winform如何拿到一个服务器中所有数据库名称

/// <summary>

/// 获得目标服务器所有数据库名

/// </summary>

/// <param name="serverName"></param>

/// <param name="userName"></param>

/// <param name="password"></param>

public void getDataBaseNameList(string serverName, string userName, string password)

{

SQLDMO.Application sqlApplication = new SQLDMO.ApplicationClass()

SQLDMO.SQLServer sqlServer = new SQLDMO.SQLServerClass()

sqlServer.Connect(serverName, userName, password) // 连接服务器

foreach (SQLDMO.Database databBase in sqlServer.Databases)

{

if (databBase.Name != null)

{

this.DataBaseTreeView.Nodes.Add(databBase.Name)

getDataBaseTableList(serverName, userName, password, databBase.Name)

}

}

}

/// <summary>

/// 加载数据库中表

/// </summary>

/// <param name="serverName">服务器名</param>

/// <param name="userName">用户名</param>

/// <param name="password">密码</param>

/// <param name="dataBaseName">数据库名</param>

private void getDataBaseTableList(string serverName, string userName, string password, string dataBaseName)

{

SQLDMO.SQLServer Server = new SQLDMO.SQLServerClass()

//连接到服务器

Server.Connect(serverName, userName, password)

//对所有的数据库遍历，获得指定数据库

for (int i = 0i <Server.Databases.Counti++)

{

//判断当前数据库是否是指定数据库

if (Server.Databases.Item(i + 1, "dbo").Name == dataBaseName)

{

//获得指定数据库

SQLDMO._Database db = Server.Databases.Item(i + 1, "dbo")

//获得指定数据库中的所有表

for (int j = 0j <db.Tables.Countj++)

{

this.DataBaseTreeView.Nodes[i].Nodes.Add(db.Tables.Item(j + 1, "dbo").Name)

}

}

}

}

/// <summary>

/// 获得表中所有列名

/// </summary>

/// <param name="serverName">服务器名</param>

/// <param name="userName">用户名</param>

/// <param name="password">密码</param>

/// <param name="tableName">表名</param>

/// <param name="dataBaseName">数据库名</param>

/// <returns></returns>

public string getRowListFromTable(string serverName, string userName, string password, string tableName, string dataBaseName)

{

string result = string.Empty

string connectionString = string.Empty

connectionString += "server=" + serverName

connectionString += "Pwd=" + password

connectionString += "UID=" + userName

connectionString += "Database=" + dataBaseName

string commandString = string.Empty

commandString += "select name from syscolumns where id=object_id('"

commandString += tableName

commandString += "')"

SqlConnection sqlConnection = new SqlConnection(connectionString)

SqlCommand sqlCommand = new SqlCommand(commandString, sqlConnection)

SqlDataAdapter dataAdapter = new SqlDataAdapter(commandString, sqlConnection)

DataSet dataSet = new DataSet()

dataAdapter.Fill(dataSet)

DataTable dataTable = dataSet.Tables[0]

// DataTable dataTable = sqlConnection.GetSchema("Tables")

foreach (DataRow row in dataTable.Rows)

{

result += row[0].ToString() + "-"

}

if (result != null)

{

return result

}

else

{

return "0"

}

}

常用工具有：phpMyAdmin，或者Navicat，

或者在mysql文件下的命令提示符中输入：

mysqlbinmysql

-h主机地址

-u

用户名

－p

用户密码//登录

show

databases//显示数据库名

use

dataname；//显示数据库中的表

show

tables；

查询mysql中所有数据库名称

一，这种方法像执行普通的SQL语句一下，sql如下：

SELECT `SCHEMA_NAME`

FROM `information_schema`.`SCHEMATA`

二，

List<String>list=new ArrayList<String>()

//String sql="SELECT SCHEMA_NAME FROM information_schema.SCHEMATA"

try{

//Statement st=(Statement) conn.createStatement()

DatabaseMetaData dmd=(DatabaseMetaData) conn.getMetaData()

ResultSet rs=dmd.getCatalogs()

while(rs.next()){

list.add(rs.getString("TABLE_CAT"))

}

}catch(SQLException e){

e.printStackTrace()

}

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