{"id":3530,"date":"2018-05-15T10:51:51","date_gmt":"2018-05-15T02:51:51","guid":{"rendered":"http:\/\/switch.linesno.com\/?p=3530"},"modified":"2018-05-15T10:51:51","modified_gmt":"2018-05-15T02:51:51","slug":"oracle%e5%b8%b8%e7%94%a8%e6%80%a7%e8%83%bd%e7%9b%91%e6%8e%a7sql","status":"publish","type":"post","link":"http:\/\/switch.linesno.com\/?p=3530","title":{"rendered":"ORACLE\u5e38\u7528\u6027\u80fd\u76d1\u63a7SQL"},"content":{"rendered":"

Temp\u8868\u7a7a\u95f4\u4e0a\u8fdb\u7a0b\u7684\u67e5\u8be2<\/h1>\n
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1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n<\/td>\n
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select<\/code> a.tablespace, b.sid, b.serial#, a.blocks,c.sql_text<\/code><\/div>\n
\u00a0\u00a0<\/code>from<\/code> v$sort_usage a,v$session b,v$sqltext c<\/code><\/div>\n
\u00a0<\/code>where<\/code> a.session_addr = b.saddr<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>and<\/code> b.sql_address = c.address<\/code><\/div>\n
\u00a0<\/code>order<\/code> by<\/code> a.tablespace,b.sid,b.serial#,c.address, c.piece;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u67e5\u770b\u8868\u9501<\/h1>\n
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1<\/div>\n<\/td>\n
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select<\/code> * <\/code>from<\/code> sys.v_$sqlarea <\/code>where<\/code> disk_reads>100;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u76d1\u63a7\u4e8b\u4f8b\u7684\u7b49\u5f85<\/h1>\n
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1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n<\/td>\n
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select<\/code> event,<\/code>sum<\/code>(decode(wait_Time,0,0,1)) <\/code>\"Prev\"<\/code>, <\/code><\/div>\n
sum<\/code>(decode(wait_Time,0,1,0)) <\/code>\"Curr\"<\/code>,<\/code>count<\/code>(*) <\/code>\"Tot\"<\/code><\/div>\n
from<\/code> v$session_Wait <\/code><\/div>\n
group<\/code> by<\/code> event <\/code>order<\/code> by<\/code> 4 ;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u56de\u6eda\u6bb5\u7684\u4e89\u7528\u60c5\u51b5<\/h1>\n
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1<\/div>\n
2<\/div>\n
3<\/div>\n<\/td>\n
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select<\/code> name<\/code>, waits, gets, waits\/gets <\/code>\"Ratio\"<\/code><\/div>\n
from<\/code> v$rollstat a, v$rollname b <\/code><\/div>\n
where<\/code> a.usn = b.usn;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u67e5\u770b\u524d\u53f0\u6b63\u5728\u53d1\u51fa\u7684SQL\u8bed\u53e5<\/h1>\n
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1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n<\/td>\n
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select<\/code> user_name,sql_text<\/code><\/div>\n
\u3000\u3000 <\/code>from<\/code> v$open_cursor<\/code><\/div>\n
\u3000\u3000 <\/code>where<\/code> sid <\/code>in<\/code> (<\/code>select<\/code> sid <\/code>from<\/code> (<\/code>select<\/code> sid,serial#,username,program<\/code><\/div>\n
\u3000\u3000 <\/code>from<\/code> v$session<\/code><\/div>\n
\u3000\u3000 <\/code>where<\/code> status=<\/code>'ACTIVE'<\/code>));<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u6570\u636e\u8868\u5360\u7528\u7a7a\u95f4\u5927\u5c0f\u60c5\u51b5<\/h1>\n
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1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n<\/td>\n
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select<\/code> segment_name,tablespace_name,bytes,blocks <\/code><\/div>\n
from<\/code> user_segments <\/code><\/div>\n
where<\/code> segment_type=<\/code>'TABLE'<\/code><\/div>\n
ORDER<\/code> BY<\/code> bytes <\/code>DESC<\/code> ,blocks <\/code>DESC<\/code>;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u67e5\u770b\u8868\u7a7a\u95f4\u788e\u7247\u5927\u5c0f<\/h1>\n
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1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n<\/td>\n
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select<\/code> tablespace_name,round(sqrt(<\/code>max<\/code>(blocks)\/<\/code>sum<\/code>(blocks))*<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>(100\/sqrt(sqrt(<\/code>count<\/code>(blocks)))),2) FSFI<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>from<\/code> dba_free_space<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>group<\/code> by<\/code> tablespace_name <\/code>order<\/code> by<\/code> 1;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u67e5\u770b\u8868\u7a7a\u95f4\u5360\u7528\u78c1\u76d8\u60c5\u51b5<\/h1>\n
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1<\/div>\n
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11<\/div>\n<\/td>\n
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select<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>b.file_id\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u6587\u4ef6ID\u53f7,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>b.tablespace_name\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u8868\u7a7a\u95f4\u540d,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>b.bytes\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5b57\u8282\u6570,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>(b.bytes-<\/code>sum<\/code>(nvl(a.bytes,0)))\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5df2\u4f7f\u7528,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>sum<\/code>(nvl(a.bytes,0))\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5269\u4f59\u7a7a\u95f4,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>sum<\/code>(nvl(a.bytes,0))\/(b.bytes)*100\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 \u5269\u4f59\u767e\u5206\u6bd4 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>from<\/code> dba_free_space a,dba_data_files b <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>where<\/code> a.file_id=b.file_id <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>group<\/code> by<\/code> b.tablespace_name,b.file_id,b.bytes <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>order<\/code> by<\/code> b.file_id;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u67e5\u770bOracle<\/a>\u00a0\u8868\u7a7a\u95f4\u4f7f\u7528\u7387<\/h1>\n
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1<\/div>\n
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34<\/div>\n<\/td>\n
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SELECT<\/code> D.TABLESPACE_NAME,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>SPACE<\/code> || <\/code>'M'<\/code> \"SUM_SPACE(M)\"<\/code>,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>SPACE<\/code> - NVL (FREE_SPACE, 0) || <\/code>'M'<\/code> \"USED_SPACE(M)\"<\/code>,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>ROUND ( (1 - NVL (FREE_SPACE, 0) \/ <\/code>SPACE<\/code>) * 100, 2) || <\/code>'%'<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>\"USED_RATE(%)\"<\/code>,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>FREE_SPACE || <\/code>'M'<\/code> \"FREE_SPACE(M)\"<\/code><\/div>\n
\u00a0\u00a0<\/code>FROM<\/code> (\u00a0 <\/code>SELECT<\/code> TABLESPACE_NAME,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>ROUND (<\/code>SUM<\/code> (BYTES) \/ (1024 * 1024), 2) <\/code>SPACE<\/code>,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>SUM<\/code> (BLOCKS) BLOCKS\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>FROM<\/code> DBA_DATA_FILES\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>GROUP<\/code> BY<\/code> TABLESPACE_NAME) D,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>(\u00a0 <\/code>SELECT<\/code> TABLESPACE_NAME,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>ROUND (<\/code>SUM<\/code> (BYTES) \/ (1024 * 1024), 2) FREE_SPACE\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>FROM<\/code> DBA_FREE_SPACE\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>GROUP<\/code> BY<\/code> TABLESPACE_NAME) F\u00a0 <\/code><\/div>\n
\u00a0<\/code>WHERE<\/code> D.TABLESPACE_NAME = F.TABLESPACE_NAME(+)\u00a0 <\/code><\/div>\n
UNION<\/code> ALL<\/code>\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 --\u5982\u679c\u6709\u4e34\u65f6\u8868\u7a7a\u95f4\u00a0 <\/code><\/div>\n
SELECT<\/code> D.TABLESPACE_NAME,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>SPACE<\/code> || <\/code>'M'<\/code> \"SUM_SPACE(M)\"<\/code>,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>USED_SPACE || <\/code>'M'<\/code> \"USED_SPACE(M)\"<\/code>,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>ROUND (NVL (USED_SPACE, 0) \/ <\/code>SPACE<\/code> * 100, 2) || <\/code>'%'<\/code> \"USED_RATE(%)\"<\/code>,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>NVL (FREE_SPACE, 0) || <\/code>'M'<\/code> \"FREE_SPACE(M)\"<\/code><\/div>\n
\u00a0\u00a0<\/code>FROM<\/code> (\u00a0 <\/code>SELECT<\/code> TABLESPACE_NAME,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>ROUND (<\/code>SUM<\/code> (BYTES) \/ (1024 * 1024), 2) <\/code>SPACE<\/code>,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>SUM<\/code> (BLOCKS) BLOCKS\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>FROM<\/code> DBA_TEMP_FILES\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>GROUP<\/code> BY<\/code> TABLESPACE_NAME) D,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>(\u00a0 <\/code>SELECT<\/code> TABLESPACE_NAME,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>ROUND (<\/code>SUM<\/code> (BYTES_USED) \/ (1024 * 1024), 2) USED_SPACE,\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>ROUND (<\/code>SUM<\/code> (BYTES_FREE) \/ (1024 * 1024), 2) FREE_SPACE\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>FROM<\/code> V$TEMP_SPACE_HEADER\u00a0 <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>GROUP<\/code> BY<\/code> TABLESPACE_NAME) F\u00a0 <\/code><\/div>\n
\u00a0<\/code>WHERE<\/code> D.TABLESPACE_NAME = F.TABLESPACE_NAME(+)\u00a0 <\/code><\/div>\n
ORDER<\/code> BY<\/code> 1;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u67e5\u770bTemp \u8868\u7a7a\u95f4\u5b9e\u9645\u4f7f\u7528\u78c1\u76d8\u5927\u5c0f<\/h1>\n
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1<\/div>\n
2<\/div>\n
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Select<\/code> f.tablespace_name,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>d.file_name <\/code>\"Tempfile name\"<\/code>,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>round((f.bytes_free + f.bytes_used) \/ 1024 \/ 1024, 2) <\/code>\"total MB\"<\/code>,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>round(((f.bytes_free + f.bytes_used) - nvl(p.bytes_used, 0)) \/ 1024 \/ 1024,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>2) <\/code>\"Free MB\"<\/code>,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>round(nvl(p.bytes_used, 0) \/ 1024 \/ 1024, 2) <\/code>\"Used MB\"<\/code>,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>round((round(nvl(p.bytes_used, 0) \/ 1024 \/ 1024, 2) \/<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>round((f.bytes_free + f.bytes_used) \/ 1024 \/ 1024, 2)) * 100,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>2) <\/code>as<\/code> \"Used_Rate(%)\"<\/code><\/div>\n
\u00a0\u00a0<\/code>from<\/code> SYS.V_$TEMP_SPACE_HEADER f,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>DBA_TEMP_FILES\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 d,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>SYS.V_$TEMP_EXTENT_POOL\u00a0 p<\/code><\/div>\n
\u00a0<\/code>where<\/code> f.tablespace_name(+) = d.tablespace_name<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>and<\/code> f.file_id(+) = d.file_id<\/code><\/div>\n
\u00a0\u00a0\u00a0<\/code>and<\/code> p.file_id(+) = d.file_id;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u67e5\u770bsession\u4f7f\u7528\u56de\u6eda\u6bb5<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n
7<\/div>\n
8<\/div>\n
9<\/div>\n
10<\/div>\n
11<\/div>\n
12<\/div>\n
13<\/div>\n<\/td>\n
\n
\n
SELECT<\/code>\u00a0 r.<\/code>name<\/code> \u56de\u6eda\u6bb5\u540d,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>s.sid,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>s.serial#,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>s.username \u7528\u6237\u540d,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>t.status,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>t.cr_get,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>t.phy_io,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>t.used_ublk,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>t.noundo,<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>substr(s.program, 1, 78) \u64cd\u4f5c\u7a0b\u5e8f<\/code><\/div>\n
FROM<\/code>\u00a0\u00a0 sys.v_$session s,sys.v_$<\/code>transaction<\/code> t,sys.v_$rollname r<\/code><\/div>\n
WHERE<\/code>\u00a0 t.addr = s.taddr <\/code>and<\/code> t.xidusn = r.usn<\/code><\/div>\n
ORDER<\/code>\u00a0 BY<\/code> t.cr_get,t.phy_io;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u67e5\u770bSGA\u533a\u5269\u4f59\u53ef\u7528\u5185\u5b58<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n<\/td>\n
\n
\n
select<\/code> name<\/code>,<\/code><\/div>\n
\u3000\u3000\u3000\u3000\u3000\u3000sgasize\/1024\/1024\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000<\/code>\"Allocated(M)\"<\/code>,<\/code><\/div>\n
\u3000\u3000\u3000\u3000\u3000\u3000bytes\/1024\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000\u3000 <\/code>\"**\u7a7a\u95f4(K)\"<\/code>,<\/code><\/div>\n
\u3000\u3000\u3000\u3000\u3000\u3000round(bytes\/sgasize*100, 2)\u3000\u3000\u3000<\/code>\"**\u7a7a\u95f4\u767e\u5206\u6bd4(%)\"<\/code><\/div>\n
\u3000\u3000 <\/code>from<\/code>\u00a0\u00a0 (<\/code>select<\/code> sum<\/code>(bytes) sgasize <\/code>from<\/code> sys.v_$sgastat) s, sys.v_$sgastat f<\/code><\/div>\n
\u3000\u3000 <\/code>where<\/code>\u00a0 f.<\/code>name<\/code> = <\/code>'free memory'<\/code>;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u2013\u76d1\u63a7\u8868\u7a7a\u95f4I\/O\u6bd4\u4f8b
\nselect df.tablespace_name name,df.file_name \u201cfile\u201d,f.phyrds pyr,
\nf.phyblkrd pbr,f.phywrts pyw, f.phyblkwrt pbw
\nfrom v$filestat f, dba_data_files df
\nwhere f.file# = df.file_id
\norder by df.tablespace_name;<\/p>\n

\u76d1\u63a7SGA\u547d\u4e2d\u7387<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n
7<\/div>\n<\/td>\n
\n
\n
select<\/code> a.value + b.value <\/code>\"logical_reads\"<\/code>, <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>c.value <\/code>\"phys_reads\"<\/code>, <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>round(100 * ((a.value+b.value)-c.value) \/ (a.value+b.value)) <\/code>\"BUFFER HIT RATIO\"<\/code><\/div>\n
from<\/code> v$sysstat a, v$sysstat b, v$sysstat c <\/code><\/div>\n
where<\/code> a.statistic# = 38 <\/code>and<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>b.statistic# = 39 <\/code>and<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>c.statistic# = 40 ;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u76d1\u63a7 SGA \u4e2d\u5b57\u5178\u7f13\u51b2\u533a\u7684\u547d\u4e2d\u7387<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n<\/td>\n
\n
\n
select<\/code> parameter, gets,Getmisses , getmisses\/(gets+getmisses)*100 <\/code>\"miss ratio\"<\/code>, <\/code><\/div>\n
(1-(<\/code>sum<\/code>(getmisses)\/ (<\/code>sum<\/code>(gets)+<\/code>sum<\/code>(getmisses))))*100 <\/code>\"Hit ratio\"<\/code><\/div>\n
from<\/code> v$rowcache <\/code><\/div>\n
where<\/code> gets+getmisses <>0 <\/code><\/div>\n
group<\/code> by<\/code> parameter, gets, getmisses ;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u76d1\u63a7 SGA **\u4eab\u7f13\u5b58\u533a\u7684\u547d\u4e2d\u7387\uff0c\u5e94\u8be5\u5c0f\u4e8e1%<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n<\/td>\n
\n
\n
select<\/code> sum<\/code>(pins) <\/code>\"Total Pins\"<\/code>, <\/code>sum<\/code>(reloads) <\/code>\"Total Reloads\"<\/code>, <\/code><\/div>\n
sum<\/code>(reloads)\/<\/code>sum<\/code>(pins) *100 libcache <\/code><\/div>\n
from<\/code> v$librarycache;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u76d1\u63a7 SGA \u4e2d\u91cd\u505a\u65e5\u5fd7\u7f13\u5b58\u533a\u7684\u547d\u4e2d\u7387\uff0c\u5e94\u8be5\u5c0f\u4e8e1%<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n<\/td>\n
\n
\n
SELECT<\/code> name<\/code>, gets, misses, immediate_gets, immediate_misses, <\/code><\/div>\n
Decode(gets,0,0,misses\/gets*100) ratio1, <\/code><\/div>\n
Decode(immediate_gets+immediate_misses,0,0, <\/code><\/div>\n
immediate_misses\/(immediate_gets+immediate_misses)*100) ratio2 <\/code><\/div>\n
FROM<\/code> v$latch <\/code>WHERE<\/code> name<\/code> IN<\/code> (<\/code>'redo allocation'<\/code>, <\/code>'redo copy'<\/code>);<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u76d1\u63a7\u5185\u5b58\u548c\u786c\u76d8\u7684\u6392\u5e8f\u6bd4\u7387\uff0c\u6700\u597d\u4f7f\u5b83\u5c0f\u4e8e .10<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n<\/td>\n
\n
\n
SELECT<\/code> name<\/code>, value <\/code><\/div>\n
FROM<\/code> v$sysstat <\/code><\/div>\n
WHERE<\/code> name<\/code> IN<\/code> (<\/code>'sorts (memory)'<\/code>, <\/code>'sorts (disk)'<\/code>) ;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u76d1\u63a7\u5b57\u5178\u7f13\u51b2\u533a<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n
2<\/div>\n<\/td>\n
\n
\n
SELECT<\/code> SUM<\/code>(GETS) <\/code>\"DICTIONARY GETS\"<\/code>,<\/code>SUM<\/code>(GETMISSES) <\/code>\"DICTIONARY CACHE GET MISSES\"<\/code><\/div>\n
FROM<\/code> V$ROWCACHE ;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u7cfb\u7edf\u7528\u6237\u5efa\u5728system\u8868\u7a7a\u95f4\u4e2d\u7684\u8868”>\u975e\u7cfb\u7edf\u7528\u6237\u5efa\u5728SYSTEM\u8868\u7a7a\u95f4\u4e2d\u7684\u8868<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n<\/td>\n
\n
\n
SELECT<\/code> owner,table_name <\/code><\/div>\n
FROM<\/code> DBA_TABLES<\/code><\/div>\n
WHERE<\/code> tablespace_name <\/code>in<\/code>(<\/code>'SYSTEM'<\/code>,<\/code>'USER_DATA'<\/code>) <\/code>AND<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>owner <\/code>NOT<\/code> IN<\/code>(<\/code>'SYSTEM'<\/code>,<\/code>'SYS'<\/code>,<\/code>'OUTLN'<\/code>, <\/code>'ORDSYS'<\/code>,<\/code>'MDSYS'<\/code>,<\/code>'SCOTT'<\/code>, <\/code>'HOSTEAC'<\/code>);<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u6027\u80fd\u6700\u5dee\u7684SQL<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n<\/td>\n
\n
\n
SELECT<\/code> * <\/code>FROM<\/code> ( <\/code>SELECT<\/code> PARSING_USER_ID EXECUTIONS,SORTS,COMMAND_TYPE,DISK_READS,sql_text <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>FROM<\/code> v$sqlarea <\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>ORDER<\/code> BY<\/code> disk_reads <\/code>DESC<\/code>) <\/code><\/div>\n
WHERE<\/code> ROWNUM<100;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u8bfb\u78c1\u76d8\u6570\u8d85100\u6b21\u7684sql<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n<\/td>\n
\n
\n
select<\/code> * <\/code>from<\/code> sys.v_$sqlarea <\/code>where<\/code> disk_reads>100;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u6700\u9891\u7e41\u6267\u884c\u7684sql<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n<\/td>\n
\n
\n
select<\/code> * <\/code>from<\/code> sys.v_$sqlarea <\/code>where<\/code> executions>100;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u67e5\u8be2\u4f7f\u7528CPU\u591a\u7684\u7528\u6237session<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n
6<\/div>\n<\/td>\n
\n
\n
select<\/code> a.sid,spid,status,substr(a.program,1,40) prog,a.terminal,osuser,value\/60\/100 value <\/code><\/div>\n
from<\/code> v$session a,v$process b,v$sesstat c <\/code><\/div>\n
where<\/code> c.statistic#=12 <\/code>and<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>c.sid=a.sid <\/code>and<\/code><\/div>\n
\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/code>a.paddr=b.addr <\/code><\/div>\n
order<\/code> by<\/code> value <\/code>desc<\/code>;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

\u5f53\u524d\u6bcf\u4e2a\u4f1a\u8bdd\u4f7f\u7528\u7684\u5bf9\u8c61\u6570<\/h1>\n
\n
\n\n\n\n
\n
1<\/div>\n
2<\/div>\n
3<\/div>\n
4<\/div>\n
5<\/div>\n<\/td>\n
\n
\n
SELECT<\/code> a.sid,s.terminal,s.program,<\/code>count<\/code>(a.sid) <\/code><\/div>\n
FROM<\/code> V$ACCESS a,V$SESSION s<\/code><\/div>\n
WHERE<\/code> a.owner <> <\/code>'SYS'<\/code>AND<\/code> s.sid = a.sid <\/code><\/div>\n
GROUP<\/code> BY<\/code> a.sid,s.terminal,s.program<\/code><\/div>\n
ORDER<\/code> BY<\/code> count<\/code>(a.sid) ;<\/code><\/div>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Temp\u8868\u7a7a\u95f4\u4e0a\u8fdb\u7a0b\u7684\u67e5\u8be2 1 2 3 4 5 select a.tablespace, b.sid, b.s […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3530","post","type-post","status-publish","format-standard","hentry","category-bigdata"],"_links":{"self":[{"href":"http:\/\/switch.linesno.com\/index.php?rest_route=\/wp\/v2\/posts\/3530","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/switch.linesno.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/switch.linesno.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/switch.linesno.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/switch.linesno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=3530"}],"version-history":[{"count":1,"href":"http:\/\/switch.linesno.com\/index.php?rest_route=\/wp\/v2\/posts\/3530\/revisions"}],"predecessor-version":[{"id":3531,"href":"http:\/\/switch.linesno.com\/index.php?rest_route=\/wp\/v2\/posts\/3530\/revisions\/3531"}],"wp:attachment":[{"href":"http:\/\/switch.linesno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3530"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/switch.linesno.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3530"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/switch.linesno.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3530"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}