我在表中搜索一个特定的值并且有很多表,是否有查询在数据库的所有表中查找值,以便我可以快速找到该值而无需通过每个表一个之一。
我已经尝试了
SELECT owner, table_name, column_name FROM all_tab_columns WHERE column_name LIKE '%52871%';
SELECT * from dba_objects WHERE object_name like '%52871%'
答案 0 :(得分:4)
您可以search for a VALUE in all COLUMNS of all TABLES in an entire SCHEMA使用XML SQL:
例如,我想在整个KING
架构中的所有表的所有列中搜索值SCOTT
:
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