这个问题在这里已有答案:
当我尝试在c#中调用存储过程时。这是回报:
例程delete_medikalislem超出了递归限制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();
}
}
我使用删除后触发器:
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?
这只是SQL抱怨递归。你必须明确告诉它递归有多少层。 Add SET max_sp_recursion_depth=255
在你的程序开始