public QueryExecution(string queryString, ProbDatabase probDatabase)
{
this.selectedRelations = new List <ProbRelation>();
this.selectedAttributes = new List <ProbAttribute>();
this.relationResult = new ProbRelation();
this.probDatabase = probDatabase;
this.queryString = StandardizeQuery(queryString);
this.flagNaturalJoin = false;
}
public ProbDatabase(ProbDatabase probDatabase)
{
this.DBPath = probDatabase.DBPath;
this.DBName = probDatabase.DBName;
this.ConnectString = probDatabase.ConnectString;
this.DataSet = probDatabase.DataSet;
this.Relations = probDatabase.Relations;
this.Queries = probDatabase.Queries;
this.Schemes = probDatabase.Schemes;
}