如何在vb.net中将文本文件的内容导入mysql表?
我在这一个上搜索了不同的论坛,但仍然没有运气。 我尝试了不同的代码,到目前为止,我的查询如下所示:如何在vb.net中将文本文件的内容导入mysql表?,mysql,vb.net,Mysql,Vb.net,我在这一个上搜索了不同的论坛,但仍然没有运气。 我尝试了不同的代码,到目前为止,我的查询如下所示: Dim query As String query = "LOAD DATA LOCAL INFILE 'C:\swipeimport\A1_20130513.txt' INTO TABLE tbl_entrance_swipe (@var1)" & _ "SET Loc=SUBSTRING(@var1,1,3)," & _ "date=
Dim query As String
query = "LOAD DATA LOCAL INFILE 'C:\swipeimport\A1_20130513.txt' INTO TABLE tbl_entrance_swipe (@var1)" & _
"SET Loc=SUBSTRING(@var1,1,3)," & _
"date=SUBSTRING(@var1,4,8)," & _
"time=SUBSTRING(@var1,12,3)," & _
"temp=SUBSTRING(@var1,16,3)," & _
"id=SUBSTRING(@var1,19,10);"
con.Open()
Dim sql As MySqlCommand = New MySqlCommand(query, con)
Dim i As Integer = sql.ExecuteNonQuery()
If (i > 0) Then
MsgBox("Record is Successfully Inserted")
Else
MsgBox("Record is not Inserted")
End If
con.Close()
K0720130514045501018006D9566
我想将文本文件的内容导入表,我的表有以下字段:
Loc, date, time, temp, id.
文本文件的内容如下所示:
Dim query As String
query = "LOAD DATA LOCAL INFILE 'C:\swipeimport\A1_20130513.txt' INTO TABLE tbl_entrance_swipe (@var1)" & _
"SET Loc=SUBSTRING(@var1,1,3)," & _
"date=SUBSTRING(@var1,4,8)," & _
"time=SUBSTRING(@var1,12,3)," & _
"temp=SUBSTRING(@var1,16,3)," & _
"id=SUBSTRING(@var1,19,10);"
con.Open()
Dim sql As MySqlCommand = New MySqlCommand(query, con)
Dim i As Integer = sql.ExecuteNonQuery()
If (i > 0) Then
MsgBox("Record is Successfully Inserted")
Else
MsgBox("Record is not Inserted")
End If
con.Close()
K0720130514045501018006D9566
其中分项数字如下:
K07 ----> Loc
20130514 ----> date
0455 ----> time
010 ----> temp
18006D9566 ----> id
你能帮忙吗,我不能把这个插入我的表格。我的代码有什么问题?
它只是给出了一个致命的错误。请给我指一下正确的方向。非常感谢您的帮助。多谢各位
编辑:
这是我的连接字符串:
Dim con As MySqlConnection = New MySqlConnection("Data Source=dev;Database=mydb;User ID=root;Password=mypass;")
尝试下面的方法,它将帮助您
Dim filename As String = "C:\swipeimport\A1_20130513.txt"
Dim Query As String
Dim data As String = System.IO.File.ReadAllText(filename)
Dim Loc, _date, time, temp, id As String
Loc = data.Substring(0, 3)
_date = data.Substring(3, 8)
time = data.Substring(11, 4)
temp = data.Substring(15, 3)
id = data.Substring(18, 9)
Query = "INSERT INTO tbl_entrance_swipe VALUES ('" + Loc + "','" + _date + "','" + time + "','" + temp + "','" + id + "')"
Dim con As MySqlConnection = New MySqlConnection("Data Source=dev;Database=mydb;User ID=root;Password=mypass;")
Try
con.Open()
Dim sql As MySqlCommand = New MySqlCommand(Query, con)
sql.ExecuteNonQuery()
MsgBox("Record is Successfully Inserted")
con.Close()
Catch ex As Exception
con.Close()
MsgBox("Record is not Inserted" + ex.Message)
End Try
它还可以帮助人们查看您的连接字符串如果我将文本行存储为列表,性能是否明智?然后执行子字符串?它不会在我的文本文件中插入所有行。它只插入第一行…我必须对所有行重复吗?我应该怎么做才能在所有行中重复?我已将文本行存储为列表,这是否符合性能要求?