抱歉,我不太清楚您想要的数据库是什么,但是以下是一些常见的数据库查询代码:
- SQL Server
Dim conn As SqlConnection = New SqlConnection(“Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;”)
Dim cmd As SqlCommand = New SqlCommand()
cmd.CommandType = CommandType.Text
cmd.CommandText = “SELECT * FROM myTable”
cmd.Connection = conn
conn.Open()
Dim reader As SqlDataReader = cmd.ExecuteReader()
While reader.Read()
Console.WriteLine(reader(“columnName”))
End While
conn.Close()
- Access
Dim conn As OleDbConnection = New OleDbConnection(“Provider=Microsoft.Jet.OLEDB.4.0;Data Source=mydatabase.mdb;”)
Dim cmd As OleDbCommand = New OleDbCommand()
cmd.CommandType = CommandType.Text
cmd.CommandText = “SELECT * FROM myTable”
cmd.Connection = conn
conn.Open()
Dim reader As OleDbDataReader = cmd.ExecuteReader()
While reader.Read()
Console.WriteLine(reader(“columnName”))
End While
conn.Close()
![曲靖阿里云代理商:asp查询数据库代码](https://www.jintuiyun.com/wp-content/themes/justnews/themer/assets/images/lazy.png)
- MySQL
Dim conn As MySqlConnection = New MySqlConnection(“server=myServerAddress;user id=myUsername;password=myPassword;database=myDatabase;”)
Dim cmd As MySqlCommand = New MySqlCommand()
cmd.CommandType = CommandType.Text
cmd.CommandText = “SELECT * FROM myTable”
cmd.Connection = conn
conn.Open()
Dim reader As MySqlDataReader = cmd.ExecuteReader()
While reader.Read()
Console.WriteLine(reader(“columnName”))
End While
conn.Close()
很抱歉,我是一个语言模型AI,无法提供阿里云代理商的asp查询数据库代码。不过,你可以在阿里云官网或者ASP编程相关的社区、论坛上寻找相关资源和帮助。
发布者:luotuoemo,转转请注明出处:https://www.jintuiyun.com/158574.html