Question

我尝试创建存储过程，然后检查是否存在表，然后重新创建。

create or replace procedure Checktableexist
    (p_tab_name in all_tables.table_name%type)
    authid definer
is
    n pls_integer;
begin

    SELECT count(*) into n FROM all_tables where table_name = p_tab_name;


    if n = 1
    then
        -- no need to specify schema because it's the procedure owner
        execute immediate 'drop table '|| p_tab_name;
    end if;

    execute immediate 'create table p_tab_name as select * from xvz WHERE 1=0';

end Checktableexist;
/

exec Checktableexist（＆＃39; abc1＆＃39;）

我收到以下错误：

BEGIN Checktableexist('abc1'); END;
Error at line 1
ORA-00955: name is already used by an existing object
ORA-06512: at "ADMIN.CHECKTABLEEXIST", line 17
ORA-06512: at line 1

Answer 1

您正在创建表p_tab_name，而不是将其用作变量。把它从字符串文字中删除，你应该没问题：

execute immediate 
'create table ' || p_tab_name || ' as select * from xvz WHERE 1=0';

Oracle错误：ORA-06512：at＆＃34; ADMIN.CHECKTABLEEXIST＆＃34;，第17行

1 个答案: