Oracle数据库在所有表中搜索字符串，返回行数据 [英] Oracle database search all tables for string, return row data

问题描述

我需要在oracle数据库中的所有表中搜索特定的字符串，并返回找到该字符串的所有记录.我正在使用SQL Developer.在线发布了一些真正有用的脚本和存储过程，它们提供了一种搜索整个数据库的方法，它们似乎都能够返回找到字符串的表名和列名.我实际上希望看到行像select *语句，但是我希望它适用于数据库中的所有表.我想指出的是，我非常初级，并且对高级PL/SQL脚本和数据库概念不熟悉，因此尽管尝试了一下，但似乎仍无法弄清楚，因此欢迎您提供任何输入.

I need to search all tables in an oracle database for a specific string and return all the records where that string is found. I am working with SQL Developer. There are several really useful scripts and stored procedures that have been posted online that provide a way to search the entire database and they all seem to be able to return the table name and the column name where the string is found. I actually want to see the rows like a select * statement but I would like it to be for all the tables in my database. I want to note that I am very much a beginner and I'm not familiar with advanced PL/SQL scripting and database concepts so though I've tried and tried I can't seem to figure it out so any input would be appreciated.

这是我尝试修改的脚本(其他人的解决方案)

Here is a script that I was trying to modify (someone else's solution)

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;
/

推荐答案

您是否要基于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，表列名和行数.但是您无法在同一代码中获取行数据，而是可以基于搜索结果获取行数据.

Are you trying to build a full database search based on a key word? You can get table names , table column names and row counts by following code. But you cannot get row data within same code, you can get row data based on search results.

   --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;
    /

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