/// <summary>
/// Adds an INNER JOIN from the results of this sub query to a second table
/// where this tables parent field matched the child field
/// </summary>
/// <param name="table"></param>
/// <param name="parentfield"></param>
/// <param name="childfield"></param>
/// <returns></returns>
public DBJoin InnerJoin(string table, string parentfield, string childfield)
{
DBTable tbl = DBTable.Table(table);
DBField parent = DBField.Field(this.Alias, parentfield);
DBField child = DBField.Field(table, parentfield);
return(InnerJoin(tbl, parent, child));
}
public DBTableSet InnerJoin(string table, string parentfield, Compare op, string childfield)
{
DBTable tref = DBTable.Table(table);
return(this.InnerJoin(tref, DBField.Field(parentfield), op, DBField.Field(childfield)));
}
public static DBTableSet From(string catalog, string owner, string roottable)
{
DBTable tref = DBTable.Table(catalog, owner, roottable);
return(From(tref));
}
public static DBTableSet From(string roottable)
{
DBTable tref = DBTable.Table(roottable);
return(From(tref));
}
/// <summary>
/// begins a new DELETE FROM [catalog].[owner].[table] statement
/// </summary>
/// <param name="table">The name of the table to delete from</param>
/// <param name="owner">The schema owner of the table</param>
/// <returns>A new DBDeleteQuery to support statement chaining</returns>
public static DBDeleteQuery DeleteFrom(string catalog, string owner, string table)
{
DBTable ts = DBTable.Table(catalog, owner, table);
return(DeleteFrom(ts));
}
//
// DBDeleteQuery factory methods
//
#region public static DBDeleteQuery DeleteFrom(string intoTable) + 2 overloads
/// <summary>
/// begins a new DELETE FROM [table] statement
/// </summary>
/// <param name="table">The name of the table to delete from</param>
/// <returns>A new DBDeleteQuery to support statement chaining</returns>
public static DBDeleteQuery DeleteFrom(string table)
{
DBTable ts = DBTable.Table(table);
return(DeleteFrom(ts));
}
public static DBInsertQuery InsertInto(string catalog, string owner, string table)
{
DBTable tbl = DBTable.Table(catalog, owner, table);
return(InsertInto(tbl));
}
/// <summary>
/// Begins a new INSERT INTO [owner].[table] statement
/// </summary>
/// <param name="table">The table to insert the rows on</param>
/// <param name="owner">The schema owner of the table</param>
/// <returns>A new DBInsertQuery to support statement chaining</returns>
public static DBInsertQuery InsertInto(string owner, string table)
{
DBTable ts = DBTable.Table(owner, table);
return(InsertInto(ts));
}
//
// DBInsertQuery factory methods
//
#region public static DBInsertQuery InsertInto(string intoTable) + 3 overloads
/// <summary>
/// Begins a new INSERT INTO [table] statement
/// </summary>
/// <param name="intoTable">The table to insert the rows on</param>
/// <returns>A new DBInsertQuery to support statement chaining</returns>
public static DBInsertQuery InsertInto(string intoTable)
{
DBTable ts = DBTable.Table(intoTable);
return(InsertInto(ts));
}
protected virtual DBClause DoRead(string element, XmlReader reader, XmlReaderContext context)
{
DBClause c = null;
switch (element)
{
case (XmlHelper.Select):
c = DBSelectQuery.Select();
break;
case (XmlHelper.Delete):
c = DBDeleteQuery.Delete();
break;
case (XmlHelper.Update):
c = DBUpdateQuery.Update();
break;
case (XmlHelper.Insert):
c = DBInsertQuery.InsertInto();
break;
case (XmlHelper.Script):
c = DBQuery.Script();
break;
case (XmlHelper.Use):
c = DBUseQuery.Use();
break;
case (XmlHelper.Table):
c = DBTable.Table();
break;
case (XmlHelper.Fields):
c = DBSelectSet.Select();
break;
case (XmlHelper.AField):
c = DBField.Field();
break;
case (XmlHelper.AllFields):
c = DBField.AllFields();
break;
case (XmlHelper.From):
c = DBTableSet.From();
break;
case (XmlHelper.Where):
c = DBFilterSet.Where();
break;
case (XmlHelper.Group):
c = DBGroupBySet.GroupBy();
break;
case (XmlHelper.Order):
c = DBOrderSet.OrderBy();
break;
case (XmlHelper.Assignments):
c = DBAssignSet.Assign();
break;
case (XmlHelper.Values):
c = DBValueSet.Values();
break;
case (XmlHelper.Join):
c = DBJoin.Join();
break;
case (XmlHelper.Function):
c = DBFunction.Function();
break;
case (XmlHelper.Constant):
c = DBConst.Null();
break;
case (XmlHelper.Top):
c = DBTop.Top();
break;
case (XmlHelper.UnaryOp):
c = DBComparison.Not();
break;
case (XmlHelper.Compare):
c = DBComparison.Compare();
break;
case (XmlHelper.Between):
c = DBComparison.Between();
break;
case (XmlHelper.Parameter):
//parameter is a special case.
//we add them to akeyed colection if they are not already registered
//then at the end we set the values at the end
string name = reader.GetAttribute(XmlHelper.Name);
DBParam aparam;
if (context.Parameters.TryGetParameter(name, out aparam))
{
c = aparam;
}
else
{
aparam = DBParam.Param();
aparam.Name = name;
context.Parameters.Add(aparam);
c = aparam;
}
break;
case (XmlHelper.OrderBy):
c = DBOrder.OrderBy();
break;
case (XmlHelper.Calculation):
c = DBCalc.Calculate();
break;
case (XmlHelper.Aggregate):
c = DBAggregate.Aggregate();
break;
case (XmlHelper.ValueGroup):
c = DBValueGroup.Empty();
break;
case (XmlHelper.BooleanOperator):
c = DBBooleanOp.Compare();
break;
case (XmlHelper.Assign):
c = DBAssign.Assign();
break;
case (XmlHelper.InnerSelect):
c = DBSubQuery.SubSelect();
break;
case (XmlHelper.Multiple):
c = DBMultiComparisonRef.Many();
break;
case (XmlHelper.QueryOptionSet):
c = new DBQueryHintOptionSet();
break;
case (XmlHelper.QueryOption):
c = DBQueryHintOption.QueryOption();
break;
case (XmlHelper.CreateSproc):
c = DBCreateProcedureQuery.CreateProcedure();
break;
case (XmlHelper.Declare):
c = DBDeclaration.Declare();
break;
case (XmlHelper.CreateTable):
c = DBCreateTableQuery.Table();
break;
case (XmlHelper.ColumnDefinition):
c = DBColumn.Column();
break;
case (XmlHelper.PrimaryKey):
c = DBPrimaryKey.PrimaryKey();
break;
case (XmlHelper.ForeignKey):
c = DBForeignKey.ForeignKey();
break;
case (XmlHelper.CreateIndex):
c = DBCreateIndexQuery.Index();
break;
case (XmlHelper.CreateView):
c = DBCreateViewQuery.CreateView();
break;
case (XmlHelper.CreateSequence):
c = DBCreateSequenceQuery.Sequence();
break;
case (XmlHelper.DropTable):
c = DBDropTableQuery.DropTable();
break;
case (XmlHelper.DropIndex):
c = DBDropIndexQuery.DropIndex();
break;
case (XmlHelper.DropView):
c = DBDropViewQuery.DropView();
break;
case (XmlHelper.DropSproc):
c = DBDropProcedureQuery.DropProcedure();
break;
case (XmlHelper.DropSequence):
c = DBDropSequenceQuery.DropSequence();
break;
default:
throw XmlHelper.CreateException("The XML data could not be deserialized because the element {1} was not recognised. {0}", reader, null, element);
}
if (c != null)
{
c.ReadXml(reader, context);
}
return(c);
}