Chang_cnt count in dba_tables ...
Hi,
I have following tables which have chain_cnt count is > 0.
what is a impact for this count in performance of thease tables ...
What should i do to make it this as 0 ...
Thanks in advance
SSM
==================================================
SQL> select table_name,chain_cnt from dba_tables
2* where chain_cnt > 0
SQL> /
TABLE_NAME CHAIN_CNT
TTPLOC006730 2616
TTPLOC002730 123
TTIHRA360730 127
TTIHRA100730 877
TTDPUR920730 10
TTFGLD201730 87
TTDPUR901730 549
TTFGLD018730 2492
TTDIND902730 2
TTFCMG112730 413
TTFCMG110730 103
TABLE_NAME CHAIN_CNT
TTFCMG100730 860
TTFACP954730 391
TTFGLD418930 119
TTFGLD201930 10
TTFCMG112930 90
TTFCMG100930 269
17 rows selected.
SQL>
You should compare chain_cnt to num_rows to find out whether it is really a problem. You should also check avg_row_size, to verify whether your records aren't bigger than db_block_size by design (in which case no measure would help).
You can reorganize a table by issuing
alter table <table_name> move tablespace <original_tablespace>
Sybrand Bakker
Senior Oracle DBA
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Kind Regards,
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2012-07-31 16:33:06 INFO OGG-01226 Oracle GoldenGate Capture for Oracle, ext1.prm: Socket buffer size set to 27985 (flu
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Table created.
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1 row created.
INSERTED MORE SUCH DUMMY VALUES
SQL> commit;
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3iinfi3 3iinfi3
4iinfi4 4iinfi4
5iinfi5 5iinfi5
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How to find rowcount of all schema all tables
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Thanks
MaverickMaverick wrote:
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Thanks
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how any and which tables.select count(*) from dba_tables;
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PLATFORM:
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SQL> select * from v$version;
BANNER
Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - Prod
PL/SQL Release 10.2.0.1.0 - Production
CORE 10.2.0.1.0 Production
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NLSRTL Version 10.2.0.1.0 - Production
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drop tablespace users including contents and datafiles cascade constraints
ERROR at line 1:
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When I see, dba_queue_tables...
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SYS ALERT_QT SYS.ALERT_TYPE
SYS AQ$_MEM_MC
SYS AQ_EVENT_TABLE SYS.AQ$_EVENT_MESSAGE
SYS AQ_SRVNTFN_TABLE SYS.AQ$_SRVNTFN_MESSAGE
SYS KUPC$DATAPUMP_QUETAB SYS.KUPC$_MESSAGE
SYS SCHEDULER$_EVENT_QTAB SYS.SCHEDULER$_EVENT_INFO
SYS SCHEDULER$_JOBQTAB SYS.ANYDATA
SYS SYS$SERVICE_METRICS_TAB SYS.SYS$RLBTYP
SYSMAN MGMT_NOTIFY_QTABLE SYSMAN.MGMT_NOTIFY_NOTIFICATION
SYSTEM DEF$_AQCALL
SYSTEM DEF$_AQERROR
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PROPERTY_NAME PROPERTY_VALUE
DEFAULT_PERMANENT_TABLESPACE DEV
Can you please help me drop the USERS tablespace.Thanks Hemant,
I queried as below.
SQL> select count(*) from dba_segments where tablespace_name='USERS';
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7
SQL> SELECT owner, segment_name, segment_type from dba_segments where tablespace_name='USERS';
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IX SYS_IOT_TOP_62384
INDEX
IX SYS_IOT_TOP_62386
INDEX
IX SYS_IOT_TOP_62390
INDEX
IX SYS_IOT_TOP_62392
INDEX
IX SYS_IOT_TOP_62395
INDEX
IX SYS_IOT_TOP_62397
INDEX
IX SYS_IOT_TOP_62401
INDEX
7 rows selected.
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drop user ix cascade
ERROR at line 1:
ORA-00604: error occurred at recursive SQL level 1
ORA-24005: must use DBMS_AQADM.DROP_QUEUE_TABLE to drop queue tables
Then connected as 'IX' user.
IX@devdb> exec sys.DBMS_AQADM.DROP_QUEUE_TABLE(queue_table=>'SYS_IOT_TOP_62384',force => TRUE);
BEGIN sys.DBMS_AQADM.DROP_QUEUE_TABLE(queue_table=>'SYS_IOT_TOP_62384',force => TRUE); END;
ERROR at line 1:
ORA-24002: QUEUE_TABLE IX.SYS_IOT_TOP_62384 does not exist
ORA-06512: at "SYS.DBMS_AQADM_SYS", line 4084
ORA-06512: at "SYS.DBMS_AQADM", line 197
ORA-06512: at line 1
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IX@devdb> SELECT INDEX_TYPE,TABLE_NAME,TABLESPACE_NAME,STATUS FROM USER_INDEXES;
INDEX_TYPE TABLE_NAME TABLESPACE_NAME STATUS
LOB STREAMS_QUEUE_TABLE DEV VALID
NORMAL ORDERS_QUEUETABLE DEV VALID
NORMAL STREAMS_QUEUE_TABLE DEV VALID
NORMAL AQ$_ORDERS_QUEUETABLE_S DEV VALID
NORMAL AQ$_STREAMS_QUEUE_TABLE_C DEV VALID
NORMAL AQ$_STREAMS_QUEUE_TABLE_S DEV VALID
LOB STREAMS_QUEUE_TABLE DEV VALID
LOB ORDERS_QUEUETABLE DEV VALID
IOT - TOP AQ$_STREAMS_QUEUE_TABLE_T USERS VALID
IOT - TOP AQ$_STREAMS_QUEUE_TABLE_I USERS VALID
IOT - TOP AQ$_STREAMS_QUEUE_TABLE_H USERS VALID
IOT - TOP AQ$_STREAMS_QUEUE_TABLE_C USERS VALID
IOT - TOP AQ$_ORDERS_QUEUETABLE_T USERS VALID
IOT - TOP AQ$_ORDERS_QUEUETABLE_I USERS VALID
IOT - TOP AQ$_ORDERS_QUEUETABLE_H USERS VALID
15 rows selected.
IX@devdb> alter table AQ$_STREAMS_QUEUE_TABLE_T move tablespace dev;
alter table AQ$_STREAMS_QUEUE_TABLE_T move tablespace dev
ERROR at line 1:
ORA-08108: may not build or rebuild this type of index online
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