Question

如果我执行以下查询，那么我将收到无效字符。

declare
sql_query varchar2(4000):='delete from ';
begin
for i in (
select table_name,column_name from User_tab_cols where column_name like '%PROFILE_ID' and table_name not like 'GSC%' and table_name not like '%BKP%' order by 1)
loop
sql_query :=sql_query ||i.table_name;
sql_query:=sql_query || ' where '||i.column_name ||' = ' ||32052721 ||';';
execute immediate  sql_query;
commit;
end loop;
end;

请在这个问题上帮助我。

非常感谢你的帮助。

我使用的是Oracle 11.2.0.4.0版本。

Answer 1

我想，你需要为循环的每次迭代启动sql_query。例如，像这样：

declare
sql_query varchar2(4000);
begin
for i in (
select table_name,column_name from User_tab_cols where column_name like '%PROFILE_ID' and table_name not like 'GSC%' and table_name not like '%BKP%' order by 1)
loop
sql_query :='delete from ';
sql_query :=sql_query ||i.table_name;
sql_query:=sql_query || ' where '||i.column_name ||' = 32052721';
execute immediate  sql_query;
commit;
end loop;
end;

Answer 2

试试这个：还有一个＆＃39; ;＆＃39;在你的动态字符串中。

下面：

sql_query：= sql_query || ＆＃39;其中＆＃39; || i.column_name ||＆＃39; =＆＃39; || 32052721 ||＆＃39 ;;＆＃39 ;;

DECLARE
   sql_query   VARCHAR2 (4000) := 'delete from ';
BEGIN
   FOR i
      IN (  SELECT table_name, column_name
              FROM User_tab_cols
             WHERE     column_name LIKE '%PROFILE_ID'
                   AND table_name NOT LIKE 'GSC%'
                   AND table_name NOT LIKE '%BKP%'
          ORDER BY 1)
   LOOP
      sql_query := sql_query || i.table_name;
      sql_query :=
         sql_query || ' where ' || i.column_name || ' = ' || 32052721 ;

      EXECUTE IMMEDIATE sql_query;
       Sql_query:=' ';
      COMMIT;
   END LOOP;
END;

Answer 3

您需要在每个循环上重新初始化查询，并省略尾随分号。

DECLARE
    l_sql_query   VARCHAR2 (2000);
BEGIN
    FOR i IN (  SELECT table_name, column_name
                  FROM user_tab_cols
                 WHERE column_name LIKE '%PROFILE_ID'
                   AND table_name NOT LIKE 'GSC%'
                   AND table_name NOT LIKE '%BKP%'
              ORDER BY 1)
    LOOP
        l_sql_query   := ' delete from ' || i.table_name || ' where ' || i.column_name || ' = ' || 32052721;

        EXECUTE IMMEDIATE l_sql_query;

        COMMIT;
    END LOOP;
END;

查询给出了无效字符（ORA-00911：无效字符）问题

3 个答案: