在光標循環中調用存儲過程，不跳閘繼續處理程序

Question

我正試圖在光標的循環內調用MySQL中的存儲過程。在循環中執行INSERT時，遊標的行爲正確;但如果我嘗試調用存儲過程，則繼續處理程序'設置完成= 1'，並且將在處理第一條記錄後過早退出循環。有關如何解決此問題的任何想法？謝謝。

declare test_cursor cursor for 
     select projectid, projectdesc 
     from tblProjects 
     order by projectdesc;   

DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET done = 1; 

set done = 0; 
open test_cursor; 

repeat 

    fetch test_cursor into wprojectid, wprojectdesc; 

    if not done then 

    insert into tblTest (a, b) values (wprojectid, wprojectdesc); <--this would work 
    call spTest(wprojectid, wprojectdesc, @retrn);         <--this trips the Handler after first loop 

    end if;  

until done end repeat; 

close test_cursor; 

Answer 1

我不確定，但嘗試看看這段代碼是否工作？

declare test_cursor cursor for 
     select projectid, projectdesc 
     from tblProjects 
     order by projectdesc;   

DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET done = 1; 
DECLARE done_holder INT; 


set done = 0; 
open test_cursor; 

repeat 

    fetch trade_cursor into wprojectid, wprojectdesc; 

    if not done then 

    set done_holder = done; 
    insert into tblTest (a, b) values wprojectid, wprojectdesc; 
    call spTest(a, b, @retrn); 
    set done = done_holder; 

    end if;  

until done end repeat; 

close test_cursor; 

Answer 2

我認爲這個問題是在這裏 - '叫spTest（A，B，@retrn）;'，嘗試用這個來改變它 -

CALL spTest(wprojectid, wprojectdesc, @retrn); 

所以，你的代碼可以像這是 -

DECLARE done INT DEFAULT 0; 
    DECLARE wprojectid, wprojectdesc INT; 
    DECLARE test_cursor CURSOR FOR SELECT projectid, projectdesc FROM tblProjects ORDER BY projectdesc; 
    DECLARE CONTINUE HANDLER FOR SQLSTATE '02000' SET done = 1; 

    SET done = 0; 
    OPEN test_cursor; 

    REPEAT 
    FETCH test_cursor INTO wprojectid, wprojectdesc; 
    IF NOT done THEN 
     INSERT INTO tblTest (a, b) VALUES (wprojectid, wprojectdesc); 
     CALL spTest(wprojectid, wprojectdesc, @retrn); 
    END IF; 
    UNTIL done 
    END REPEAT; 
    CLOSE test_cursor;