the name of the argument. A null argument name is used to denote a function return value.

POSITION

Decimal

If DATA_LEVEL is zero, then this column holds the position of this item in the argument list, or zero for a function return value.

SEQUENCE

Decimal

Defines the sequential order of the argument. Argument sequence starts from 1.

DATA_LEVEL

Decimal

Nesting depth of the argument for composite types.

DATA_TYPE

String

Data type of the argument.

DEFAULT_VALUE

String

Default value for the argument.

DEFAULT_LENGTH

Decimal

Length of the default value for the argument.

IN_OUT

String

Direction of the argument: [IN] [OUT] [IN/OUT].

DATA_LENGTH

Decimal

Length of the column (in bytes).

DATA_PRECISION

Decimal

Length in decimal digits (NUMBER) or binary digits (FLOAT).

DATA_SCALE

Decimal

Digits to the right of the decimal point in a number.

RADIX

Decimal

Argument radix for a number.

CHARACTER_SET_NAME

String

Character set name for the argument.

TYPE_OWNER

String

Owner of the type of the argument.

TYPE_NAME

String

Name of the type of the argument. If the type is a package local type (that is, it is declared in a package specification), then this column displays the name of the package.

TYPE_SUBNAME

String

Displays the name of the type declared in the package identified in the TYPE_NAME column.

Relevant only for package local types.

TYPE_LINK

String

Displays the database link that refers to the remote package.

Relevant only for package local types when the package identified in the TYPE_NAME column is a remote package.

PLS_TYPE

String

For numeric arguments, the name of the PL/SQL type of the argument. Otherwise, Null.

CHAR_LENGTH

Decimal

Character limit for string data types.

CHAR_USED

String

Indicates whether the byte limit (B) or character limit (C) is official for the string.


Arguments

Table A-16 lists the column name, data type, and description of the Arguments Schema Collection.

Table A-16 Arguments

Column Name Data Type Description

OWNER

String

Owner of the object.

PACKAGE_NAME

String

Name of the package.

OBJECT_NAME

String

Name of the procedure or function.

ARGUMENT_NAME

String

If the argument is a scalar type, then the argument name is the name of the argument. A null argument name is used to denote a function return value.

POSITION

Decimal

If DATA_LEVEL is zero, then this column holds the position of this item in the argument list, or zero for a function return value.

SEQUENCE

Decimal

Defines the sequential order of the argument. Argument sequence starts from 1.

DEFAULT_VALUE

String

Default value for the argument.

DEFAULT_LENGTH

Decimal

Length of the default value for the argument.

IN_OUT

String

Direction of the argument: [IN] [OUT] [IN/OUT].

DATA_LENGTH

Decimal

Length of the column (in bytes).

DATA_PRECISION

Decimal

Length in decimal digits (NUMBER) or binary digits (FLOAT).

DATA_SCALE

Decimal

Digits to the right of the decimal point in a number.

DATA_TYPE

String

Data type of the argument.

CHAR_USED

String

Indicates whether the column uses BYTE length semantics (B) or CHAR length semantics (C).


Packages

Table A-17 lists the column name, data type, and description of the Packages Schema Collection.

Table A-17 Packages

Column Name Data Type Description

OWNER

String

Owner of the package.

OBJECT_NAME

String

Name of the package.

SUBOBJECT_NAME

String

Name of the subobject (for example, partition).

OBJECT_ID

Decimal

Dictionary object number of the package.

DATA_OBJECT_ID

Decimal

Dictionary object number of the segment that contains the package.

CREATED

DateTime

Timestamp for the creation of the package.

LAST_DDL_TIME

DateTime

Timestamp for the last modification of the package resulting from a DDL statement (including grants and revokes).

TIMESTAMP

String

Timestamp for the specification of the package (character data).

STATUS

String

Status of the package (VALID, INVALID, or N/A).

TEMPORARY

String

Whether or not the package is temporary (the current session can see only data that it placed in this object itself).

GENERATED

String

Indicates whether the name of this package was system generated (Y) or not (N).

SECONDARY

String

Whether or not this is a secondary object created by the ODCIIndexCreate method of the Oracle Data Cartridge (Y | N).


PackageBodies

Table A-18 lists the column name, data type, and description of the PackageBodies Schema Collection.

Table A-18 PackageBodies

Column Name Data Type Description

OWNER

String

Owner of the package body.

OBJECT_NAME

String

Name of the package body.

SUBOBJECT_NAME

String

Name of the subobject (for example, partition).

OBJECT_ID

Decimal

Dictionary object number of the package body.

DATA_OBJECT_ID

Decimal

Dictionary object number of the segment that contains the package body.

CREATED

DateTime

Timestamp for the creation of the package body.

LAST_DDL_TIME

DateTime

Timestamp for the last modification of the package body resulting from a DDL statement (including grants and revokes).

TIMESTAMP

String

Timestamp for the specification of the package body (character data).

STATUS

String

Status of the package body (VALID, INVALID, or N/A).

TEMPORARY

String

Whether the package body is temporary (the current session can see only data that it placed in this object itself).

GENERATED

String

Indicates whether the name of this package body is system generated (Y) or not (N).

SECONDARY

String

Whether or not this is a secondary object created by the ODCIIndexCreate method of the Oracle Data Cartridge (Y | N).


JavaClasses

Table A-19 lists the column name, data type, and description of the JavaClasses Schema Collection.

Table A-19 JavaClasses

Column Name Data Type Description

OWNER

String

Owner of the Java class.

NAME

String

Name of the Java class.

MAJOR

Decimal

Major version number of the Java class, as defined in the JVM specification.

MINOR

Decimal

Minor version number of the Java class, as defined in the JVM specification.

KIND

String

Indicates whether the stored object is a Java class (CLASS) or a Java interface (INTERFACE).

ACCESSIBILITY

String

Accessibility of the Java class.

IS_INNER

String

Indicates whether this Java class is an inner class (YES) or not (NO).

IS_ABSTRACT

String

Indicates whether this Java class is an abstract class (YES) or not (NO).

IS_FINAL

String

Indicates whether this Java class is a final class (YES) or not (NO).

IS_DEBUG

String

Indicates whether this Java class contains debug information (YES) or not (NO).

SOURCE

String

Source designation of the Java class.

SUPER

String

Super class of this Java class.

OUTER

String

Outer class of this Java class if this Java class is an inner class.


Indexes

Table A-20 lists the column name, data type, and description of the Indexes Schema Collection.

Table A-20 Indexes

Column Name Data Type Description

OWNER

String

Owner of the index.

INDEX_NAME

String

Name of the index.

INDEX_TYPE

String

Type of the index:

  • NORMAL

  • BITMAP

  • FUNCTION-BASED NORMAL

  • FUNCTION-BASED BITMAP

  • DOMAIN

TABLE_OWNER

String

Owner of the indexed object.

TABLE_NAME

String

Name of the indexed object.

TABLE_TYPE

String

Type of the indexed object (for example, TABLE or CLUSTER).

UNIQUENESS

String

Indicates whether the index is UNIQUE or NONUNIQUE.

COMPRESSION

String

Indicates whether index compression is enabled (ENABLED) or not (DISABLED).

PREFIX_LENGTH

Decimal

Number of columns in the prefix of the compression key.

TABLESPACE_NAME

String

Name of the tablespace containing the index.

INI_TRANS

Decimal

Initial number of transactions.

MAX_TRANS

Decimal

Maximum number of transactions.

INITIAL_EXTENT

Decimal

Size of the initial extent.

NEXT_EXTENT

Decimal

Size of secondary extents.

MIN_EXTENTS

Decimal

Minimum number of extents allowed in the segment.

MAX_EXTENTS

Decimal

Maximum number of extents allowed in the segment.

PCT_INCREASE

Decimal

Percentage increase in extent size.

PCT_THRESHOLD

Decimal

Threshold percentage of block space allowed per index entry.

INCLUDE_COLUMN

Decimal

Column ID of the last column to be included in index-organized table primary key (non-overflow) index. This column maps to the COLUMN_ID column of the *_TAB_COLUMNS data dictionary views.

FREELISTS

Decimal

Number of process freelists allocated to this segment.

FREELIST_GROUPS

Decimal

Number of freelist groups allocated to this segment.

PCT_FREE

Decimal

Minimum percentage of free space in a block.

LOGGING

String

Logging information.

BLEVEL

Decimal

B*-Tree level: depth of the index from its root block to its leaf blocks. A depth of 0 indicates that the root block and leaf block are the same.

LEAF_BLOCKS

Decimal

Number of leaf blocks in the index.

DISTINCT_KEYS

Decimal

Number of distinct indexed values. For indexes that enforce UNIQUE and PRIMARY KEY constraints, this value is the same as the number of rows in the table (USER_TABLES.NUM_ROWS).

AVG_LEAF_BLOCKS_PER_KEY

Decimal

Average number of leaf blocks in which each distinct value in the index appears, rounded to the nearest integer. For indexes that enforce UNIQUE and PRIMARY KEY constraints, this value is always 1.

AVG_DATA_BLOCKS_PER_KEY

Decimal

Average number of data blocks in the table that are pointed to by a distinct value in the index, rounded to the nearest integer. This statistic is the average number of data blocks that contain rows that contain a given value for the indexed columns.

CLUSTERING_FACTOR

Decimal

Indicates the amount of order of the rows in the table based on the values of the index.

STATUS

String

Indicates whether a nonpartitioned index is VALID or UNUSABLE.

NUM_ROWS

Decimal

Number of rows in the index.

SAMPLE_SIZE

Decimal

Size of the sample used to analyze the index.

LAST_ANALYZED

Date

Date on which this index was most recently analyzed.

DEGREE

String

Number of threads per instance for scanning the index.

INSTANCES

String

Number of instances across which the indexes to be scanned.

PARTITIONED

String

Indicates whether the index is partitioned (YES) or not (NO).

TEMPORARY

String

Indicates whether or not the index is on a temporary table.

GENERATED

String

Indicates whether the name of the index is system generated (Y) or not (N).

SECONDARY

String

Indicates whether the index is a secondary object created by the ODCIIndexCreate method of the Oracle Data Cartridge (Y) or not (N).

BUFFER_POOL

String

Name of the default buffer pool to be used for the index blocks.

USER_STATS

String

Indicates whether statistics were entered directly by the user (YES) or not (NO).

DURATION

String

Indicates the duration of a temporary table.

PCT_DIRECT_ACCESS

Decimal

For a secondary index on an index-organized table, the percentage of rows with VALID guess.

ITYP_OWNER

String

For a domain index, the owner of the index type.

ITYP_NAME

String

For a domain index, the name of the index type.

PARAMETERS

String

For a domain index, the parameter string.

GLOBAL_STATS

String

For partitioned indexes, indicates whether statistics are collected by analyzing the index as a whole (YES) or estimated from statistics on underlying index partitions and subpartitions (NO).

DOMIDX_STATUS

String

Status of the domain index:

  • NULL - Index is not a domain index.

  • VALID - Index is a valid domain index.

  • IDXTYP_INVLD - Indextype of the domain index is invalid.

DOMIDX_OPSTATUS

String

Status of the operation on the domain index:

  • NULL - Index is not a domain index.

  • VALID - Operation performed without errors.

  • FAILED - Operation failed with an error.

FUNCIDX_STATUS

String

Status of a function-based index:

  • NULL - Index is not a function-based index.

  • ENABLED - Function-based index is enabled.

  • DISABLED - Function-based index is disabled.

JOIN_INDEX

String

Indicates whether the index is a join index (YES) or not (NO).

IOT_REDUNDANT_PKEY_ELIM

String

Indicates whether redundant primary key columns are eliminated from secondary indexes on index-organized tables (YES) or not (NO).

DROPPED

String

Indicates whether the index has been dropped and is in the recycle bin (YES) or not (NO); null for partitioned tables.


IndexColumns

Table A-21 lists the column name, data type, and description of the IndexColumns Schema Collection.

Table A-21 IndexColumns

Column Name Data Type Description

INDEX_OWNER

String

Owner of the index.

INDEX_NAME

String

Name of the index.

TABLE_OWNER

String

Owner of the table or cluster.

TABLE_NAME

String

Name of the table or cluster.

COLUMN_NAME

String

Column name or attribute of object type column.

COLUMN_POSITION

Decimal

Position of column or attribute within the index.

COLUMN_LENGTH

Decimal

Indexed length of the column.

DESCEND

String

Whether the column is sorted in descending order (Y/N).

CHAR_LENGTH

Decimal

Maximum codepoint length of the column.

(Oracle9i or later)


PrimaryKeys

Table A-22 lists the column name, data type, and description of the PrimaryKeys Schema Collection.

Table A-22 PrimaryKeys

Column Name Data Type Description

OWNER

String

Owner of the constraint definition.

CONSTRAINT_NAME

String

Name of the constraint definition.

TABLE_NAME

String

Name associated with the table (or view) with constraint definition.

SEARCH_CONDITION

String

Text of search condition for a check constraint.

R_OWNER

String

Owner of table referred to in a referential constraint.

R_CONSTRAINT_NAME

String

Name of the unique constraint definition for referenced table.

DELETE_RULE

String

Delete rule for a referential constraint (CASCADE or NO ACTION).

STATUS

String

Enforcement status of constraint (ENABLED or DISABLED).

DEFERRABLE

String

Whether or not the constraint is deferrable.

VALIDATED

String

Whether all data obeys the constraint (VALIDATED or NOT VALIDATED).

GENERATED

String

Whether the name of the constraint is user or system generated.

BAD

String

Indicates that this constraint specifies a century in an ambiguous manner. (Yes| No)

To avoid errors resulting from this ambiguity, rewrite the constraint using the TO_DATE function with a four-digit year.

RELY

String

Whether an enabled constraint is enforced or unenforced.

LAST_CHANGE

DateTime

When the constraint was last enabled or disabled.

INDEX_OWNER

String

Name of the user owning the index.

(Oracle9i or later)

INDEX_NAME

String

Name of the index (only shown for unique and primary-key constraints).

(Oracle9i or later)


ForeignKeys

Table A-23 lists the column name, data type, and description of the ForeignKeys Schema Collection.

Table A-23 ForeignKeys

Column Name Data Type Description

PRIMARY_KEY_CONSTRAINT_NAME

String

Name of the constraint definition.

PRIMARY_KEY_OWNER

String

Owner of the constraint definition.

PRIMARY_KEY_TABLE_NAME

String

Name associated with the table (or view) with constraint definition.

FOREIGN_KEY_OWNER

String

Owner of the constraint definition.

FOREIGN_KEY_CONSTRAINT_NAME

String

Name of the constraint definition.

FOREIGN_KEY_TABLE_NAME

String

Name associated with the table (or view) with constraint definition.

SEARCH_CONDITION

String

Text of search condition for a check constraint

R_OWNER

String

Owner of table referred to, in a referential constraint.

R_CONSTRAINT_NAME

String

Name of the unique constraint definition for referenced table.

DELETE_RULE

String

Delete rule for a referential constraint (CASCADE or NO ACTION).

STATUS

String

Enforcement status of constraint (ENABLED or DISABLED).

VALIDATED

String

Whether or not all data obeys the constraint (VALIDATED or NOT VALIDATED).

GENERATED

String

Whether the name of the constraint is user or system generated.

RELY

String

Whether an enabled constraint is enforced or unenforced.

LAST_CHANGE

DateTime

When the constraint was last enabled or disabled.

INDEX_OWNER

String

Name of the user owning the index.

(Oracle9i or later)

INDEX_NAME

String

Name of the index.

(Oracle9i or later)


ForeignKeyColumns

Table A-24 lists the column name, data type, and description of the ForeignKeyColumns Schema Collection.

Table A-24 ForeignKeyColumns

Column Name Data Type Description

OWNER

String

Owner of the constraint definition.

CONSTRAINT_NAME

String

Name of the constraint definition.

TABLE_NAME

String

Name of the table with constraint definition.

COLUMN_NAME

String

Name of the column or attribute of the object type column specified in the constraint definition.

POSITION

String

Original position of column or attribute in the definition of the object.


UniqueKeys

Table A-25 lists the column name, data type, and description of the UniqueKeys Schema Collection.

Table A-25 UniqueKeys

Column Name Data Type Description

OWNER

String

Owner of the constraint definition.

CONSTRAINT_NAME

String

Name of the constraint definition.

TABLE_NAME

String

Name associated with the table (or view) with constraint definition.

SEARCH_CONDITION

String

Text of search condition for a check constraint.

R_OWNER

String

Owner of table referred to in a referential constraint.

R_CONSTRAINT_NAME

String

Name of the unique constraint definition for referenced table.

DELETE_RULE

String

Delete rule for a referential constraint (CASCADE or NO ACTION).

STATUS

String

Enforcement status of constraint (ENABLED or DISABLED).

DEFERRABLE

String

Whether or not the constraint is deferrable.

VALIDATED

String

Whether all data obeys the constraint (VALIDATED or NOT VALIDATED).

GENERATED

String

Whether the name of the constraint is user or system generated.

BAD

String

Indicates that this constraint specifies a century in an ambiguous manner. (Yes| No)

To avoid errors resulting from this ambiguity, rewrite the constraint using the TO_DATE function with a four-digit year.

RELY

String

Whether an enabled constraint is enforced or not.

LAST_CHANGE

String

When the constraint was last enabled or disabled.

INDEX_OWNER

String

Name of the user owning the index.

(Oracle9i or later)

INDEX_NAME

String

Name of the index (only shown for unique and primary-key constraints).

(Oracle9i or later)