我正在使用此查询向表中插入日期:
I'm using this query to insert into a table a date:
DateTime dt = DateTime.Now;
String query = "Insert into "Table1" ("tableDate") values (:date1)";
NpgsqlConnection conn = new NpgsqlConnection(conex.getConnection());
conn.Open();
NpgsqlCommand cmd = new NpgsqlCommand(query, conn);
NpgsqlParameter param = new NpgsqlParameter(":date1",NpgsqlTypes.NpgsqlDbType.Date);
param.Value = dt.ToShortDateString();
cmd.Parameters.Add(param); // <----------Here i get the error
cmd.ExecuteNonQuery();
conn.Close();
这就是我在表中插入任何其他值的方式,它可以工作!所以肯定是日期格式什么的有错误,但是我找不到答案.
And this is how I am inserting in the table any other value and it works! So there must be an error in the date format or something, but I can't find the answer.
别做
param.Value = dt.ToShortDateString();
离开
param.Value = dt;
你正试图在 DateTime 字段中插入一个字符串 - 肯定 PostgreSQL 会抱怨.
You're trying to insert a string into DateTime field - sure PostgreSQL will complain.
如果你想避免丢失时间信息,请使用 NpgsqlTypes.NpgsqlDbType.Timestamp
use NpgsqlTypes.NpgsqlDbType.Timestamp if you want to avoid losing the time information
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