//public OleDbDataReader GetData(string tablename, string select_sql)
//{
// MyDbHelper DbHelper = new MyDbHelper(MyDbHelper.connectstring_prec);
// OleDbDataReader dr;
// dr= DbHelper.ExecuteDataReader(select_sql);
// return dr;
//}
private void CreateTable(string create_sql, string table_date)
{
try
{
MyDbHelper DbHelper = new MyDbHelper(MyDbHelper.connectstring_cardqs_bftb);
int i = Convert.ToInt32(DbHelper.ExecuteScalar("select count(*) from user_tables where upper(table_name)=upper('" + table_date + "')"));
if (i == 1)
{
DbHelper.ExecuteNonQuery("drop table " + table_date);
}
int ret = DbHelper.ExecuteNonQuery(create_sql);
}
catch (Exception ex)
{
MyLog.DbLog(table_date, "CreateTable 发生异常：" + ex.Message);
MyLog.Log("3", "CreateTable 发生异常：" + ex.Message);
}
finally
{
if (DbHelper != null)
{
DbHelper.Dispose();//新加的
}
}
}
public bool GetBF_TABLE(string db_name, string db_connectstring, string sql_db)
{
try
{
DbHelper = new MyDbHelper(MyDbHelper.connectstring_cardqs);
dt = DbHelper.ExecuteDataTable("bf_table", sql_db);
if (dt == null)
{
return(false);
}
if (dt.Rows.Count <= 0)
{
_bf_table = null;
return(true);
}
_bf_table = new BF_TABLE[dt.Rows.Count];
for (int i = 0; i < dt.Rows.Count; i++)
{
_bf_table[i] = new BF_TABLE();
_bf_table[i].tablename = dt.Rows[i][0].ToString().Trim();
_bf_table[i].insert_num = dt.Rows[i][1].ToString().Trim();
_bf_table[i].insert_sql = dt.Rows[i][2].ToString().Trim();
_bf_table[i].select_sql = dt.Rows[i][3].ToString().Trim();
_bf_table[i].create_sql = dt.Rows[i][4].ToString().Trim();
_bf_table[i].drop_sql = dt.Rows[i][5].ToString().Trim();
_bf_table[i].table_date = dt.Rows[i][6].ToString().Trim();
_bf_table[i].pre_tablename = dt.Rows[i][7].ToString().Trim();
_bf_table[i].typeflag = dt.Rows[i][8].ToString().Trim();
DropTable(_bf_table[i].drop_sql, _bf_table[i].pre_tablename);//先删除前一个存在的表或者删除已有数据
if (Convert.ToInt16(_bf_table[i].typeflag) == 2)
{
CreateTable(_bf_table[i].create_sql, _bf_table[i].table_date); //创建一个新表
}
InsertData(_bf_table[i].insert_num, _bf_table[i].insert_sql, _bf_table[i].tablename, _bf_table[i].select_sql, db_connectstring); //查询出数据再插入新表
MyLog.Log("0", DateTime.Now.ToString("yyyyMMdd") + _bf_table[i].tablename + "表备份完成");
}
MyLog.Log("0", DateTime.Now.ToString("yyyyMMdd") + db_name + "数据库所有表都备份完成");
}
catch (Exception ex)
{
MyLog.DbLog("bf_table", "GetBF_TABLE 发生异常：" + ex.Message);
MyLog.Log("3", "GetBF_TABLE 发生异常：" + ex.Message);
return(false);
}
finally
{
if (DbHelper != null)
{
DbHelper.Dispose();//新加的
}
}
MyLog.Log("0", DateTime.Now.ToString("yyyyMMdd") + "数据库所有表都备份完成");
return(true);
}
public static void DbLog(string table, string erreason)
{
string sql; //DateTime.Now.ToString("YYYYmmddHHMMSS.FFF");
sql = "insert into LOG_bf(ERRDATETIME,ERRREASON,relatetable) values('";
sql += DateTime.Now.ToString("yyyyMMddHHmmss.FFF") + "','";
sql += erreason + "','";
sql += table + "')";
try
{
MyDbHelper DbHelper = new MyDbHelper(MyDbHelper.connectstring_cardqs);
DbHelper.ExecuteNonQuery(sql);
}
catch (Exception ex)
{
Log("3", "连接数据库插入日志异常：" + ex.Message);
//MessageBox.Show(ex.Message);
}
}
public void type_flow()
{
try
{
bool b;
DbHelper = new MyDbHelper(MyDbHelper.connectstring_cardqs);
dtable = DbHelper.ExecuteDataTable("bf_dbinform", sql);
if (dtable == null)
{
return;
}
if (dtable.Rows.Count <= 0)
{
_bf_dbinform = null;
return;
}
_bf_dbinform = new BF_DBINFORM[dtable.Rows.Count];
for (int i = 0; i < dtable.Rows.Count; i++)
{
_bf_dbinform[i] = new BF_DBINFORM();
_bf_dbinform[i].db_connectstring = dtable.Rows[i][0].ToString().Trim();
_bf_dbinform[i].dbname = dtable.Rows[i][1].ToString().Trim();
_bf_dbinform[i].dbsql = dtable.Rows[i][2].ToString().Trim();
b = GetBF_TABLE(_bf_dbinform[i].dbname, _bf_dbinform[i].db_connectstring, _bf_dbinform[i].dbsql);
}
}
catch (Exception ex)
{
MyLog.DbLog("bf_dbinform", "type_flow 发生异常：" + ex.Message);
MyLog.Log("3", "type_flow 发生异常：" + ex.Message);
return;
}
finally
{
if (DbHelper != null)
{
DbHelper.Dispose();//新加的
}
}
return;
}
private void InsertData(string insert_num, string insert_sql, string tablename, string select_sql, string db_connectstring)
{
OleDbConnection con = new OleDbConnection(db_connectstring);
con.Open();
OleDbCommand comm = new OleDbCommand(select_sql, con);
OleDbDataReader dbReader = comm.ExecuteReader();
//dbReader = GetData(tablename, select_sql);
string comText;
try
{
MyDbHelper DbHelper = new MyDbHelper(MyDbHelper.connectstring_cardqs_bftb);
while (dbReader.Read())
{
comText = insert_sql;
for (int i = 0; i < int.Parse(insert_num) - 1; i++)
{
comText = comText + "'" + Convert.ToString(dbReader.GetValue(i)).Replace("'", "''") + "',";
}
comText = comText + "'" + Convert.ToString(dbReader.GetValue(int.Parse(insert_num) - 1)) + "')";
DbHelper.ExecuteNonQuery(comText);
}
}
catch (Exception ex)
{
MyLog.DbLog(tablename, "插入数据发生异常：" + ex.Message);
MyLog.Log("3", "插入" + tablename + "数据发生异常：" + ex.Message);
}
finally
{
if (DbHelper != null)
{
DbHelper.Dispose();//新加的
}
}
comm.Dispose();
con.Close();
}
public void DropTable(string drop_sql, string pre_tablename)
{
try
{
MyDbHelper DbHelper = new MyDbHelper(MyDbHelper.connectstring_cardqs_bftb);
int i = Convert.ToInt32(DbHelper.ExecuteScalar("select count(*) from user_tables where upper(table_name)=upper('" + pre_tablename + "')"));
if (i == 1)
{
DbHelper.ExecuteNonQuery(drop_sql);
}
}
catch (Exception ex)
{
MyLog.DbLog(pre_tablename, "DropTable 发生异常：" + ex.Message);
MyLog.Log("3", "DropTable 发生异常：" + ex.Message);
}
finally
{
if (DbHelper != null)
{
DbHelper.Dispose();//新加的
}
}
}