Question

stream = System.IO.File.ReadAllBytes("E:\sogam.wav")

str = "INSERT INTO reg (Name,ContentType,Data)VALUES(@Name,@ContentType,@Data)"
Try
    cmd = New OleDbCommand(str, dbcon)
    cmd.Parameters.Add("@Name", OleDbType.Char, 20).Value = "hope1"
    cmd.Parameters.Add("@ContentType", OleDbType.Char, 20).Value = "audio"
    cmd.Parameters.Add("@Data", OleDbType.Binary, 30).Value = stream
    cmd.ExecuteNonQuery()
    MsgBox("inserted")
Catch ex As Exception
    MsgBox("not working")
End Try

以上就是我的代码，它将.wav文件插入数据库中（而Data是二进制数据类型）任何人都可以说如何检索音频文件

Answer 1

很简单：

SELECT
    Data
FROM reg r
WHERE 
    r.ContentType = 'audio
    and r.Name = 'hope1'

如何从数据库中检索音频文件

1 个答案: