如何提取sql語句中綁定變量的值?

咱們在處理sql語句性能問題時,不少時候,提取到的sql語句帶了綁定變量的,不能直接拿來運行,以下的sql語句,直接執行,會報變量沒有賦值之類的錯誤.

SELECT A.RECIPE_ID

FROM CIS_OPD_CLINIC A, TABLE(xxx.STR2LIST(:B1 )) B

WHERE A.RECIPE_ID = B.COLUMN_VALUE

OR A.PARENTID = B.COLUMN_VALUE

ORA-01008: 並不是全部變量都綁定.

那麼這個B1 具體是什麼值呢?

立刻查詢v$sqlarea中的sql_id

SQL> SELECT sql_id, child_number , sql_text FROM v$sql WHERE upper(sql_text) Like '%SELECT A.RECIPE_ID FROM CIS_OPD_CLINIC A, TABLE(xxx.STR2LIST(:B1 )) B WHERE A.RECIPE_ID = B.COLUMN_VALUE OR A.PARENTID = B.COLUMN_VALUE%'

2 ;

SQL_ID CHILD_NUMBER SQL_TEXT

------------- ------------ --------------------------------------------------------------------------------

cn2c9mf5f9xda 0 SELECT sql_id, child_number , sql_text FROM v$sql WHERE upper(sql_text) Like '%

07zdmp13w1zw6 0 SELECT A.RECIPE_ID FROM CIS_OPD_CLINIC A, TABLE(ZLBASE.STR2LIST(:B1 )) B WHERE A

07zdmp13w1zw6 1 SELECT A.RECIPE_ID FROM CIS_OPD_CLINIC A, TABLE(ZLBASE.STR2LIST(:B1 )) B WHERE A

07zdmp13w1zw6 2 SELECT A.RECIPE_ID FROM CIS_OPD_CLINIC A, TABLE(ZLBASE.STR2LIST(:B1 )) B WHERE A

07zdmp13w1zw6 3 SELECT A.RECIPE_ID FROM CIS_OPD_CLINIC A, TABLE(ZLBASE.STR2LIST(:B1 )) B WHERE A

3akum7jd5b8j5 0 SELECT sql_id, child_number , sql_text FROM v$sql WHERE upper(sql_text) Like

bjvppgp4jrfh8 0 SELECT sql_id, child_number , sql_text FROM v$sql WHERE upper(sql_text) Like '

2na7kxsh0msa6 0 select sql_id, address, hash_value, executions, loads, parse_calls, invalidation

8 rows selected

經過如下sql語句察看

SELECT name ,position,datatype_string,was_captured,value_string

FROM v$sql_bind_capture

WHERE sql_id = '&SQLID';

SQL> SELECT name ,position,datatype_string,was_captured,value_string

2 FROM v$sql_bind_capture

3 WHERE sql_id = '&SQLID';

輸入: 07zdmp13w1zw6

SQL>

NAME POSITION DATATYPE_STRING WAS_CAPTURED VALUE_STRING

------------------------------------------------------------ ---------- ------------------------------ ------------ --------------------------------------------------------------------------------

:B1 1 VARCHAR2(2000) NO

:B1 1 VARCHAR2(2000) NO

:B1 1 VARCHAR2(128) NO

:B1 1 VARCHAR2(128) NO

這樣,咱們就已經找到:B1的值,代入原sql中,就能夠正常執行了.

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