PLS-00103：在需要下列之一時出現符號：

Question

我不能在管線18除去錯誤

ERROR：PLS-00103：出現符號 「=」 期待的 一個時以下：恆異常 表LONG_雙裁判焦時間時間戳間隔日期二進制民族性格的nchar

我的方法：

CREATE OR REPLACE PROCEDURE create_schedule(id IN VARCHAR2,ac1st IN ARCHAR2,ac2nd IN VARCHAR2,ac3rd IN VARCHAR2 ,sleeper IN VARCHAR2) 
AS 
BEGIN 
DECLARE 
    query_str VARCHAR2(512); 
    ac1 VARCHAR2(10); 
    ac2 VARCHAR2(10); 
    ac3 VARCHAR2(10); 
    slp VARCHAR2(10); 
    ac1 := 'ac1st'||id; 
    ac2 := 'ac2nd'||id; 
    ac3 := 'ac3rd'||id; 
    slp := 'sleeper'||id; 

    query_str := 'alter table schedule 
    add(:1 number default (:2) not null , 
    :3 number default (:4) not null , 
    :5 number default (:6) not null , 
    :7 number default (:8) not null )'; 
    EXECUTE IMMEDIATE query_str using ac1,ac1st,ac2,ac2nd,ac3,ac3rd,slp,sleeper ; 
commit; 
END create_schedule ; 
/

Answer 1

你有一些錯誤（ARCHAR2參數的BEGIN位置，不需要DECLARE）：

CREATE OR REPLACE PROCEDURE create_schedule(id IN VARCHAR2,ac1st IN VARCHAR2,ac2nd IN VARCHAR2,ac3rd IN VARCHAR2 ,sleeper IN VARCHAR2) 
AS 
    query_str VARCHAR2(512); 
    ac1 VARCHAR2(10); 
    ac2 VARCHAR2(10); 
    ac3 VARCHAR2(10); 
    slp VARCHAR2(10); 
begin 
    ac1 := 'ac1st'||id; 
    ac2 := 'ac2nd'||id; 
    ac3 := 'ac3rd'||id; 
    slp := 'sleeper'||id; 

    query_str := 'alter table schedule 
    add(:1 number default (:2) not null , 
    :3 number default (:4) not null , 
    :5 number default (:6) not null , 
    :7 number default (:8) not null )'; 
    EXECUTE IMMEDIATE query_str using ac1,ac1st,ac2,ac2nd,ac3,ac3rd,slp,sleeper ; 
commit; 
END create_schedule ; 
/