该实验刚好佐证了11g创建一个表,只是产生了一个表定义,并未分配任何空间
附show_space过程代码,觉得这段代码挺有用,记下来mark 一下:
CREATE OR REPLACE PROCEDURE show_space (p_segname_1 IN varchar2,
p_space IN varchar2 DEFAULT 'MANUAL' ,
p_type_1 IN varchar2 DEFAULT 'TABLE' ,
p_analyzed IN varchar2 DEFAULT 'N' ,
p_owner_1 IN varchar2 DEFAULT USER
)
AS
p_segname VARCHAR2 (100);
p_type VARCHAR2 (10);
p_owner VARCHAR2 (30);
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;
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;
PROCEDURE p (p_label IN varchar2, p_num IN number)
IS
BEGIN
DBMS_OUTPUT.put_line (RPAD (p_label, 40, '.') || p_num);
END;
BEGIN
p_segname := UPPER (p_segname_1); -- rainy changed
p_owner := UPPER (p_owner_1);
p_type := p_type_1;
IF (p_type_1 = 'i' OR p_type_1 = 'I')
THEN --rainy changed
p_type := 'INDEX';
END IF;
IF (p_type_1 = 't' OR p_type_1 = 'T')
THEN --rainy changed
p_type := 'TABLE';
END IF;
IF (p_type_1 = 'c' OR p_type_1 = 'C')
THEN --rainy changed
p_type := 'CLUSTER';
END IF;
DBMS_SPACE.unused_space (segment_owner => p_owner,
segment_name => p_segname,
segment_type => p_type,
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
);
IF p_space = 'MANUAL' OR (p_space <> 'auto' AND p_space <> 'AUTO')
THEN
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;
p ('Total Blocks', l_total_blocks);
p ('Total Bytes', l_total_bytes);
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);
/*IF the segment is analyzed */
IF p_analyzed = 'Y'
THEN
DBMS_SPACE.space_usage (segment_owner => p_owner,
segment_name => p_segname,
segment_type => p_type,
unformatted_blocks => l_unformatted_blocks,
unformatted_bytes => l_unformatted_bytes,
fs1_blocks => l_fs1_blocks,
fs1_bytes => l_fs1_bytes,
fs2_blocks => l_fs2_blocks,
fs2_bytes => l_fs2_bytes,
fs3_blocks => l_fs3_blocks,
fs3_bytes => l_fs3_bytes,
fs4_blocks => l_fs4_blocks,
fs4_bytes => l_fs4_bytes,
full_blocks => l_full_blocks,
full_bytes => l_full_bytes
);
DBMS_OUTPUT.put_line (RPAD (' ', 50, '*'));
DBMS_OUTPUT.put_line ('The segment is analyzed');
p ('0% -- 25% free space blocks', l_fs1_blocks);
p ('0% -- 25% free space bytes', l_fs1_bytes);
p ('25% -- 50% free space blocks', l_fs2_blocks);
p ('25% -- 50% free space bytes', l_fs2_bytes);
p ('50% -- 75% free space blocks', l_fs3_blocks);
p ('50% -- 75% free space bytes', l_fs3_bytes);
p ('75% -- 100% free space blocks', l_fs4_blocks);
p ('75% -- 100% free space bytes', l_fs4_bytes);
p ('Unused Blocks', l_unformatted_blocks);
p ('Unused Bytes', l_unformatted_bytes);
p ('Total Blocks', l_full_blocks);
p ('Total bytes', l_full_bytes);
END IF;
END;