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Oracle® Transparent Gateway for Microsoft SQL Server Administrator's Guide
10g Release 2 (10.2) for Microsoft Windows (32-bit)
Part Number B14270-01
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C Data Dictionary

The Oracle Transparent Gateway for Microsoft SQL Server translates a query that refers to an Oracle database server data dictionary table into a query that retrieves the data from Microsoft SQL Server system tables. You perform queries on data dictionary tables over the database link in the same way you query data dictionary tables in the Oracle database server. The gateway data dictionary is similar to the Oracle database server data dictionary in appearance and use.

This appendix contains the following sections:

C.1 Data Dictionary Support

The following paragraphs describe the Oracle Transparent Gateway for Microsoft SQL Server data dictionary support.

C.1.1 Microsoft SQL Server System Tables

Microsoft SQL Server data dictionary information is stored in the Microsoft SQL Server database as Microsoft SQL Server system tables. All Microsoft SQL Server system tables have names prefixed with "sys". The Microsoft SQL Server system tables define the structure of a database. When you change data definitions, Microsoft SQL Server reads and modifies the Microsoft SQL Server system tables to add information about the user tables.

C.1.2 Accessing the Gateway Data Dictionary

Accessing a gateway data dictionary table or view is identical to accessing a data dictionary in an Oracle database. You issue a SQL SELECT statement specifying a database link. The Oracle database server data dictionary view and column names are used to access the gateway data dictionary in an Oracle database. Synonyms of supported views are also acceptable. For example, the following statement queries the data dictionary table ALL_CATALOG to retrieve all table names in the Microsoft SQL Server database:

SQL> SELECT * FROM "ALL_CATALOG"@MSQL;

When a data dictionary access query is issued, the gateway:

  1. Maps the requested table, view, or synonym to one or more Microsoft SQL Server system table names. The gateway translates all data dictionary column names to their corresponding Microsoft SQL Server column names within the query. If the mapping involves one Microsoft SQL Server system table, the gateway translates the requested table name to its corresponding Microsoft SQL Server system table name within the query. If the mapping involves multiple Microsoft SQL Server system tables, the gateway constructs a join in the query using the translated Microsoft SQL Server system table names.

  2. Sends the translated query to Microsoft SQL Server.

  3. Might convert the retrieved Microsoft SQL Server data to give it the appearance of the Oracle database server data dictionary table.

  4. Passes the data dictionary information from the translated Microsoft SQL Server system table to the Oracle database server.

    Note:

    The values returned when querying the gateway data dictionary might not be the same as the ones returned by the Oracle SQL*Plus DESCRIBE command.

C.1.3 Direct Queries to Microsoft SQL Server Tables

Queries issued directly to individual Microsoft SQL Server system tables are allowed but they return different results because the Microsoft SQL Server system table column names differ from those of the data dictionary view. Also, certain columns in an Microsoft SQL Server system table cannot be used in data dictionary processing.

C.1.4 Supported Views and Tables

The gateway supports the following views and tables:

Supported Views and Table Supported Views and Table
ALL_CATALOG ALL_COL_COMMENTS
ALL_CONS_COLUMNS ALL_CONSTRAINTS
ALL_IND_COLUMNS ALL_INDEXES
ALL_OBJECTS ALL_TAB_COLUMNS
ALL_TAB_COMMENTS ALL_TABLES
ALL_USERS ALL_VIEWS
DBA_CATALOG DBA_COL_COMMENTS
DBA_OBJECTS DBA_TAB_COLUMNS
DBA_TAB_COMMENTS DBA_TABLES
DICT_COLUMNS DICTIONARY
DUAL TABLE_PRIVILEGES
USER_CATALOG USER_COL_COMMENTS
USER_CONS_COLUMNS USER_CONSTRAINTS
USER_IND_COLUMNS USER_INDEXES
USER_OBJECTS USER_TAB_COLUMNS
USER_TAB_COMMENTS USER_TABLES
USER_USER USER_VIEWS

No other Oracle database server data dictionary tables or views are supported. If you use a view not on the list, you receive the Oracle database server error code for no more rows available.

Queries through the gateway of any data dictionary table or view beginning with ALL_ can returns rows from the Microsoft SQL Server database even when access privileges for those Microsoft SQL Server objects have not been granted. When querying an Oracle database with the Oracle data dictionary, rows are returned only for those objects you are permitted to access.

C.2 Data Dictionary Mapping

The tables in this section list Oracle data dictionary view names and the equivalent Microsoft SQL Server system tables used. A plus sign (+) indicates that a join operation is involved.

Table C-1 Oracle Data Dictionary View Names and Microsoft SQL Server Equivalents

View Name Microsoft SQL Server System Table Name
ALL_CATALOG sysusers + sysobjects
ALL_COL_COMMENTS sysusers+sysobjects+syscolumns
ALL_CONS_COLUMNS sp_pkeys + sp_fkeys
ALL_CONSTRAINTS sysusers + sysobjects + sysindexes + sysconstraints + sysreferences
ALL_IND_COLUMNS sysusers + sysindexes + syscolumns
ALL_INDEXES sysusers + sysindexes + sysobjects
ALL_OBJECTS sysusers + sysobjects + sysindexes
ALL_TAB_COLUMNS sysusers + sysobjects + syscolumns
ALL_TAB_COMMENTS sysusers + sysobjects
ALL_TABLES sysusers + sysobjects
ALL_USERS sysusers
ALL_VIEWS sysusers + sysobjects + syscomments
DBA_CATALOG sysusers + sysobjects
DBA_COL_COMMENTS sysusers + sysobjects + syscolumns
DBA_OBJECTS sysusers + sysobjects + sysindexes
DBA_TABLES sysusers + sysobjects
DBA_TAB_COLUMNS sysusers + sysobjects + syscolumns
DBA_TAB_COMMENTS sysusers + sysobjects
DICT_COLUMNS sysobjects + syscolumns
DICTIONARY sysobjects
DUAL sysusers
TABLE_PRIVILEGES sysprotects + sysusers + sysobjects
USER_CATALOG sysusers + sysobjects
USER_COL_COMMENTS sysusers + sysobjects + syscolumns
USER_CONS_COLUMNS sp_pkeys + sp_fkeys
USER_CONSTRAINTS sysusers + sysobjects + sysindexes + sysconstraints + sysreferences
USER_IND_COLUMNS sysusers + sysindexes + syscolumns
USER_INDEXES sysusers + sysindexes + sysobjects
USER_OBJECTS sysusers + sysobjects + sysindexes
USER_TAB_COLUMNS sysusers + sysobjects + syscolumns
USER_TAB_COMMENTS sysusers + sysobjects
USER_TABLES sysusers + sysobjects
USER_USERS sysusers
USER_VIEWS sysusers + sysobjects + syscomments

C.2.1 Default Column Values

There is a minor difference between the gateway data dictionary and a typical Oracle database server data dictionary. The Oracle database server columns that are missing in an Microsoft SQL Server system table are filled with zeros, spaces, null values, not-applicable values (N.A.), or default values, depending on the column type.

C.3 Gateway Data Dictionary Descriptions

The gateway data dictionary tables and views provide the following information:

They are described here with information retrieved by an Oracle SQL*Plus DESCRIBE command. The values in the Null? column might differ from the Oracle database server data dictionary tables and views. Any default value is shown to the right of an item, but this is not information returned by DESCRIBE.

Note:

The column width of some columns in the translated data dictionary tables would be different when the gateway connects to a Microsoft SQL Server Version 7.0 database.

Table C-2 ALL_CATALOG

Name Null? Type Value
OWNER - VARCHAR2(256) -
TABLE_NAME - VARCHAR2(256) -
TABLE_TYPE - VARCHAR2(5) "TABLE" or "VIEW"

Table C-3 ALL_COL_COMMENTS

Name Null? Type Value
OWNER - VARCHAR2(256) -
TABLE_NAME - VARCHAR2(256) -
COLUMN_NAME - VARCHAR2(256) -
COMMENTS - VARCHAR2(1) -

Table C-4 ALL_CONS_COLUMNS

Name Null? Type Value
OWNER NOT NULL VARCHAR2(30) -
CONSTRAINT_NAME - VARCHAR2(30) -
TABLE_NAME - VARCHAR2(30) -
COLUMN_NAME - VARCHAR2(8192) -
POSITION - FLOAT(49) -

Table C-5 ALL_CONSTRAINTS

Name Null? Type Value
OWNER - VARCHAR2(256) -
CONSTRAINT_NAME - VARCHAR2(256) -
CONSTRAINT_TYPE - VARCHAR2(1) "C" or "P" or "R" or "U"
TABLE_NAME - VARCHAR2(256) -
SEARCH_CONDITION - VARCHAR2(1) NULL
R_OWNER - VARCHAR2(256) -
R_CONSTRAINT_NAME - VARCHAR2(256) -
DELETE_RULE - VARCHAR2(1) NULL
STATUS - VARCHAR2(1) NULL
DEFERRABLE - VARCHAR2(1) NULL
DEFERRED - VARCHAR2(1) NULL
VALIDATED - VARCHAR2(1) NULL
GENERATED - VARCHAR2(1) NULL
BAD - VARCHAR2(1) NULL
RELY - VARCHAR2(1) NULL
LAST_CHANGE - DATE -

Table C-6 ALL_IND_COLUMNS

Name Null? Type Value
INDEX_OWNER NOT NULL VARCHAR2(30) -
INDEX_NAME NOT NULL VARCHAR2(30) -
TABLE_OWNER NOT NULL VARCHAR2(30) -
TABLE_NAME NOT NULL VARCHAR2(30) -
COLUMN_NAME - VARCHAR2(8192) -
COLUMN_POSITION NOT NULL FLOAT(49) -
COLUMN_LENGTH NOT NULL FLOAT(49) -
DESCEND - VARCHAR2(4) -

Table C-7 ALL_INDEXES

Name Null? Type Value
OWNER - VARCHAR2(256) -
INDEX_NAME - VARCHAR2(256) -
INDEX_TYPE - VARCHAR2(1) NULL
TABLE_OWNER - VARCHAR2(256) -
TABLE_NAME - VARCHAR2(256) -
TABLE_TYPE - VARCHAR(7) "TABLE" or "CLUSTER"
UNIQUENESS - VARCHAR2(1) NULL
COMPRESSION - VARCHAR2(1) NULL
PREFIX_LENGTH - NUMBER 0
TABLESPACE_NAME - VARCHAR2(1) NULL
INI_TRANS - NUMBER 0
MAX_TRANS - NUMBER 0
INITIAL_EXTENT - NUMBER 0
NEXT_EXTENT - NUMBER 0
MIN_EXTENTS - NUMBER 0
MAX_EXTENTS - NUMBER 0
PCT_INCREASE - NUMBER 0
PCT_THRESHOLD - NUMBER 0
INCLUDE_COLUMN - NUMBER 0
FREELISTS - NUMBER 0
FREELIST_GROUPS - NUMBER 0
PCT_FREE - NUMBER 0
LOGGING - VARCHAR2(1) NULL
BLEVEL - NUMBER 0
LEAF_BLOCKS - NUMBER 0
DISTINCT_KEYS - NUMBER 0
AVG_LEAF_BLOCKS_PER_KEY - NUMBER 0
AVG_DATA_BLOCKS_PER_KEY - NUMBER 0
CLUSTERING_FACTOR - NUMBER 0
STATUS - VARCHAR2(1) NULL
NUM_ROWS - NUMBER 0
SAMPLE_SIZE - NUMBER 0
LAST_ANALYZED - DATE NULL
DEGREE - VARCHAR2(1) NULL
INSTANCES - VARCHAR2(1) NULL
PARTITIONED - VARCHAR2(1) NULL
TEMPORARY - VARCHAR2(1) NULL
GENERATED - VARCHAR2(1) NULL
SECONDARY - VARCHAR2(1) NULL
BUFFER_POOL - VARCHAR2(1) NULL
USER_STATS - VARCHAR2(1) NULL
DURATION - VARCHAR2(1) NULL
PCT_DIRECT_ACCESS - NUMBER 0
ITYP_OWNER - VARCHAR2(1) NULL
ITYP_NAME - VARCHAR2(1) NULL
PARAMETERS - VARCHAR2(1) NULL
GLOBAL_STATS - VARCHAR2(1) NULL
DOMIDX_STATUS - VARCHAR2(1) NULL
DOMIDX_OPSTATUS - VARCHAR2(1) NULL
FUNCIDX_STATUS - VARCHAR2(1) NULL

Table C-8 ALL_OBJECTS

Name Null? Type Value
OWNER - VARCHAR2(256) -
OBJECT_NAME - VARCHAR2(256) -
SUBOBJECT_NAME - VARCHAR2(1) NULL
OBJECT_ID - NUMBER -
DATA_OBJECT_ID - NUMBER 0
OBJECT_TYPE - VARCHAR2(9) "TABLE" or "VIEW" or "INDEX" or "PROCEDURE"
CREATED - DATE -
LAST_DDL_TIME - DATE -
TIMESTAMP - VARCHAR2(1) NULL
STATUS - VARCHAR2(5) "VALID"
TEMPORARY - VARCHAR2(1) NULL
GENERATED - VARCHAR2(1) NULL
SECONDARY - VARCHAR2(1) NULL

Table C-9 ALL_TAB_COLUMNS

Name Null? Type Value
OWNER - VARCHAR2(256) -
TABLE_NAME - VARCHAR2(256) -
COLUMN_NAME - VARCHAR2(256) -
DATA_TYPE - VARCHAR2(8) -
DATA_TYPE_MOD - VARCHAR2(1) NULL
DATA_TYPE_OWNER - VARCHAR2(1) NULL
DATA_LENGTH - NUMBER -
DATA_PRECISION - NUMBER -
DATA_SCALE - NUMBER -
NULLABLE - VARCHAR2(1) "Y" or "N"
COLUMN_ID - NUMBER -
DEFAULT_LENGTH - NUMBER 0
DATA_DEFAULT - VARCHAR2(1) NULL
NUM_DISTINCT - NUMBER 0
LOW_VALUE - NUMBER 0
HIGH_VALUE - NUMBER 0
DENSITY - NUMBER 0
NUM_NULLS - NUMBER 0
NUM_BUCKETS - NUMBER 0
LAST_ANALYZED - DATE NULL
SAMPLE_SIZE - NUMBER 0
CHARACTER_SET_NAME - VARCHAR2(1) NULL
CHAR_COL_DEC_LENGTH - NUMBER 0
GLOBAL_STATS - VARCHAR2(1) NULL
USER_STATS - VARCHAR2(1) NULL
AVG_COL_LEN - NUMBER 0

Table C-10 ALL_TAB_COMMENTS

Name Null? Type Value
OWNER - VARCHAR2(256) -
TABLE_NAME - VARCHAR2(256) -
TABLE_TYPE - VARCHAR2(5) "TABLE" or "VIEW"
COMMENTS - VARCHAR2(1) NULL

Table C-11 ALL_TABLES

Name Null? Type Value
OWNER - VARCHAR2(256) -
TABLE_NAME - VARCHAR2(256) -
TABLESPACE_NAME - VARCHAR2(1) NULL
CLUSTER_NAME - VARCHAR2(1) NULL
IOT_NAME - VARCHAR2(1) NULL
PCT_FREE - NUMBER 0
PCT_USED - NUMBER 0
INI_TRANS - NUMBER 0
MAX_TRANS - NUMBER 0
INITIAL_EXTENT - NUMBER 0
NEXT_EXTENT - NUMBER 0
MIN_EXTENTS - NUMBER 0
MAX_EXTENTS - NUMBER 0
PCT_INCREASE - NUMBER 0
FREELISTS - NUMBER 0
FREELIST_GROUPS - NUMBER 0
LOGGING - VARCHAR2(1) NULL
BACKED_UP - VARCHAR2(1) NULL
NUM_ROWS - NUMBER 0
BLOCKS - NUMBER 0
EMPTY_BLOCKS - NUMBER 0
AVG_SPACE - NUMBER 0
CHAIN_CNT - NUMBER 0
AVG_ROW_LEN - NUMBER 0
AVG_SPACE_FREELIST_BLOCKS - NUMBER 0
NUM_FREELIST_BLOCKS - NUMBER 0
DEGREE - VARCHAR2(1) NULL
INSTANCES - VARCHAR2(1) NULL
CACHE - VARCHAR2(1) NULL
TABLE_LOCK - VARCHAR2(1) NULL
SAMPLE_SIZE - NUMBER 0
LAST_ANALYZED - DATE NULL
PARTITIONED - VARCHAR2(1) NULL
IOT_TYPE - VARCHAR2(1) NULL
TEMPORARY - VARHCAR2(1) NULL
SECONDARY - VARCHAR2(1) NULL
NESTED - VARCHAR2(1) NULL
BUFFER_POOL - VARCHAR2(1) NULL
ROW_MOVEMENT - VARCHAR2(1) NULL
GLOBAL_STATS - VARCHAR2(1) NULL
USER_STATS - VARCHAR2(1) NULL
DURATION - VARHCAR2(1) NULL
SKIP_CORRUPT - VARCHAR2(1) NULL
MONITORING - VARCHAR2(1) NULL

Table C-12 ALL_USERS

Name Null? Type Value
USERNAME - VARCHAR2(256) -
USER_ID NOT NULL NUMBER(5) -
CREATED NOT NULL DATE -

Table C-13 ALL_VIEWS

Name Null? Type Value
OWNER - VARCHAR2(256) -
VIEW_NAME - VARCHAR2(256) -
TEXT_LENGTH - NUMBER 0
TEXT - VARCHAR2(256) -
TYPE_TEXT_LENGTH - NUMBER 0
TYPE_TEXT - VARCHAR2(1) -
OID_TEXT_LENGTH - NUMBER 0
OID_TEXT - VARCHAR2(1) -
VIEW_TYPE_OWNER - VARCHAR2(1) -
VIEW_TYPE - VARCHAR2(1) -

Table C-14 DBA_CATALOG

Name Null? Type Value
OWNER - VARCHAR2(256) -
TABLE_NAME - VARCHAR2(256) -
TABLE_TYPE - VARCHAR2(5) "TABLE" or "VIEW"

Table C-15 DBA_COL_COMMENTS

Name Null? Type Value
OWNER - VARCHAR2(256) -
TABLE_NAME - VARCHAR2(256) -
COLUMN_NAME - VARCHAR2(256) -
COMMENTS - VARCHAR2(1) NULL

Table C-16 DBA_OBJECTS

Name Null? Type Value
OWNER - VARCHAR2(256) -
OBJECT_NAME - VARCHAR2(256) -
SUBOBJECT_NAME - VARCHAR2(1) NULL
OBJECT_ID - NUMBER -
DATA_OBJECT_ID - NUMBER 0
OBJECT_TYPE - VARCHAR2(9) "TABLE" or "VIEW" or "INDEX" or "PROCEDURE"
CREATED - DATE -
LAST_DDL_TIME - DATE -
TIMESTAMP - VARCHAR2(1) NULL
STATUS - VARCHAR2(5) NULL
TEMPORARY - VARCHAR2(1) NULL
GENERATED - VARCHAR2(1) NULL
SECONDARY - VARCHAR2(1) NULL

Table C-17 DBA_TAB_COLUMNS

Name Null? Type Value
OWNER - VARCHAR2(256) -
TABLE_NAME - VARCHAR2(256) -
COLUMN_NAME - VARCHAR2(256) -
DATA_TYPE - VARCHAR2(8) -
DATA_TYPE_MOD - VARCHAR2(1) NULL
DATA_TYPE_OWNER - VARCHAR2(1) NULL
DATA_LENGTH - NUMBER -
DATA_PRECISION - NUMBER -
DATA_SCALE - NUMBER -
NULLABLE - VARCHAR2(1) "Y" or "N"
COLUMN_ID - NUMBER -
DEFAULT_LENGTH - NUMBER 0
DATA_DEFAULT - VARCHAR2(1) NULL
NUM_DISTINCT - NUMBER 0
LOW_VALUE - NUMBER 0
HIGH_VALUE - NUMBER 0
DENSITY - NUMBER 0
NUM_NULLS - NUMBER 0
NUM_BUCKETS - NUMBER 0
LAST_ANALYZED - DATE NULL
SAMPLE_SIZE - NUMBER 0
CHARACTER_SET_NAME - VARCHAR2(1) NULL
CHAR_COL_DEC_LENGTH - NUMBER 0
GLOBAL_STATS - VARCHAR2(1) NULL
USER_STATS - VARCHAR2(1) NULL
AVG_COL_LEN - NUMBER 0

Table C-18 DBA_TAB_COMMENTS

Name Null? Type Value
OWNER - VARCHAR2(256) -
TABLE_NAME - VARCHAR2(256) -
TABLE_TYPE - VARCHAR2(5) "TABLE" or "VIEW"
COMMENTS - VARCHAR2(1) NULL

Table C-19 DBA_TABLES

Name Null? Type Value
OWNER - VARCHAR2(256) -
TABLE_NAME - VARCHAR2(256) -
TABLESPACE_NAME - VARCHAR2(1) NULL
CLUSTER_NAME - VARCHAR2(1) NULL
IOT_NAME - VARCHAR2(1) NULL
PCT_FREE - NUMBER 0
PCT_USED - NUMBER 0
INI_TRANS - NUMBER 0
MAX_TRANS - NUMBER 0
INITIAL_EXTENT - NUMBER 0
NEXT_EXTENT - NUMBER 0
MIN_EXTENTS - NUMBER 0
MAX_EXTENTS - NUMBER 0
PCT_INCREASE - NUMBER 0
FREELISTS - NUMBER 0
FREELIST_GROUPS - NUMBER 0
LOGGING - VARCHAR2(1) NULL
BACKED_UP - VARCHAR2(1) NULL
NUM_ROWS - NUMBER 0
BLOCKS - NUMBER 0
EMPTY_BLOCKS - NUMBER 0
AVG_SPACE - NUMBER 0
CHAIN_CNT - NUMBER 0
AVG_ROW_LEN - NUMBER 0
AVG_SPACE_FREELIST_BLOCKS - NUMBER 0
NUM_FREELIST_BLOCKS - NUMBER 0
DEGREE - VARCHAR2(1) NULL
INSTANCES - VARCHAR2(1) NULL
CACHE - VARCHAR2(1) NULL
TABLE_LOCK - VARCHAR2(1) NULL
SAMPLE_SIZE - NUMBER 0
LAST_ANALYZED - DATE NULL
PARTITIONED - VARCHAR2(1) NULL
IOT_TYPE - VARCHAR2(1) NULL
TEMPORARY - VARHCAR2(1) NULL
SECONDARY - VARCHAR2(1) NULL
NESTED - VARCHAR2(1) NULL
BUFFER_POOL - VARCHAR2(1) NULL
ROW_MOVEMENT - VARCHAR2(1) NULL
GLOBAL_STATS - VARCHAR2(1) NULL
USER_STATS - VARCHAR2(1) NULL
DURATION - VARHCAR2(1) NULL
SKIP_CORRUPT - VARCHAR2(1) NULL
MONITORING - VARCHAR2(1) NULL

Table C-20 DICT_COLUMNS

Name Null? Type Value
TABLE_NAME - VARCHAR2(256) -
COLUMN_NAME - VARCHAR2(256) -
COMMENTS - VARCHAR2(1) NULL

Table C-21 DICTIONARY

Name Null? Type Value
TABLE_NAME - VARCHAR2(256) -
COMMENTS - VARCHAR2(1) -

Table C-22 DUAL

Name Null? Type Value
DUMMY NOT NULL VARCHAR2(1) "X"

Table C-23 TABLE_PRIVILEGES

Name Null? Type Value
GRANTEE - VARCHAR2(256) -
OWNER - VARCHAR2(256) -
TABLE_NAME - VARCHAR2(256) -
GRANTOR - VARCHAR2(256) -
SELECT_PRIV - VARCHAR2(1) "Y"
INSERT_PRIV - VARCHAR2(1) "A"
DELETE_PRIV - VARCHAR2(1) "Y"
UPDATE_PRIV - VARCHAR2(1) "A"
REFERENCES_PRIV - VARCHAR2(1) "A"
ALTER_PRIV - VARCHAR2(1) "Y"
INDEX_PRIV - VARCHAR2(1) "Y"
CREATED NOT NULL DATE -

Table C-24 USER_CATALOG

Name Null? Type Value
TABLE_NAME - VARCHAR2(256) -
TABLE_TYPE - VARCHAR2(5) "TABLE" or "VIEW"

Table C-25 USER_COL_COMMENTS

Name Null? Type Value
TABLE_NAME - VARCHAR2(256) -
COLUMN_NAME - VARCHAR2(256) -
COMMENTS - VARCHAR2(1) NULL

Table C-26 USER_CONS_COLUMNS

Name Null? Type Value
OWNER NOT NULL VARCHAR2(30) -
CONSTRAINT_NAME NOT NULL VARCHAR2(30) -
TABLE_NAME NOT NULL VARCHAR2(30) -
COLUMN_NAME - VARCHAR2(8192) -
POSITION - FLOAT(49) -

Table C-27 USER_CONSTRAINTS

Name Null? Type Value
OWNER - VARCHAR2(256) -
CONSTRAINT_NAME - VARCHAR2(256) -
CONSTRAINT_TYPE - VARCHAR2(1) "R" or "P" or "U" or "C"
TABLE_NAME - VARCHAR2(256) -
SEARCH_CONDITION - VARCHAR2(1) NULL
R_OWNER - VARCHAR2(256) -
R_CONSTRAINT_NAME - VARCHAR2(256) -
DELETE_RULE - VARCHAR2(1) NULL
STATUS - VARCHAR2(1) NULL
DEFERRABLE - VARCHAR2(1) NULL
DEFERRED - VARCHAR2(1) NULL
VALIDATED - VARCHAR2(1) NULL
GENERATED - VARCHAR2(1) NULL
BAD - VARCHAR2(1) NULL
RELY - VARCHAR2(1) NULL
LAST_CHANGE - DATE -

Table C-28 USER_IND_COLUMNS

Name Null? Type Value
INDEX_NAME NOT NULL VARCHAR2(30) -
TABLE_NAME NOT NULL VARCHAR2(30) -
COLUMN_NAME - VARCHAR2(8192) -
COLUMN_POSITION NOT NULL FLOAT(49) -
COLUMN_LENGTH NOT NULL FLOAT(49) -
DESCEND - VARCHAR2(4) -

Table C-29 USER_INDEXES

Name Null? Type Value
INDEX_NAME - VARCHAR2(256) -
INDEX_TYPE - VARCHAR2(1) NULL
TABLE_OWNER - VARCHAR2(256) -
TABLE_NAME - VARCHAR2(256) -
TABLE_TYPE - VARCHAR2(7) "TABLE" or "CLUSTER"
UNIQUENESS - VARCHAR2(1) NULL
COMPRESSION - VARCHAR2(1) NULL
PREFIX_LENGTH - NUMBER 0
TABLESPACE_NAME - VARCHAR2(1) NULL
INI_TRANS - NUMBER 0
MAX_TRANS - NUMBER 0
INITIAL_EXTENT - NUMBER 0
NEXT_EXTENT - NUMBER 0
MIN_EXTENTS - NUMBER 0
MAX_EXTENTS - NUMBER 0
PCT_INCREASE - NUMBER 0
PCT_THRESHOLD - NUMBER 0
INCLUDE_COLUMN - NUMBER 0
FREELISTS - NUMBER 0
FREELIST_GROUPS - NUMBER 0
PCT_FREE - NUMBER 0
LOGGING - VARCHAR2(1) NULL
BLEVEL - NUMBER 0
LEAF_BLOCKS - NUMBER 0
DISTINCT_KEYS - NUMBER 0
AVG_LEAF_BLOCKS_PER_KEY - NUMBER 0
AVG_DATA_BLOCKS_PER_KEY - NUMBER 0
CLUSTERING_FACTOR - NUMBER 0
STATUS - VARCHAR2(1) NULL
NUM_ROWS - NUMBER 0
SAMPLE_SIZE - NUMBER 0
LAST_ANALYZED - DATE NULL
DEGREE - VARCHAR2(1) NULL
INSTANCES - VARCHAR2(1) NULL
PARTITIONED - VARCHAR2(1) NULL
TEMPORARY - VARCHAR2(1) NULL
GENERATED - VARCHAR2(1) NULL
SECONDARY - VARCHAR2(1) NULL
BUFFER_POOL - VARCHAR2(1) NULL
USER_STATS - VARCHAR2(1) NULL
DURATION - VARHCAR2(1) NULL
PCT_DIRECT_ACCESS - NUMBER 0
ITYP_OWNER - VARCHAR2(1) NULL
ITYP_NAME - VARCHAR2(1) NULL
PARAMETERS - VARCHAR2(1) NULL
GLOBAL_STATS - VARCHAR2(1) NULL
DOMIDX_STATUS - VARCHAR2(1) NULL
DOMIDX_OPSTATUS - VARCHAR2(1) NULL
FUNCIDX_STATUS - VARCHAR2(1) NULL

Table C-30 USER_OBJECTS

Name Null? Type Value
OBJECT_NAME - VARCHAR2(256) -
SUBOBJECT_NAME - VARCHAR2(1) NULL
OBJECT_ID - NUMBER -
DATA_OBJECT_ID - NUMBER 0
OBJECT_TYPE - VARCHAR2(9) "TABLE" or "VIEW" or "INDEX" or "PROCEDURE"
CREATED - DATE -
LAST_DDL_TIME - DATE -
TIMESTAMP - VARCHAR2(1) NULL
STATUS - VARCHAR2(5) "VALID"
TEMPORARY - VARCHAR2(1) NULL
GENERATED - VARCHAR2(1) NULL
SECONDARY - VARCHAR2(1) NULL

Table C-31 USER_TAB_COLUMNS

Name Null? Type Value
TABLE_NAME - VARCHAR2(256) -
COLUMN_NAME - VARCHAR2(256) -
DATA_TYPE - VARCHAR2(8) -
DATA_TYPE_MOD - VARCHAR2(1) NULL
DATA_TYPE_OWNER - VARCHAR2(1) NULL
DATA_LENGTH - NUMBER -
DATA_PRECISION - NUMBER -
DATA_SCALE - NUMBER -
NULLABLE - VARCHAR2(1) "Y" or "N"
COLUMN_ID - NUMBER -
DEFAULT_LENGTH - NUMBER 0
DATA_DEFAULT - VARCHAR2(1) NULL
NUM_DISTINCT - NUMBER 0
LOW_VALUE - NUMBER 0
HIGH_VALUE - NUMBER 0
DENSITY - NUMBER 0
NUM_NULLS - NUMBER 0
NUM_BUCKETS - NUMBER 0
LAST_ANALYZED - DATE NULL
SAMPLE_SIZE - NUMBER 0
CHARACTER_SET_NAME - VARCHAR2(1) NULL
CHAR_COL_DECL_LENGTH - NUMBER 0
GLOBAL_STATS - VARCHAR2(1) NULL
USER_STATS - VARCHAR2(1) NULL
AVG_COL_LEN - NUMBER 0

Table C-32 USER_TAB_COMMENTS

Name Null? Type Value
TABLE_NAME - VARCHAR2(256) -
TABLE_TYPE - VARCHAR2(5) "TABLE" or "VIEW"
COMMENTS - VARCHAR2(1) NULL

Table C-33 USER_TABLES

Name Null? Type Value
TABLE_NAME - VARCHAR2(256) -
TABLESPACE_NAME - VARCHAR2(1) NULL
CLUSTER_NAME - VARCHAR2(1) NULL
IOT_NAME - VARCHAR2(1) NULL
PCT_FREE - NUMBER 0
PCT_USED - NUMBER 0
INI_TRANS - NUMBER 0
MAX_TRANS - NUMBER 0
INITIAL_EXTENT - NUMBER 0
NEXT_EXTENT - NUMBER 0
MIN_EXTENTS - NUMBER 0
MAX_EXTENTS - NUMBER 0
PCT_INCREASE - NUMBER 0
FREELISTS - NUMBER 0
FREELIST_GROUPS - NUMBER 0
LOGGING - VARCHAR2(1) NULL
BACKED_UP - VARCHAR2(1) NULL
NUM_ROWS - NUMBER 0
BLOCKS - NUMBER 0
EMPTY_BLOCKS - NUMBER 0
AVG_SPACE - NUMBER 0
CHAIN_CNT - NUMBER 0
AVG_ROW_LEN - NUMBER 0
AVG_SPACE_FREELIST_BLOCKS - NUMBER 0
NUM_FREELIST_BLOCKS - NUMBER 0
DEGREE - VARCHAR2(1) NULL
INSTANCES - VARCHAR2(1) NULL
CACHE - VARCHAR2(1) NULL
TABLE_LOCK - VARCHAR2(1) NULL
SAMPLE_SIZE - NUMBER 0
LAST_ANALYZED - DATE NULL
PARTITIONED - VARCHAR2(1) NULL
IOT_TYPE - VARCHAR2(1) NULL
TEMPORARY - VARHCAR2(1) NULL
SECONDARY - VARCHAR2(1) NULL
NESTED - VARCHAR2(1) NULL
BUFFER_POOL - VARCHAR2(1) NULL
ROW_MOVEMENT - VARCHAR2(1) NULL
GLOBAL_STATS - VARCHAR2(1) NULL
USER_STATS - VARCHAR2(1) NULL
DURATION - VARCHAR2(1) NULL
SKIP_CORRUPT - VARCHAR2(1) NULL
MONITORING - VARCHAR2(1) NULL

Table C-34 USER_USERS

Name Null? Type Value
USERNAME - VARCHAR2(256) -
USER_ID NOT NULL NUMBER(5) -
ACCOUNT_STATUS - VARCHAR2(4) "OPEN"
LOCK_DATE - DATE NULL
EXPIRY_DATE - DATE NULL
DEFAULT_TABLESPACE - VARCHAR2(1) NULL
TEMPORARY_TABLESPACE - VARCHAR2(1) NULL
CREATED NOT NULL DATE -
INITIAL_RSRC_CONSUMER_GROUP - VARCHAR2(1) NULL
EXTERNAL_NAME - VARCHAR2(1) NULL

Table C-35 USER_VIEWS

Name Null? Type Value
VIEW_NAME - VARCHAR2(256) -
TEXT_LENGTH - NUMBER 0
TEXT - VARCHAR2(256) -
TYPE_TEXT_LENGTH - NUMBER 0
TYPE_TEXT - VARCHAR2(1) NULL
OID_TEXT_LENGTH - NUMBER 0
OID_TEXT - VARCHAR2(1) NULL
VIEW_TYPE_OWNER - VARCHAR2(1) NULL
VIEW_TYPE - VARCHAR2(1) NULL

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