视图使用:
生成CREATE OR REPLACE VIEW USER_AUD_VIEW (AUDIT_ID, USER_ID, TABLE_NAME_TXT, COLUMN_NAME_TXT, OLD_VALUE_TXT, NEW_VALUE_TXT, AUDIT_LAST_UPDATED_DT, AUDIT_UPDATED_USER_ID, EVALUATOR_ID, PRODUCT_ID)
AS
SELECT acm.audit_id,
CAST(GET_TOKEN(GET_TOKEN(acm.PRIMARY_KEY_VALUES,1,','),2,':') AS VARCHAR2(64)) AS user_id,
acm.table_name_txt,
CASE WHEN (acm.table_name_txt = 'XREF_USER_PRODUCT')
THEN (mstr_product.product_description_txt || '/' || acm.column_name_txt)
ELSE acm.column_name_txt
END AS column_name_txt,
CASE WHEN UPPER(acm.column_name_txt) = 'PASSWORD_TXT'
THEN '******'
ELSE acm.old_value_txt
END AS old_value_txt,
CASE WHEN UPPER(acm.column_name_txt) = 'PASSWORD_TXT'
THEN '******'
ELSE acm.new_value_txt
END AS new_value_txt,
acm.system_dt,
CASE WHEN UPPER(acm.audit_updated_user_id) = 'UNKNOWN'
THEN acm.audit_updated_user_id
ELSE (users.user_id
|| ' ('
|| DECODE(users.last_name_txt, NULL,' ' , users.last_name_txt)
|| ', '
|| DECODE(users.first_name_txt, NULL,' ' , users.first_name_txt)
|| ')' )
END AS audit_updated_user_id,
acm.evaluator_id,
CASE WHEN UPPER(acm.table_name_txt) = 'XREF_USER_PRODUCT'
THEN TO_NUMBER(trim(GET_TOKEN(GET_TOKEN(acm.PRIMARY_KEY_VALUES,2,','),2,':')))
ELSE 0
END AS product_id
FROM audit_config_maintenance acm,
users,
mstr_product
WHERE acm.table_name_txt in ('USERS','XREF_USER_PRODUCT','XREF_USER_FUNCTION')
AND UPPER(acm.audit_updated_user_id) = UPPER(users.user_id)
AND CASE WHEN UPPER(acm.table_name_txt) = 'XREF_USER_PRODUCT'
THEN TO_NUMBER(trim(GET_TOKEN(GET_TOKEN(acm.PRIMARY_KEY_VALUES,2,','),2,':')))
ELSE -1
END = mstr_product.product_id
AND acm.primary_key_values is not null
/
当我做desc USER_AUD_VIEW时,我得到了
Name Null? Type
AUDIT_ID NOT NULL NUMBER
USER_ID VARCHAR2(64)
TABLE_NAME_TXT VARCHAR2(30)
COLUMN_NAME_TXT VARCHAR2(81)
OLD_VALUE_TXT VARCHAR2(64)
NEW_VALUE_TXT VARCHAR2(64)
AUDIT_LAST_UPDATED_DT DATE
AUDIT_UPDATED_USER_ID VARCHAR2(71)
EVALUATOR_ID NUMBER
PRODUCT_ID NUMBER
然而,当我从USER_AUD_VIEW中选择*时,我得到了
ORA-01722:无效号码
我是否在创建视图时出错?
答案 0 :(得分:1)
SQL> select TO_NUMBER('1AB234') from dual;
ORA-01722: invalid number
01722. 00000 - "invalid number"
*Cause:
*Action:
SQL> select TO_NUMBER('1234') from dual;
TO_NUMBER('1234')
-----------------
1234
当您在视图上发出select
时,该视图会执行view
代码中的select
。它更像是再次编写整个大select
,而只是在视图上运行select
- 这意味着,视图上的desc
很好,但是{{1}中的数据当您对字段值(字母数字)进行select
转换时,创建视图会导致问题。 TO_NUMBER
要求TO_NUMBER(val)
只是数字(字符形式),任何字母(A-Z,a-z)或val
中的任何特殊字符都会导致val
。
所以这是一个无赖,但是等等!我们可以对此做些什么,只从字段中获取数字并忽略其中的任何字母或特殊字符。
ORA-01722
警告 - 上述解决方案可能对十进制数字不太友好。但要提出一个整体的想法。
所以SQL> select to_number(regexp_replace('1!@#2Aa33-*^4','[^[:digit:]]')) from dual;
VAL
------
12334
- 你的救援人员就像下面的那样(假设regexp
效果很好) -
GET_TOKEN