存储过程的递归限制 0 [重复]

Question

当我尝试在 c# 中调用存储过程时。是返回：

例程 delete_medikalislem 超出递归限制 0（由 max_sp_recursion_depth 变量设置）

delete_medikalislem 程序：

DELETE FROM medikal WHERE islem_id = p_id;

存储参数： 名称：p_id，类型：VARCHAR，长度：25

       using (MySqlConnection connect = new MySqlConnection(connectionString))
           {
             using (MySqlCommand cmd = new MySqlCommand(mw.db_name+ ".delete_medikalislem", connect))
                 {
                    cmd.CommandType = CommandType.StoredProcedure;
                    cmd.Parameters.AddWithValue("p_id", mw.medikalislem[0]);
                    connect.Open();
                    cmd.ExecuteNonQuery();
                    connect.Close();
                 }
            }

我在删除触发器后使用：

BEGIN

DECLARE tl_ integer default 0;
DECLARE usd_ integer default 0;
DECLARE eur_ integer default 0;
DECLARE gbp_ integer default 0;
DECLARE toplam_ integer default 0;

SELECT tl, usd, eur, gbp INTO tl_, usd_, eur_, gbp_ FROM medikalfirmalar WHERE isim = OLD.medikal_isim;
DELETE FROM medikal_caritahsilat WHERE islem_id = OLD.islem_id;
    IF (OLD.birim='TL') THEN
    SET toplam_= tl_ - OLD.tutar;
    UPDATE medikalfirmalar SET tl = toplam_ WHERE isim = OLD.medikal_isim;
    END IF;
    IF (OLD.birim='USD') THEN
    SET toplam_= usd_ - OLD.tutar;
    UPDATE medikalfirmalar SET usd = toplam_ WHERE isim = OLD.medikal_isim;
    END IF;
    IF (OLD.birim='EUR') THEN
    SET toplam_= eur_ - OLD.tutar;
    UPDATE medikalfirmalar SET eur = toplam_ WHERE isim = OLD.medikal_isim;
    END IF;
    IF (OLD.birim='GBP') THEN
    SET toplam_= gbp_ - OLD.tutar;
    UPDATE medikalfirmalar SET gbp = toplam_ WHERE isim = OLD.medikal_isim;
    END IF;
END

我该如何解决？

Answer 1

这只是 SQL 抱怨递归。

您必须明确告诉它递归可以进行多少层。

在程序开始时添加：

SET max_sp_recursion_depth=255;