小编bas*_*592的帖子

我在以下代码中收到“ ORA01006绑定变量在第15行不存在”错误：

DECLARE
  v_search_string varchar2(4000) := 'OK';
  v_query_str VARCHAR2(4000);
  match_count integer;
BEGIN  
  FOR t IN (SELECT owner,
                   table_name, 
                   column_name 
              FROM all_tab_columns
             WHERE data_type in ('CHAR', 'VARCHAR2', 'NCHAR', 'NVARCHAR2') And TABLE_NAME = 'T1' And OWNER = 'O1') 
  LOOP   
    Begin
      v_query_str := 'SELECT COUNT(*) FROM '|| t.table_name || ' WHERE ' || t.column_name || ' Like ''' || '%:1%' || '''';
      dbms_output.put_line(v_query_str);
      EXECUTE Immediate v_query_str
      INTO match_count  
      USING v_search_string; 
      IF match_count >= 0 THEN 
        dbms_output.put_line( t.owner || '.' || t.table_name ||' '||t.column_name||' …