DBA_VIEWS DBA_SEQUENCES

Transcription

1 Findexesontosabb táblák, nézetek DBA_OBJECTS/ALL_OBJECT OWNER (char) OBJECT_NAME (char) OBJECT_ID (number) OBJECT_TYPE (char) TABLE/INDEX/TRIGGER/VIEW CREATED létrehozva (dátum) LAST_DDL_TIME módosítva DDL utasítással (dátum) DBA_TAB_COLUMNS/ALL_TAB_COLUMNS OWNER TABLE_NAME COLUMN_NAME DATA_TYPE COLUMN_ID DBA_SYNONYMS create synonym orszagok for nikovits.vilag_orszagai; DBA_VIEWS Column Datatype Description OWNER NOT VIEW_NAME NOT Owner of the view Name of the view TEXT_LENGTH NUMBER Length of the view text TEXT LONG View text TYPE_TEXT_LENGT H NUMBER Length of the type clause of the typed view TYPE_TEXT VARCHAR2(4000 ) Type clause of the typed view OID_TEXT_LENGTH NUMBER Length of the WITH OID clause of the typed view OID_TEXT VARCHAR2(4000 ) WITH OID clause of the typed view VIEW_TYPE_OWNE R Owner of the type of the view if the view is a typed view VIEW_TYPE Type of the view if the view is a typed view SUPERVIEW_NAME Name of the superview DBA_SEQUENCES Column Datatype Description SEQUENCE_OW NER NOT Name of the owner of the sequence SEQUENCE_NA ME NOT Sequence name MIN_VALUE NUMBER Minimum value of the sequence MAX_VALUE NUMBER Maximum value of the sequence INCREMENT_BY NUMBER NOT Value by which sequence is incremented CYCLE_FLAG VARCHAR2(1) Does sequence wrap around on reaching limit ORDER_FLAG VARCHAR2(1) Are sequence numbers generated in order

2 CACHE_SIZE NUMBER NOT LAST_NUMBER NUMBER NOT Number of sequence numbers to cache 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. DBA_DB_LINKS Column Datatype Description OWNER NOT Owner of the database link DB_LINK VARCHAR2(128) NOT Name of the database link USERNAME Name of the user when logging in HOST VARCHAR2(200 Oracle Net connect string CREATED DATE NOT Creation time of the database link DBA_TABLES Column Datatype Description OWNER NOT Owner of the table TABLE_NAME NOT Name of the table TABLESPACE_NAME Name of the tablespace containing the table; null for partitioned, temporary, and indexorganized tables CLUSTER_NAME Name of the cluster, if any, to which the table belongs IOT_NAME Name of the index-organized table, if any, to which the overflow or mapping table entry belongs. If the IOT_TYPEcolumn is not null, then this column contains the base table name. STATUS VARCHAR2(8) If a previous DROP TABLE operation failed, indicates whether the table is unusable (UNUSABLE) or valid (VALID) PCT_FREE NUMBER Minimum percentage of free space in a block; null for partitioned tables PCT_USED NUMBER Minimum percentage of used space in a block; null for partitioned tables INI_TRANS NUMBER Initial number of transactions; null for partitioned tables MAX_TRANS NUMBER Maximum number of transactions; null for partitioned tables INITIAL_EXTENT NUMBER Size of the initial extent (in bytes); null for partitioned tables NEXT_EXTENT NUMBER Size of secondary extents (in bytes); null for partitioned tables

3 MIN_EXTENTS NUMBER Minimum number of extents allowed in the segment; null for partitioned tables MAX_EXTENTS NUMBER Maximum number of extents allowed in the segment; null for partitioned tables PCT_INCREASE NUMBER Percentage increase in extent size; null for partitioned tables FREELISTS NUMBER Number of process freelists allocated to the segment; null for partitioned tables FREELIST_GROUPS NUMBER Number of freelist groups allocated to the segment; null for partitioned tables LOGGING ) Logging attribute; for partitioned tables BACKED_UP VARCHAR2(1) Has table been backed up since last change NUM_ROWS* NUMBER Number of rows in the table BLOCKS* NUMBER Number of used data blocks in the table EMPTY_BLOCKS* NUMBER Number of empty (never used) data blocks in the table AVG_SPACE* NUMBER Average amount of free space, in bytes, in a data block allocated to the table CHAIN_CNT* NUMBER Number of rows in the table that are chained from one data block to another, or which have migrated to a new block, requiring a link to preserve the old ROWID AVG_ROW_LEN* NUMBER Average length of a row in the table (in bytes) AVG_SPACE_FREELIS T _BLOCKS NUM_FREELIST_BLOC KS NUMBER Average freespace of all blocks on a freelist NUMBER Number of blocks on the freelist DEGREE INSTANCES VARCHAR2(1 VARCHAR2(1 Number of threads per instance for scanning the table Number of instances across which the table is to be scanned CACHE VARCHAR2(5) Indicates whether the table is to be cached in the buffer cache (Y) or not (N) TABLE_LOCK VARCHAR2(8) Indicates whether table locking is enabled (ENABLED) or disabled (DISABLED) SAMPLE_SIZE NUMBER Sample size used in analyzing this table LAST_ANALYZED DATE Date on which this table was most recently analyzed PARTITIONED ) Indicates whether this table is partitioned. Set to YES if it is partitioned. IOT_TYPE VARCHAR2(1 2) If this is an index-organized table, then IOT_TYPE is IOT,IOT_OVERFLOW, or IOT_MAPPING. If this is not an index-organized table, then IOT_TYPE is. TEMPORARY VARCHAR2(1) Can the current session only see data that it place in this object itself? SECONDARY VARCHAR2(1) Whether the trigger is a secondary object created by theodciindexcreate method of the Oracle Data Cartridge (Y N) NESTED ) Indicates whether the table is a nested table

4 (YES) or not (NO) BUFFER_POOL VARCHAR2(7) The default buffer pool for the object. for partitioned tables ROW_MOVEMENT VARCHAR2(8) Whether partitioned row movement is enabled or disabled GLOBAL_STATS ) For partitioned tables, indicates whether statistics were collected for the table as a whole (YES) or were estimated from statistics on underlying partitions and subpartitions (NO) USER_STATS ) Indicates whether statistics were entered directly by the user (YES) or not (NO) DURATION VARCHAR2(1 5) Indicates the duration of a temporary table: SYS$SESSION: the rows are preserved for the duration of the session SYS$TRANSACTION: the rows are deleted after COMMIT Null for a permanent table SKIP_CORRUPT VARCHAR2(8) Whether the Oracle Database ignores blocks marked corrupt during table and index scans (ENABLED) or raises an error (DISABLED). To enable this feature, run thedbms_repair.skip_corrupt_blocks procedure. MONITORING ) Whether the table has the MONITORING attribute set CLUSTER_OWNER Owner of the cluster, if any, to which the table belongs DEPENDENCIES VARCHAR2(8) Indicates whether row-level dependency tracking is enabled (ENABLED) or disabled (DISABLED) COMPRESSION VARCHAR2(8) Indicates whether table compression is enabled (ENABLED) or not (DISABLED); null for partitioned tables DROPPED ) Indicates whether the table has been dropped and is in the recycle bin (YES) or not (NO); null for partitioned tables DBA_DATA_FILES Column Datatype Description FILE_NAME VARCHAR2(51 3) Name of the database file FILE_ID NUMBER NOT File identifier number of the database file TABLESPACE_NA ME NOT Name of the tablespace to which the file belongs BYTES NUMBER Size of the file in bytes BLOCKS NUMBER NOT Size of the file in Oracle blocks STATUS VARCHAR2(9) File status: AVAILABLE or INVALID (INVALID means that the file number is not in use, for example, a file in a tablespace that was dropped)

5 RELATIVE_FNO NUMBER Relative file number AUTOEXTENSIBL E ) Autoextensible indicator MAXBYTES NUMBER Maximum file size in bytes MAXBLOCKS NUMBER Maximum file size in blocks INCREMENT_BY NUMBER Number of tablespace blocks used as autoextension increment. Block size is contained in the BLOCK_SIZE column of the DBA_TABLESPACES view. USER_BYTES NUMBER The size of the file available for user data. The actual size of the file minus the USER_BYTES value is used to store file related metadata. USER_BLOCKS NUMBER Number of blocks which can be used by the data ONLINE_STATUS VARCHAR2(7) Online status of the file: SYSOFF SYSTEM OFFLINE ONLINE RECOVER DBA_TEMP_FILES Column Datatype Description FILE_NAME VARCHAR2(513) Name of the database temp file FILE_ID NUMBER File identifier number of the database temp file TABLESPACE_NAME NOT Name of the tablespace to which the file belongs BYTES NUMBER Size of the file (in bytes) BLOCKS NUMBER Size of the file (in Oracle blocks) STATUS CHAR(9) File status: AVAILABLE RELATIVE_FNO NUMBER Tablespace-relative file number AUTOEXTENSIBLE ) Indicates whether the file is autoextensible (YES) or not (NO) MAXBYTES NUMBER maximum size of the file (in bytes) MAXBLOCKS NUMBER Maximum size of the file (in Oracle blocks) INCREMENT_BY NUMBER Default increment for autoextension USER_BYTES NUMBER Size of the useful portion of the file (in bytes) USER_BLOCKS NUMBER Size of the useful portion of the file (in Oracle blocks) DBA_TABLESPACES Column Datatype Description TABLESPACE_NAME NOT Name of the tablespace

6 BLOCK_SIZE NUMBER NOT Tablespace block size INITIAL_EXTENT NUMBER Default initial extent size NEXT_EXTENT NUMBER Default incremental extent size MIN_EXTENTS NUMBER NOT Default minimum number of extents MAX_EXTENTS NUMBER Default maximum number of extents PCT_INCREASE NUMBER Default percent increase for extent size MIN_EXTLEN NUMBER Minimum extent size for this tablespace STATUS VARCHAR2(9) Tablespace status: ONLINE OFFLINE READ ONLY CONTENTS VARCHAR2(9) Tablespace contents: UNDO PERMANENT TEMPORARY LOGGING VARCHAR2(9) Default logging attribute: LOGGING NOLOGGING FORCE_LOGGING ) Indicates whether the tablespace is under force logging mode (YES) or not (NO) EXTENT_MANAGEMENT VARCHAR2(1 Indicates whether the extents in the tablespace are dictionary managed (DICTIONARY) or locally managed (LOCAL) ALLOCATION_TYPE VARCHAR2(9) Type of extent allocation in effect for the tablespace: SYSTEM UNIFORM USER PLUGGED_IN ) Indicates whether the tablespace is plugged in (YES) or not (NO) SEGMENT_SPACE_MANAGE MENT VARCHAR2(6) Indicates whether the free and used segment space in the tablespace is managed using free lists (MANUAL) or bitmaps (AUTO) DEF_TAB_COMPRESSION VARCHAR2(8) Indicates whether default table compression is enabled (ENABLED) or not (DISABLED) Note: Enabling default table compression indicates that all tables in the tablespace will be created with table compression enabled unless otherwise specified. RETENTION VARCHAR2(1 1) Undo tablespace retention: GUARANTEE - Tablespace is an undo tablespace withretention specified as GUARANTEE A RETENTION value of GUARANTEE indicates that unexpired undo in all undo segments in the undo tablespace should be retained even if it means that forward going operations that need to generate undo in those segments fail. NOGUARANTEE - Tablespace is an undo tablespace with RETENTION

7 specified as NOGUARANTEE NOT APPLY - Tablespace is not an undo tablespace BIGFILE ) Indicates whether the tablespace is a bigfile tablespace (YES) or a smallfile tablespace (NO) DBA_SEGMENTS Column Datatype Description OWNER SEGMENT_NAM E PARTITION_NAM E SEGMENT_TYPE TABLESPACE_N AME VARCHAR2(8 1) VARCHAR2(1 8) Username of the segment owner Name, if any, of the segment Object Partition Name (Set to for nonpartitioned objects) Type of segment: INDEX PARTITION, TABLE PARTITION, TABLE, CLUSTER, INDEX, ROLLBACK, DEFERRED ROLLBACK, TEMPORARY, CACHE, LOBSEGMENTand LOBINDEX Name of the tablespace containing the segment HEADER_FILE NUMBER ID of the file containing the segment header HEADER_BLOCK NUMBER ID of the block containing the segment header BYTES NUMBER Size in bytes, of the segment BLOCKS NUMBER Size, in Oracle blocks, of the segment EXTENTS NUMBER Number of extents allocated to the segment INITIAL_EXTENT NUMBER Size in bytes requested for the initial extent of the segment at create time. (Oracle rounds the extent size to multiples of 5 blocks if the requested size is greater than 5 blocks.) NEXT_EXTENT NUMBER Size in bytes of the next extent to be allocated to the segment MIN_EXTENTS NUMBER Minimum number of extents allowed in the segment MAX_EXTENTS NUMBER Maximum number of extents allowed in the segment PCT_INCREASE NUMBER Percent by which to increase the size of the next extent to be allocated FREELISTS NUMBER Number of process freelists allocated to this segment FREELIST_GRO UPS NUMBER Number of freelist groups allocated to this segment RELATIVE_FNO NUMBER Relative file number of the segment header BUFFER_POOL VARCHAR2(7) Default buffer pool for the object DBA_EXTENTS Column Datatype Description

8 OWNER Owner of the segment associated with the extent SEGMENT_NAME VARCHAR2(81) Name of the segment associated with the extent PARTITION_NAME Object Partition Name (Set to for non-partitioned objects) SEGMENT_TYPE VARCHAR2(18) Type of the segment: INDEX PARTITION, TABLE PARTITION TABLESPACE_NAME Name of the tablespace containing the extent EXTENT_ID NUMBER Extent number in the segment FILE_ID NUMBER File identifier number of the file containing the extent BLOCK_ID NUMBER Starting block number of the extent BYTES NUMBER Size of the extent in bytes BLOCKS NUMBER Size of the extent in Oracle blocks RELATIVE_FNO NUMBER Relative file number of the first extent block DBA_FREE_SPACE Column Datatype Description TABLESPACE_NAME Name of the tablespace containing the extent FILE_ID NUMBER File identifier number of the file containing the extent BLOCK_ID NUMBER Starting block number of the extent BYTES NUMBER Size of the extent (in bytes) BLOCKS NUMBER Size of the extent (in Oracle blocks) RELATIVE_FNO NUMBER Relative file number of the file containing the extent V$SYSSTAT Column Datatype Description STATISTIC# NUMBER Statistic number Note: Statistics numbers are not guaranteed to remain constant from one release to another. Therefore, you should rely on the statistics name rather than its number in your applications. NAME VARCHAR2(64 ) Statistic name. You can get a complete listing of statistic names by querying the V$STATNAME view. CLASS NUMBER A number representing one or more statistics class. The following class numbers are additive: 1 - User 2 - Redo 4 - Enqueue 8 - Cache 16 - OS

9 VALUE NUMBER Statistic value 32 - Real Application Clusters 64 - SQL Debug STAT_ID NUMBER Identifier of the statistic V$PARAMETER Column Datatype Description NUM NUMBER Parameter number NAME VARCHAR2(8 Name of the parameter TYPE NUMBER Parameter type: 1 - Boolean 2 - String 3 - Integer 4 - Parameter file 5 - Reserved 6 - Big integer VALUE DISPLAY_VALUE VARCHAR2(4000 ) VARCHAR2(4000 ) Parameter value for the session (if modified within the session); otherwise, the instance-wide parameter value Parameter value in a user-friendly format. For example, if the VALUE column shows the value for a big integer parameter, then the DISPLAY_VALUE column will show the value 256K. ISDEFAULT VARCHAR2(9) Indicates whether the parameter is set to the default value (TRUE) or the parameter value was specified in the parameter file (FALSE) ISSES_MODIFIABLE VARCHAR2(5) Indicates whether the parameter can be changed withalter SESSION (TRUE) or not (FALSE) ISSYS_MODIFIABLE VARCHAR2(9) Indicates whether the parameter can be changed withalter SYSTEM and when the change takes effect: IMMEDIATE - Parameter can be changed with ALTER SYSTEM regardless of the type of parameter file used to start the instance. The change takes effect immediately. DEFERRED - Parameter can be changed with ALTER SYSTEM regardless of the type of parameter file used to start the instance. The change takes effect in subsequent sessions. FALSE - Parameter cannot be changed with ALTER SYSTEM unless a server parameter file was used to start the instance. The change takes effect in subsequent instances. ISINSTANCE_MODIFIAB LE VARCHAR2(5) For parameters that can be changed with ALTER SYSTEm, indicates whether the value of the parameter can be different for every instance (TRUE) or whether the parameter must have the same value for all Real Application Clusters instances (FALSE). If theissys_modifiable column is FALSE, then this column is always FALSE. ISMODIFIED VARCHAR2(1 Indicates whether the parameter has been modified after instance startup:

10 MODIFIED - Parameter has been modified withalter SESSION SYSTEM_MOD - Parameter has been modified withalter SYSTEM (which causes all the currently logged in sessions' values to be modified) FALSE - Parameter has not been modified after instance startup ISADJUSTED VARCHAR2(5) Indicates whether Oracle adjusted the input value to a more suitable value (for example, the parameter value should be prime, but the user input a non-prime number, so Oracle adjusted the value to the next prime number) ISDEPRECATED VARCHAR2(5) Indicates whether the parameter has been deprecated (TRUE) or not (FALSE) ISBASIC VARCHAR2(5) Indicates whether the parameter is a basic parameter (TRUE) or not (FALSE) DESCRIPTION VARCHAR2(255) Description of the parameter UPDATE_COMMENT VARCHAR2(255) Comments associated with the most recent update HASH NUMBER Hash value for the parameter name DBMS_ROWIDDBMS_ROWID DBA_INDEXES Column Datatype Description OWNER NOT INDEX_NAME NOT Owner of the index Name of the index INDEX_TYPE VARCHAR2(27) Type of the index: NORMAL BITMAP FUNCTION-BASED NORMAL FUNCTION-BASED BITMAP DOMAIN TABLE_OWNER NOT TABLE_NAME NOT Owner of the indexed object Name of the indexed object TABLE_TYPE CHAR(5) Type of the indexed object (for example, TABLE, CLUSTER) UNIQUENESS VARCHAR2(9) Indicates whether the index is UNIQUE or NONUNIQUE COMPRESSION VARCHAR2(8) Indicates whether index compression is enabled (ENABLED) or not (DISABLED) PREFIX_LENGTH NUMBER Number of columns in the prefix of the compression key TABLESPACE_NAME Name of the tablespace containing the index INI_TRANS NUMBER Initial number of transactions MAX_TRANS NUMBER Maximum number of transactions

11 INITIAL_EXTENT NUMBER Size of the initial extent NEXT_EXTENT NUMBER Size of secondary extents MIN_EXTENTS NUMBER Minimum number of extents allowed in the segment MAX_EXTENTS NUMBER Maximum number of extents allowed in the segment PCT_INCREASE NUMBER Percentage increase in extent size PCT_THRESHOLD NUMBER Threshold percentage of block space allowed per index entry INCLUDE_COLUMN NUMBER 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 NUMBER Number of process freelists allocated to this segment FREELIST_GROUPS NUMBER Number of freelist groups allocated to this segment PCT_FREE NUMBER Minimum percentage of free space in a block LOGGING ) Logging information BLEVEL* NUMBER 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* NUMBER Number of leaf blocks in the index DISTINCT_KEYS* NUMBER Number of distinct indexed values. For indexes that enforceunique 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_K EY* AVG_DATA_BLOCKS_PER_ KEY* NUMBER 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. NUMBER 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* NUMBER Indicates the amount of order of the rows in the table based on the values of the index. If the value is near the number of blocks, then the table is very well ordered. In this case, the index entries in a single leaf block tend to point to rows in the same data blocks. If the value is near the number of rows, then the table is very

12 randomly ordered. In this case, it is unlikely that index entries in the same leaf block point to rows in the same data blocks. For bitmap indexes, this column is not applicable and is not used. STATUS VARCHAR2(8) Indicates whether a nonpartitioned index is VALID orunusable NUM_ROWS NUMBER Number of rows in the index SAMPLE_SIZE NUMBER Size of the sample used to analyze the index LAST_ANALYZED DATE Date on which this index was most recently analyzed DEGREE VARCHAR2(4 Number of threads per instance for scanning the index INSTANCES VARCHAR2(4 Number of instances across which the indexes to be scanned PARTITIONED ) Indicates whether the index is partitioned (YES) or not (NO) TEMPORARY VARCHAR2(1) Indicates whether the index is on a temporary table GENERATED VARCHAR2(1) Indicates whether the name of the index is system generated (Y) or not (N) SECONDARY VARCHAR2(1) Indicates whether the index is a secondary object created by the ODCIIndexCreate method of the Oracle Data Cartridge (Y) or not (N) BUFFER_POOL VARCHAR2(7) Name of the default buffer pool to be used for the index blocks USER_STATS ) Indicates whether statistics were entered directly by the user (YES) or not (NO) DURATION VARCHAR2(15) Indicates the duration of a temporary table: SYS$SESSION - Rows are preserved for the duration of the session SYS$TRANSACTION - Rows are deleted after COMMIT Null for a permanent table PCT_DIRECT_ACCESS NUMBER For a secondary index on an indexorganized table, the percentage of rows with VALID guess ITYP_OWNER For a domain index, the owner of the indextype ITYP_NAME For a domain index, the name of the indextype PARAMETERS VARCHAR2(100 For a domain index, the parameter string GLOBAL_STATS ) For partitioned indexes, indicates whether statistics were collected by analyzing the index as a whole (YES) or were estimated from statistics on underlying index partitions and

13 subpartitions (NO) DOMIDX_STATUS VARCHAR2(12) Status of the domain index: - Index is not a domain index VALID - Index is a valid domain index IDXTYP_INVLD - Indextype of the domain index is invalid DOMIDX_OPSTATUS VARCHAR2(6) Status of the operation on the domain index: - Index is not a domain index VALID - Operation performed without errors FAILED - Operation failed with an error FUNCIDX_STATUS VARCHAR2(8) Status of a function-based index: - Index is not a functionbased index ENABLED - Function-based index is enabled DISABLED - Function-based index is disabled JOIN_INDEX ) Indicates whether the index is a join index (YES) or not (NO) IOT_REDUNDANT_PKEY_EL IM ) Indicates whether redundant primary key columns are eliminated from secondary indexes on index-organized tables (YES) or not (NO) DROPPED ) Indicates whether the index has been dropped and is in the recycle bin (YES) or not (NO); null for partitioned tables DBA_IND_COLUMNS Column Datatype Description INDEX_OWNER NOT Owner of the index INDEX_NAME NOT Name of the index TABLE_OWNER NOT Owner of the table or cluster TABLE_NAME NOT Name of the table or cluster COLUMN_NAME VARCHAR2(400 Column name or attribute of object type column Note: If you create an index on a user-defined REF column, the system creates the index on the attributes that make up the REF column. Therefore, the column names displayed in this view are the attribute names, with the REF column name as a prefix, in the following form: "REF_name"."attribute" COLUMN_POSITION NUMBER NOT Position of column or attribute within the index COLUMN_LENGTH NUMBER NOT Indexed length of the column CHAR_LENGTH NUMBER Maximum codepoint length of the

14 column DESCEND VARCHAR2(4) Whether the column is sorted in descending order (Y/N) DBA_IND_EXPRESSIONS Column Datatype Description INDEX_OWNER NOT Index owner INDEX_NAME NOT Index name TABLE_OWNER NOT Table or cluster owner TABLE_NAME NOT Table or cluster name COLUMN_EXPRESSIO N LONG Function-based index expression defining the column COLUMN_POSITION NUMBER NOT Position of column or attribute within index