我需要在oracle数据库中搜索特定字符串的所有表,并返回找到该字符串的所有记录。我正在使用SQL Developer。有几个真正有用的脚本和存储过程已经在线发布,提供了一种搜索整个数据库的方法,它们似乎都能够返回表名和找到字符串的列名。我实际上希望看到像select *语句的行,但我希望它适用于我的数据库中的所有表。我想要指出,我是一个非常初学者,我不熟悉高级PL / SQL脚本和数据库概念,所以虽然我已经尝试过但我似乎无法弄明白所以任何输入都会受到赞赏。
这是我试图修改的脚本(别人的解决方案)
declare
l_count number := 0;
l_str varchar2(20) := '%test%';
begin
for rec in (select table_name, column_name
from user_tab_columns
where data_type in ( 'VARCHAR2' , 'VARCHAR', 'CHAR' ) ) loop
execute immediate 'select count(*) from '||rec.table_name||
' where '||rec.column_name||' like '''||l_str||'''' into l_count;
if l_count > 0 then
dbms_output.put_line('Table : '||rec.table_name||' '||rec.column_name);
end if;
end loop;
end;
/
答案 0 :(得分:2)
您是否尝试根据关键字构建完整的数据库搜索?您可以通过以下代码获取表名,表列名和行计数。但是您无法在相同的代码中获取行数据,您可以根据搜索结果获取行数据。
--Set output size
SET serveroutput ON size 1000000
DECLARE
-- var table Name for cursor loop.
t_c1_tname user_tab_columns.table_name%TYPE;
-- var column name for dynamic sql statement.
t_c1_cname user_tab_columns.column_name%TYPE;
-- var string for dynamic sql statement.
t_command VARCHAR2(200);
-- var for your search key word.
l_str varchar2(20) := '%test%';
-- var for dynamic cursor.
t_cid INTEGER;
-- var for total row counts.
t_total_records NUMBER(10);
-- var for stat of executing dynamic sql statement.
stat INTEGER;
--var for each loop row counts.
row_count INTEGER;
-- var for minimum search result, here I set value = 0;
t_limit INTEGER := 0; -- Only show tables with more rows
-- cursor gets all table name, column name.
CURSOR c1 IS select table_name, column_name
from user_tab_columns
where data_type in ( 'VARCHAR2' , 'VARCHAR', 'CHAR' );
BEGIN
t_limit := 0;
OPEN c1;
LOOP
FETCH c1 INTO t_c1_tname,t_c1_cname;
EXIT WHEN c1%NOTFOUND;
-- Here create dynamic sql statement.
t_command := 'SELECT COUNT(0) FROM '||t_c1_tname || ' where ' || t_c1_cname ||' like '''|| l_str||'''';
t_cid := DBMS_SQL.OPEN_CURSOR;
DBMS_SQL.PARSE(t_cid,t_command,DBMS_SQL.native);
DBMS_SQL.DEFINE_COLUMN(t_cid,1,t_total_records);
-- Here execute dynamic sql statement.
stat := DBMS_SQL.EXECUTE(t_cid);
row_count := DBMS_SQL.FETCH_ROWS(t_cid);
-- Here get total row counts for each loop.
DBMS_SQL.COLUMN_VALUE(t_cid,1,t_total_records);
IF t_total_records > t_limit THEN
--Here output results
DBMS_OUTPUT.PUT_LINE(RPAD(t_c1_tname,55,' ')||RPAD(t_c1_cname,55,' ')||
TO_CHAR(t_total_records,'99999999')||' record(s)');
-- here you can insert results into your table.
--INSERT INTO search_db_results VALUES (t_c1_tname,t_c1_cname,t_total_records);
END IF;
DBMS_SQL.CLOSE_CURSOR(t_cid);
END LOOP;
CLOSE c1;
-- COMMIT if you have any insert statement.
-- COMMIT;
END;
/