查询时TABLENAME替换为表名,USERNAME替换为用户名。
查表大小(表中无lob,clob字段,不包含索引大小)
select segment_name as tablename,bytes/1024/1024/1024 gb from dba_segments where segment_name='TABLENAME' and owner='USERNAME'; 或 select |
查表大小(表中无lob,clob字段,包含索引大小)
select (select nvl(sum(s.bytes/1024/1024/1024),0) gb from dba_segments s where s.owner = upper('USERNAME') and (s.segment_name = upper('TABLENAME'))) + (select nvl(sum(s.bytes/1024/1024/1024),0) gb from dba_segments s, dba_indexes i where s.owner = upper('USERNAME') and (i.index_name = s.segment_name and i.table_name = upper('TABLENAME') and index_type = 'lob' and i.owner = upper('USERNAME'))) "total table size" from dual; |
查表大小(表中有lob,clob字段,不含索引大小)
select |
查表大小(表中有lob,clob字段,含索引大小)
select (select nvl(sum(s.bytes/1024/1024/1024),0) gb from dba_segments s where s.owner = upper('USERNAME') and (s.segment_name = upper('TABLENAME'))) + (select nvl(sum(s.bytes/1024/1024/1024),0) gb from dba_segments s, dba_lobs l where s.owner = upper('USERNAME') and (l.segment_name = s.segment_name and l.table_name = upper('TABLENAME') and l.owner = upper('USERNAME'))) + (select nvl(sum(s.bytes/1024/1024/1024),0) gb from dba_segments s, dba_indexes i where s.owner = upper('USERNAME') and (i.index_name = s.segment_name and i.table_name = upper('TABLENAME') and index_type = 'lob' and i.owner = upper('USERNAME'))) "total table size" from dual; |