这是否可能使我们可以循环调用其他过程和cal子过程的过程

Question

我正在创建一个过程，该过程在循环中调用另一个过程。另一个过程也有一些条件定义是否在循环中调用子过程。我有一个子过程的问题不在循环中调用。但是主要过程在循环中工作正常。

主要步骤

CREATE PROCEDURE `sale_batch`(IN invno INT)
BEGIN
    /* Varibales */
    declare itemcode int;
    declare inv_no int;
    declare sdate datetime;
    declare itemrate double;
    declare qty double;
    declare c_code double;
    declare finished integer default 0;

    /* Result set */
    DECLARE sale_inv CURSOR FOR  SELECT  salesdtl.itemcode,sales.inv_no,sales.date,salesdtl.itemrate,salesdtl.totalno,sales.customers_code  FROM sales Join salesdtl on (sales.inv_no=salesdtl.inv_no) WHERE sales.inv_no=invno;
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET finished = 1;
    OPEN sale_inv;
    get_records: LOOP
        FETCH sale_inv INTO itemcode,inv_no,sdate,itemrate,qty,c_code;
        IF finished = 1 THEN
            CLOSE sale_inv;
            LEAVE get_records;
        ELSE
            CALL sale_batch_h(itemcode,qty,inv_no,sdate,itemrate,c_code);
        END IF;
    END LOOP;
END

子过程

CREATE `sale_batch_h`(in stockcode INT,in qty double,in invno int,in sdate datetime,in itemrate double,in c_code int)
BEGIN
    /* Varibales */
    declare grn_no int;
    declare prate double;
    declare balqty double;
    declare sold double;
    declare newsold double;
    declare finished integer default 0;

    /* Result set */
    DECLARE sale_inv_h CURSOR FOR  SELECT pinvoiceno,itemrate,(itemqty-soldqty) as balqty,soldqty FROM stockbatch WHERE itemcode=stockcode and (itemqty-soldqty)>0 ORDER BY date LIMIT 0,1;
    DECLARE CONTINUE HANDLER FOR NOT FOUND SET finished = 1;
    OPEN sale_inv_h;
    FETCH sale_inv_h INTO grn_no,prate,balqty,sold;
        IF finished = 1 THEN
            CLOSE sale_inv_h;
        ELSE
            IF balqty >= qty THEN
                INSERT INTO stockbatch_details (pinvoiceno,sinvoiceno,sdate,sqty,srate,ccode,prate,itemcode) values (grn_no,invno,sdate,qty,itemrate,c_code,prate,stockcode);
                SET newsold = sold+qty;
                UPDATE stockbatch SET SoldQty=newsold where pinvoiceno=grn_no;
                INSERT INTO `logs`(command) values ('Single');
            ELSE
                SET newsold = sold+balqty;
                INSERT INTO stockbatch_details (pinvoiceno,sinvoiceno,sdate,sqty,srate,ccode,prate,itemcode) values (grn_no,invno,sdate,qty,itemrate,c_code,prate,stockcode);
                UPDATE stockbatch SET SoldQty=newsold where pinvoiceno=grn_no;
                SET qty = qty-balqty;
                INSERT INTO `logs`(command) values ('Mutliple Calls');
                CALL sale_batch_h(stockcode,qty,invno,sdate,itemrate,c_code);
            END IF;
        END IF;
END