PL/SQL process: issue with wording

问题:

I am trying to create a page process in Oracle APEX 4.1. Specifically, When a button on this page is process submitting the page, I want this PL/SQL query to work. I don't have much of an understanding of PL/SQL and am looking to find out how to figure this issue out.

What I want the query to do:

I would like this page process to loop through each row in the EMPLOYEE table that I have in a database for APEX. For each row, I want to move the username, group and password into their own variables, and then to create an APEX user using the APEX_UTIL_CREATE_USER process. I want this to be done with every employee in the table.

I don't know specifically what is wrong with this PL/SQL, as I have never had to use it before. I would greatly appreciate any help anyone can give me with this. I will show the query and the error message below.

PL/SQL query:

PROCEDURE deploy_employee  (EMP_USERNAME IN EMPLOYEE)  IS  BEGIN    FOR indx IN NVL (EMP_USERNAME.FIRST, 0)                  .. NVL (EMP_USERNAME.LAST, -1)    LOOP      emp_user EMPLOYEE.EMP_USERNAME%TYPE;     emp_pass EMPLOYEE.EMP_PASSWORD%TYPE;     emp_group EMPLOYEE.EMP_GROUP%TYPE;  BEGIN      BEGIN        select EMP_USERNAME into emp_user from EMPLOYEE;       select EMP_PASSWORD into emp_pass from EMPLOYEE;       select EMP_GROUP into emp_group FROM EMPLOYEE;      EXCEPTION        WHEN NO_DATA_FOUND THEN          emp_user := NULL;         emp_pass := NULL;         emp_group := NUL;        END;        APEX_UTIL.CREATE_USER(         p_user_name    => emp_user,         p_web_password => emp_pass,         p_user_group => emp_gorup,       ); END;  END LOOP;  END deploy_employee; 

Error message:

1 error has occurred ORA-06550: line 2, column 1: PLS-00103: Encountered the symbol "PROCEDURE" when expecting one of the following: ( begin case declare end exception exit for goto if loop mod null pragma raise return select update while with <an identifier> <a double-quoted delimited-identifier> <a bind variable> << continue close current delete fetch lock insert open rollback savepoint set sql execute commit forall merge pipe purge The symbol "declare" was substituted for "PROCEDURE" to continue. ORA-065 

The page number is 2.

Once again I would be greatly appreciative of any help I could gain.

回答1:

There are multiple issues with your procedure.

1. You are missing the CREATE keyword, and that's the root cause for the compile time error. PLS-00103.

See the documentation for more details on CREATE PROCEDURE statement to create a standalone stored procedure or a call specification.

EMP_USERNAME IN EMPLOYEE

2. The data type declaration for the IN parameter is incorrect. You need to do it as:

EMP_USERNAME IN EMPLOYEE.EMP_USERNAME%TYPE

3. The FOR LOOP is syntactically incorrect.

FOR indx IN NVL (EMP_USERNAME.FIRST, 0) .. NVL (EMP_USERNAME.LAST, -1)

You could do it as:

SQL> CREATE OR REPLACE   2  PROCEDURE deploy_emp(   3      i_emp emp.empno%type)   4  IS   5    emp_user VARCHAR2(50);   6  BEGIN   7    FOR indx IN   8    (SELECT ename FROM emp   9    )  10    LOOP  11      BEGIN  12        BEGIN  13          SELECT ename INTO emp_user FROM emp WHERE empno = i_emp;  14        EXCEPTION  15        WHEN NO_DATA_FOUND THEN  16          emp_user := NULL;  17        END;  18      END;  19    END LOOP;  20    dbms_output.put_line(emp_user);  21  END deploy_emp;  22  /  Procedure created.  SQL> sho err No errors. 

Now, let's test it and see:

SQL> set serveroutput on SQL> EXEC deploy_emp(7369); SMITH  PL/SQL procedure successfully completed.  SQL> 

回答2:

use CREATE PROCEDURE to create a new stored procedure or EXEC <proc name> to execute it

回答3:

If you whant do all this in a page process, you don't need to create procedure. Put this code in the source of your page process:

BEGIN   FOR indx IN (     select *      from EMPLOYEE   ) LOOP       APEX_UTIL.CREATE_USER(         p_user_name    => indx.EMP_USERNAME,         p_web_password => indx.EMP_PASSWORD,         p_user_group => indx.EMP_GROUP,       );   END LOOP; END; 

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