我们在处理sql语句性能问题时,很多时候,提取到的sql语句带了绑定变量的,不能直接拿来运行,如下的sql语句,直接执行,会报变量没有赋值之类的错误.

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: 并非所有变量都绑定.

那么这个B1 具体是什么值呢?

马上查询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

通过以下sql语句察看

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';

输入: 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

这样,我们就已经找到:B1的值,代入原sql中,就可以正常执行了.

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