在所有列,所有表中搜索特定值 [英] Search all columns, all tables for a specific value
本文介绍了在所有列,所有表中搜索特定值的处理方法,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
我知道这是一个重复的问题,但是我找不到重新开始讨论的方法.我试图创建一个存储的过程,它将在所有表的所有列中搜索一个值.这是我到目前为止创建的:
I know this is a duplicate question, but I couldn't find a way to reopen the discussion. Im trying to create a stored proc that will search all columns in all tables for a value. This is what I created so far:
CLEAR SCREEN
SET VERIFY OFF
ACCEPT val CHAR PROMPT 'What value do you want to search for: '
CLEAR SCREEN;
DECLARE
match_count integer;
v_search_string varchar2(4000) := <<val>>;
BEGIN
FOR t IN (SELECT owner,
table_name,
column_name
FROM all_tab_columns
WHERE data_type in ('CHAR', 'VARCHAR2', 'NCHAR', 'NVARCHAR2',
'CLOB', 'NCLOB') )
LOOP
BEGIN
EXECUTE IMMEDIATE
'SELECT COUNT(*) FROM '||t.owner || '.' || t.table_name||
' WHERE '||t.column_name||' = :1'
INTO match_count
USING v_search_string;
IF match_count > 0 THEN
dbms_output.put_line( t.owner || '.' || t.table_name ||' '||t.column_name||' '||match_count );
END IF;
EXCEPTION
WHEN others THEN
dbms_output.put_line( 'Error encountered trying to read ' ||
t.column_name || ' from ' ||
t.owner || '.' || t.table_name );
END;
END LOOP;
END;
/
但是我得到了错误.任何帮助将不胜感激!
but I get errors. Any help would be highly appreciated!!
推荐答案
查看评论:
CLEAR SCREEN
SET VERIFY OFF
ACCEPT val CHAR PROMPT 'What value do you want to search for: '
CLEAR SCREEN;
DECLARE
match_count INTEGER;
v_search_string VARCHAR2(4000) := '&val'; /* this was <<val>> */
BEGIN
FOR t IN (SELECT owner,
table_name,
column_name
FROM all_tab_columns
WHERE data_type IN ('CHAR',
'VARCHAR2',
'NCHAR',
'NVARCHAR2',
'CLOB',
'NCLOB'))
LOOP
BEGIN
EXECUTE IMMEDIATE 'SELECT COUNT(*) FROM ' || t.owner || '.' || t.table_name || ' WHERE ' || t.column_name || ' = :1' INTO match_count USING v_search_string;
IF match_count > 0
THEN
DBMS_OUTPUT.put_line(t.owner || '.' || t.table_name || ' ' || t.column_name || ' ' || match_count);
END IF;
EXCEPTION
WHEN OTHERS
THEN
DBMS_OUTPUT.put_line('Error encountered trying to read ' || t.column_name || ' from ' || t.owner || '.' || t.table_name);
END;
END LOOP;
END;
/
这篇关于在所有列,所有表中搜索特定值的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!
查看全文