public PRelation(int id, PSchema schema, string relationName, IList <PTuple> tupes)
{
this.id = id;
this.schema = schema;
this.relationName = relationName;
this.tupes = tupes;
}
public PAttribute(PAttribute pAttribute)
{
this.AttributeName = pAttribute.AttributeName;
this.Description = pAttribute.Description;
this.id = pAttribute.id;
this.primaryKey = pAttribute.primaryKey;
this.Schema = pAttribute.Schema;
this.Type = pAttribute.Type;
}
public PAttribute(bool primaryKey, int id, string attributeName, PDataType type, string description, PSchema pSchema)
{
this.primaryKey = primaryKey;
this.id = id;
AttributeName = attributeName;
Type = type;
Description = description;
Schema = pSchema;
}
public PAttribute()
{
this.Type = new PDataType();
this.Schema = new PSchema();
}
