select /*+ monitor */ count(1) from ZX.RECORD_TO_TEXT_LIST_DAY; //语句
select * from table(dbms_xplan.display_cursor()); //调出SQL_ID
SET LONG 1000000
SET LONGCHUNKSIZE 1000000
SET LINESIZE 1000
SET PAGESIZE 0
SET TRIM ON
SET TRIMSPOOL ON
SET ECHO OFF
SET FEEDBACK OFF
SELECT DBMS_SQLTUNE.report_sql_monitor(sql_id => '&sql_id', type => 'TEXT') AS report FROM dual; //看具体执行计划
select TABLE_OWNER,TABLE_NAME,PARTITION_NAME,NUM_ROWS from dba_tab_partitions where table_name='RECORD_TO_TEXT_LIST_DAY'; //看分区表的表数据
select table_name,column_name,segment_name,tablespace_name from dba_lobs where table_name='RECORD_TO_TEXT_LIST_DAY'; //查看lob字段
select segment_name,bytes/1024/1024 from dba_segments where segment_name in ('SYS_LOB0000110477C00039$$','SYS_LOB0000110477C00040$$','SYS_LOB0000110477C00041$$'); //看lob字段大小
select table_name,PARTITION_NAME,NUM_ROWS,EMPTY_BLOCKS,CHAIN_CNT,LAST_ANALYZED from dba_tab_statistics where table_name='RECORD_TO_TEXT_LIST_DAY'; //看看表的统计信息情况
CREATE OR REPLACE PROCEDURE show_space
(
p_segname IN VARCHAR2,
p_owner IN VARCHAR2 DEFAULT USER,
p_type IN VARCHAR2 DEFAULT 'TABLE',
p_partition IN VARCHAR2 DEFAULT NULL
)
-- this procedure uses authid current user so it can query DBA_*
-- views using privileges from a ROLE, and so it can be installed
-- once per database, instead of once per user who wanted to use it
AUTHID CURRENT_USER AS
l_free_blks NUMBER;
l_total_blocks NUMBER;
l_total_bytes NUMBER;
l_unused_blocks NUMBER;
l_unused_bytes NUMBER;
l_LastUsedExtFileId NUMBER;
l_LastUsedExtBlockId NUMBER;
l_LAST_USED_BLOCK NUMBER;
l_segment_space_mgmt VARCHAR2(255);
l_unformatted_blocks NUMBER;
l_unformatted_bytes NUMBER;
l_fs1_blocks NUMBER;
l_fs1_bytes NUMBER;
l_fs2_blocks NUMBER;
l_fs2_bytes NUMBER;
l_fs3_blocks NUMBER;
l_fs3_bytes NUMBER;
l_fs4_blocks NUMBER;
l_fs4_bytes NUMBER;
l_full_blocks NUMBER;
l_full_bytes NUMBER;
-- inline procedure to print out numbers nicely formatted
-- with a simple label
PROCEDURE p
(
p_label IN VARCHAR2,
p_num IN NUMBER
) IS
BEGIN
dbms_output.put_line(rpad(p_label, 40, '.') ||
to_char(p_num, '999,999,999,999'));
END;
BEGIN
-- this query is executed dynamically in order to allow this procedure
-- to be created by a user who has access to DBA_SEGMENTS/TABLESPACES
-- via a role as is customary.
-- NOTE: at runtime, the invoker MUST have access to these two
-- views!
-- this query determines if the object is an ASSM object or not
BEGIN
EXECUTE IMMEDIATE 'select ts.segment_space_management
from dba_segments seg, dba_tablespaces ts
where seg.segment_name = :p_segname
and (:p_partition is null or
seg.partition_name = :p_partition)
and seg.owner = :p_owner
and seg.tablespace_name = ts.tablespace_name'
INTO l_segment_space_mgmt
USING p_segname, p_partition, p_partition, p_owner;
EXCEPTION
WHEN too_many_rows THEN
dbms_output.put_line('This must be a partitioned table, use p_partition => ');
RETURN;
END;
-- if the object is in an ASSM tablespace, we must use this API
-- call to get space information, otherwise we use the FREE_BLOCKS
-- API for the user-managed segments
IF l_segment_space_mgmt = 'AUTO' THEN
dbms_space.space_usage(p_owner,
p_segname,
p_type,
l_unformatted_blocks,
l_unformatted_bytes,
l_fs1_blocks,
l_fs1_bytes,
l_fs2_blocks,
l_fs2_bytes,
l_fs3_blocks,
l_fs3_bytes,
l_fs4_blocks,
l_fs4_bytes,
l_full_blocks,
l_full_bytes,
p_partition);
p('Unformatted Blocks ', l_unformatted_blocks);
p('FS1 Blocks (0-25) ', l_fs1_blocks);
p('FS2 Blocks (25-50) ', l_fs2_blocks);
p('FS3 Blocks (50-75) ', l_fs3_blocks);
p('FS4 Blocks (75-100)', l_fs4_blocks);
p('Full Blocks ', l_full_blocks);
ELSE
dbms_space.free_blocks(segment_owner => p_owner,
segment_name => p_segname,
segment_type => p_type,
freelist_group_id => 0,
free_blks => l_free_blks);
p('Free Blocks', l_free_blks);
END IF;
-- and then the unused space API call to get the rest of the
-- information
dbms_space.unused_space(segment_owner => p_owner,
segment_name => p_segname,
segment_type => p_type,
partition_name => p_partition,
total_blocks => l_total_blocks,
total_bytes => l_total_bytes,
unused_blocks => l_unused_blocks,
unused_bytes => l_unused_bytes,
LAST_USED_EXTENT_FILE_ID => l_LastUsedExtFileId,
LAST_USED_EXTENT_BLOCK_ID => l_LastUsedExtBlockId,
LAST_USED_BLOCK => l_LAST_USED_BLOCK);
p('Total Blocks', l_total_blocks);
p('Total Bytes', l_total_bytes);
p('Total MBytes', trunc(l_total_bytes / 1024 / 1024));
p('Unused Blocks', l_unused_blocks);
p('Unused Bytes', l_unused_bytes);
p('Last Used Ext FileId', l_LastUsedExtFileId);
p('Last Used Ext BlockId', l_LastUsedExtBlockId);
p('Last Used Block', l_LAST_USED_BLOCK);
END;
/
//看空间分配情况
set serveroutput on
exec show_space('表名','用户名','段类型','分区名');
exec show_space('RECORD_TO_TEXT_LIST_DAY','ZX','TABLE PARTITION','RECORD_TO_TEXT_201908'); //查看具体分区表情况
