本文介绍了查询以在数据库的所有表中查找值的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我正在搜索表中的特定值,并且有很多表,是否存在查询以在数据库的所有表中找到该值,因此我可以快速找到该值而无需逐一遍历每个表一个.
I am searching for a specific value in the table and there are lot of tables, is there a query to find the value in all the tables of the database so that I can quickly find the value without going through each table one by one.
我已经尝试过
SELECT owner, table_name, column_name FROM all_tab_columns WHERE column_name LIKE '%52871%';
SELECT * from dba_objects WHERE object_name like '%52871%'
推荐答案
您可以搜索使用XML SQL在整个SCHEMA中所有表的所有列中的值:
例如,我要在整个SCOTT
架构的所有表的所有列中搜索值KING
:
For example, I want to search for value KING
in all columns of all the tables in entire SCOTT
schema:
SQL> variable val varchar2(10)
SQL> exec :val := 'KING'
PL/SQL procedure successfully completed.
SQL> SELECT DISTINCT SUBSTR (:val, 1, 11) "Searchword",
2 SUBSTR (table_name, 1, 14) "Table",
3 SUBSTR (column_name, 1, 14) "Column"
4 FROM cols,
5 TABLE (xmlsequence (dbms_xmlgen.getxmltype ('select '
6 || column_name
7 || ' from '
8 || table_name
9 || ' where upper('
10 || column_name
11 || ') like upper(''%'
12 || :val
13 || '%'')' ).extract ('ROWSET/ROW/*') ) ) t
14 ORDER BY "Table"
15 /
Searchword Table Column
----------- -------------- --------------
KING EMP ENAME
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