各种类型的字段各多少byte怎么算?
谢谢!
谢谢!
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- 有多个字段以上相同的SQL怎么写?
d.extent_management "Extent Management",
TO_CHAR (NVL (a.BYTES / 1024 / 1024, 0), '99,999,990.900') "Size (M)",
TO_CHAR (NVL (a.BYTES - NVL (f.BYTES, 0), 0) / 1024 / 1024,'99999999.999')
|| '/' || TO_CHAR (NVL (a.BYTES / 1024 / 1024, 0), '99999999.999') "Used (M)",
TO_CHAR (NVL ((a.BYTES - NVL (f.BYTES, 0)) / a.BYTES * 100, 0),'990.00' ) "Used %"
FROM SYS.dba_tablespaces d,
(SELECT tablespace_name, SUM (BYTES) BYTES
FROM dba_data_files
GROUP BY tablespace_name) a,
(SELECT tablespace_name, SUM (BYTES) BYTES
FROM dba_free_space
GROUP BY tablespace_name) f
WHERE d.tablespace_name = a.tablespace_name(+)
AND d.tablespace_name = f.tablespace_name(+)
AND NOT (d.extent_management LIKE 'LOCAL' AND d.CONTENTS LIKE 'TEMPORARY')
UNION ALL
SELECT d.status "Status", d.tablespace_name "Name", d.CONTENTS "Type",
d.extent_management "Extent Management",
TO_CHAR (NVL (a.BYTES / 1024 / 1024, 0), '99,999,990.900') "Size (M)",
TO_CHAR (NVL (t.BYTES, 0) / 1024 / 1024, '99999999.999')
|| '/' || TO_CHAR (NVL (a.BYTES / 1024 / 1024, 0), '99999999.999') "Used (M)",
TO_CHAR (NVL (t.BYTES / a.BYTES * 100, 0), '990.00') "Used %"
FROM SYS.dba_tablespaces d,
(SELECT tablespace_name, SUM (BYTES) BYTES
FROM dba_temp_files
GROUP BY tablespace_name) a,
(SELECT tablespace_name, SUM (bytes_cached) BYTES
FROM v$temp_extent_pool
GROUP BY tablespace_name) t
WHERE d.tablespace_name = a.tablespace_name(+)
AND d.tablespace_name = t.tablespace_name(+)
AND d.extent_management LIKE 'LOCAL'
AND d.CONTENTS LIKE 'TEMPORARY';