access mysql oracle数据库_Oracle Access 数据库连接 使用
直接代碼吧:
///
/// Oracle數(shù)據(jù)庫(kù)連接
///
/// 數(shù)據(jù)庫(kù)連接串,例如:(DESCRIPTION =(ADDRESS_LIST =(ADDRESS = (PROTOCOL = TCP)(HOST = IP)(PORT = *)))(CONNECT_DATA =(SERVICE_NAME = *)))
/// 用戶名
/// 用戶密碼
/// Oracle數(shù)據(jù)庫(kù)連接對(duì)象
private static OracleConnection ConnectOracle(string path, string user, string psw)
{
OracleConnection oracleConn = new OracleConnection();
string connectionStr = string.Format("Data Source={0};User Id={1};Password={2};", path, user, psw);
oracleConn.ConnectionString = connectionStr;
return oracleConn;
}
///
/// Access數(shù)據(jù)庫(kù)連接
///
/// 數(shù)據(jù)庫(kù)連接串,例如:@"D:\qingdan.accdb;"
/// Access版本,true為高于2007版
/// Access數(shù)據(jù)庫(kù)連接對(duì)象
private static OleDbConnection ConnectOracle(string path,bool flag)
{
OleDbConnection accessConn = null;
if (string.IsNullOrWhiteSpace(path) || !File.Exists(path))
{
MessageBox.Show("Acess數(shù)據(jù)庫(kù)文件不存在", "錯(cuò)誤提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
return accessConn;
}
string conStr = null;
if (flag)
{
conStr = "Provider=Microsoft.Ace.OleDb.12.0;";
conStr += "Data Source=" + path;
conStr += ";Persist Security Info=False;";
}
else
{
conStr = "Provider=Microsoft.Jet.OLEDB.4.0;";
conStr += "Data Source=" + path;
}
accessConn = new OleDbConnection(conStr);
return accessConn;
}
以上是建立數(shù)據(jù)庫(kù)連接的方法。
對(duì)Oracle數(shù)據(jù)庫(kù)的查詢操作方法如下:
string sqlTest = "";//此處為查詢SQL
m_dsSet = new DataSet();//查詢結(jié)果集合
OracleDataAdapter command = new OracleDataAdapter(sqlTest, m_oracleConn);
command.Fill(m_dsSet, "ds");
對(duì)Access數(shù)據(jù)庫(kù)操作:
OleDbCommand dbCommand = new OleDbCommand();
dbCommand.Connection = m_accessConn;//連接串
dbCommand.Transaction = m_accessConn.BeginTransaction();
dbCommand.CommandText ="";//操作命令SQL
dbCommand.ExecuteNonQuery();
dbCommand.Transaction.Commit();
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