利用OracleCommandBuilder实现 datatable与数据库的增删改 - 玉祥平台客服-15087858732

/// <summary>
/// datatable与数据库的增删改的实现
/// </summary>
/// <param name="table"></param>
/// <param name="CommandText">sql语句</param>
/// <param name="key"></param>
/// <param name="tableName"></param>
/// <returns></returns>
public int UpdateAndDeleteTable(DataTable table, string CommandText,string key,string tableName)
{
//更新和新增
OracleCommandBuilder ocb = new OracleCommandBuilder(_oracleDataAdapter);
_oracleDataAdapter.SelectCommand.CommandText = CommandText;
_oracleDataAdapter.InsertCommand = ocb.GetInsertCommand();
int updete=_oracleDataAdapter.Update(table);
//删除：差集删除
DataTable oldTable = this.GetDataTable(CommandText);
var query = oldTable.AsEnumerable().Except(table.AsEnumerable(), DataRowComparer.Default);
if (query.Count()==0)
{
return updete;
}
StringBuilder sb = new StringBuilder();
sb.Append($"delete {tableName} where {key} in(");

foreach (var row in query)
{
sb.Append("'"+row[key].ToString()+"',");
}
sb.Remove(sb.Length - 1, 1);
sb.Append(")");
string sql = sb.ToString();
int delete = ExcuteSql(sql);
return updete+ delete;
}