MySQL存儲過程與光標錯誤

我正在嘗試編寫一個MySQL存儲過程，該過程將（1）將值插入到Employee表中並（2）接收新員工的部門編號，掃描部門工作的任何項目的Project表on和（3）將這些項目與僱員的SSN一起插入到Works_On表中。MySQL存儲過程與光標錯誤

我正試圖用遊標來做到這一點，但仍然遇到我無法弄清楚的語法錯誤。當前的錯誤是在我聲明遊標的地方，但我不知道如何解決它。我已經嘗試了很多東西，希望有人能夠看到這個錯誤。

Use Company 
DELIMITER // 

Create Procedure SP_Insert_NewEmployee 
(
    IN fname varchar(30), 
    IN minit char(1), 
    IN lname varchar(30), 
    IN ssn char(9), 
    IN bdate date, 
    IN address varchar(50), 
    IN sex char(1), 
    IN salary decimal(10,1), 
    IN super_ssn char(9), 
    IN dno int 
) 
Begin 
Declare projectNumber Integer; 
Declare myCursor2 = CURSOR FOR 
    SELECT Pnumber 
    FROM PROJECT 
    Where Dnum = @dno; 

#Insert into Employee 
Insert into EMPLOYEE 
    (
     Fname, 
     Minit , 
     Lname , 
     Ssn , 
     Bdate , 
     Address , 
     Sex, 
     Salary , 
     Super_ssn, 
     Dno 
    ) 
Values 
    (
     $fname , 
     $minit , 
     $lname, 
     $ssn , 
     $bdate , 
     $address , 
     $sex , 
     $salary , 
     $super_ssn , 
     $dno 
    ); 
    END 

#Find projects by new employee's dept 




OPEN myCursor2; 

FETCH NEXT 
    FROM myCursor2 
    INTO 
     projectNumber 


WHILE @@FETCH_STATUS = 0 

BEGIN 
Insert Into WORKS_ON 
Values 
    (
     ssn, 
     projectNumber, 
     0 
    ) 

FETCH NEXT 
FROM myCursor2 
    INTO 
     projectNumber 
END 

CLOSE myCursor2; 
DEALLOCATE myCursor2; 
END 
END 
// 
DELIMITER ;

來源

2016-09-22 cisstudent123

錯誤代碼是1064 .....在遊標附近 – cisstudent123

更好的是添加註釋而不是回答，首先你必須聲明遊標爲'DECLARE cur_saving_acc CURSOR FOR'，代碼搞砸了，所以不知道其他問題不存在 – Susang

這是第一個問題....我混合了MySQL和SQL Server遊標語法。謝謝！ – cisstudent123

我們根據我的要求取消了您的問題，所以您不會在那裏混淆。你的代碼有幾個語法錯誤。有些人只是編造了sql，其他人卻錯過了逗號和錯誤的美元符號。希望這有助於。

USE Company; 
DROP PROCEDURE IF EXISTS SP_Insert_NewEmployee; 
DELIMITER // 
CREATE PROCEDURE SP_Insert_NewEmployee 
(
    IN fname varchar(30), 
    IN minit char(1), 
    IN lname varchar(30), 
    IN ssn char(9), 
    IN bdate date, 
    IN address varchar(50), 
    IN sex char(1), 
    IN salary decimal(10,1), 
    IN super_ssn char(9), 
    IN dno int 
) 
Begin 
DECLARE done INT DEFAULT FALSE; 
Declare projectNumber Integer; 
Declare myCursor2 CURSOR FOR SELECT Pnumber FROM PROJECT Where Dnum = dno; 

#Insert into Employee 
Insert into EMPLOYEE 
    ( Fname, 
     Minit , 
     Lname , 
     Ssn , 
     Bdate , 
     Address , 
     Sex, 
     Salary , 
     Super_ssn, 
     Dno 
    ) 
Values 
    ( fname , 
     minit , 
     lname, 
     ssn , 
     bdate , 
     address , 
     sex , 
     salary , 
     super_ssn , 
     dno 
    ); 

#Find projects by new employee's dept 

OPEN myCursor2; 

do_something: LOOP 
    FETCH myCursor2 INTO projectNumber; 
    IF done THEN 
     LEAVE do_something; 
    END IF; 
    Insert Into WORKS_ON Values (ssn,projectNumber,0); 
END LOOP; 

CLOSE myCursor2; 

END // 
DELIMITER ;

請仔細閱讀手冊頁：CURSORS。

來源

2016-09-22 06:25:56 Drew

MySQL存儲過程與光標錯誤

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