using System; using System.Collections.Generic; using System.Data; using System.Data.Common; namespace ZeroLevel.SqlServer { public interface IDbProvider { bool ExistsTable(string tableName); DataTable ExecuteQueryDataTable(string query); DataTable ExecuteQueryDataTable(string query, DbParameter[] par); DataSet ExecuteQuerySqlDataSet(string query); DataSet ExecuteQuerySqlDataSet(string query, DbParameter[] par); object ExecuteScalar(string query); object ExecuteScalar(string query, DbParameter[] par); void ExecuteNonResult(IEnumerable commands); int ExecuteNonResult(string query); int ExecuteNonResult(string query, DbParameter[] par); void LazySelect(string query, DbParameter[] par, Func readHandler, int timeout); } }