试图将Guid’s保存在来自C#(.NET)的
MySQL数据库中.
MySQL列的类型为BINARY(16).有关如何坚持guid以及后来从MysqL获取guid的任何消息？在这里寻找代码答案:-)
解决方法
弄清楚了.这是如何做 …
数据库架构
CREATE TABLE `test` (
`id` BINARY(16) NOT NULL,PRIMARY KEY (`id`)
)
码
string connectionString = string.Format("Server={0};Database={1};Uid={2};pwd={3}","server","database","user","password");
Guid orgId = Guid.NewGuid();
Guid fromDb = Guid.Empty;
using (MysqLConnection conn = new MysqLConnection(connectionString))
{
conn.Open();
using (MysqLCommand cmd = new MysqLCommand("INSERT INTO test (id) VALUES (?id)",conn))
{
cmd.Parameters.Add("id",MysqLDbType.Binary).Value = orgId.ToByteArray();
cmd.ExecuteNonQuery();
}
using (MysqLCommand cmd = new MysqLCommand("SELECT id FROM test",conn))
{
using (MysqLDataReader r = cmd.ExecuteReader())
{
r.Read();
fromDb = new Guid((byte[])r.GetValue(0));
}
}
}
