Imports System.Data.SqlClient
Imports System.IO
Module SQL_Module
    Public ConString, ConString2, SQL1 As String
    Public conn As New SqlConnection
    Public cmd As New SqlCommand
    Public dr As SqlDataReader
    Public da As New SqlDataAdapter
    Friend Sub ConnOpen()
        conn.Close() : If conn.State = ConnectionState.Closed Then : conn.ConnectionString = ConString : conn.Open() : End If
    End Sub
    Friend Sub ConnOpen_工程圖庫SQL()
        conn.Close() : If conn.State = ConnectionState.Closed Then : conn.ConnectionString = ConString2 : conn.Open() : End If
    End Sub
    Friend Sub CmdSet_For_DGV()
        cmd.Connection = conn : cmd.CommandText = SQL1 : da.SelectCommand = cmd
    End Sub
    Friend Sub CmdSet_For_dr()
        cmd.CommandText = SQL1 : cmd.Connection = conn : dr = cmd.ExecuteReader
    End Sub
    Friend Sub CmdSet_For_dr_pic()
        Dim fs As FileStream : fs = File.OpenRead(PA49) : Dim picb(fs.Length) As Byte : fs.Read(picb, 0, fs.Length) : fs.Close() : cmd.Parameters.Clear()
        cmd.CommandText = SQL1 : cmd.Parameters.Add("@binary_file", SqlDbType.VarBinary).Value = picb : cmd.Connection = conn : dr = cmd.ExecuteReader
    End Sub
End Module