DtoSegment Object

Creating and Maintaining Catalogs and Dictionaries with DTO : DtoSegment Object

DtoSegment Object

This object represents a segment in an index.

Properties

ColumnName	Gets or sets the column name associated with this segment.
Flags	Gets or sets the segment flags. This is an enumerated value. See Segment Flags for a list of possible values.
Number	Gets or sets the 0-based segment number.

Methods

None

Remarks

One or more of these comprise an index. Only 119 segments are allowed per index. Note that the combined size of all the columns in segments of an index cannot be more then 255 bytes.

Example

’ Open dictionary

Dim dictionary as new DtoDictionary

Dim result as DtoResult

result = dictionary.Open("d:\mydemodata")

’ Get Students table

Dim students_table as DtoTable

Set students_table = dictionary.GetTable("Student")

’ Obtain indexes collection from students table

Dim students_idx as DtoIndexes

Set students_idx = students_table.Indexes

’ Delete all the indexes

Dim first_idx as DtoIndex

Set first_idx = students_idx(1)

’ Get DtoSegments collection from first_idx

Dim my_segments as DtoSegments

Set my_segments as first_idx.Segments

’ Get first segment and query column name

Dim first_seg as DtoSegment

Set first_seg = my_segments(1)

Dim colname as String

colname = first_seg.ColumnName