執行過的SQL、正在執行的SQL、消耗資源最多的SQL
阿新 • • 發佈:2019-02-17
一、執行過的SQL
SELECT SQL_ID, HASH_VALUE, ADDRESS, SQL_FULLTEXT,LAST_LOAD_TIME FROM V$SQL ORDER BY LAST_LOAD_TIME DESC; ------------------------------------------------------------------------------------------------- SELECT SQL_ID, HASH_VALUE, ADDRESS, B.SQL_FULLTEXT, B.FIRST_LOAD_TIME FROM V$SQLAREA B ORDER BY B.FIRST_LOAD_TIME DESC;
二、正在執行的SQL
SELECT
SSN.USERNAME, SSN.SID, SSN.SQL_ID,SAA.ADDRESS, SAA.HASH_VALUE, SAA.SQL_FULLTEXT
FROM
V$SESSION SSN, V$SQLAREA SAA
WHERE
SSN.SQL_ADDRESS = SAA.ADDRESS AND SSN.SQL_HASH_VALUE = SAA.HASH_VALUE;
三、讀取磁碟次數最多的SQL
SELECT * FROM ( SELECT SQL_ID,ADDRESS,HASH_VALUE,COMMAND_TYPE, PARSING_USER_ID, PARSING_SCHEMA_NAME, EXECUTIONS, SORTS, DISK_READS, BUFFER_GETS, CPU_TIME, SQL_FULLTEXT FROM V$SQLAREA ORDER BY DISK_READS DESC )WHERE ROWNUM<10 ;
四、消耗CPU時間最多的SQL
SELECT * FROM (
SELECT
SQL_ID,ADDRESS,HASH_VALUE,COMMAND_TYPE, PARSING_USER_ID, PARSING_SCHEMA_NAME, EXECUTIONS, SORTS, DISK_READS, BUFFER_GETS, CPU_TIME, SQL_FULLTEXT
FROM
V$SQLAREA
ORDER BY
CPU_TIME DESC
)WHERE ROWNUM<10 ;
五、執行次數最多的SQL
SELECT * FROM (
SELECT
SQL_ID,ADDRESS,HASH_VALUE,COMMAND_TYPE, PARSING_USER_ID, PARSING_SCHEMA_NAME, EXECUTIONS, SORTS, DISK_READS, BUFFER_GETS, CPU_TIME, SQL_FULLTEXT
FROM
V$SQLAREA
ORDER BY
EXECUTIONS DESC
)WHERE ROWNUM<10 ;