api:dk11:delphi:gisdbdbx.tgis_dbdbx.sqlbuild_string_tgis_extent_tgis_shapetype_string_string
Table of Contents
TGIS_DbDbx.sqlBuild method
DK11 for Delphi | GisDbDbx.TGIS_DbDbx.sqlBuild | Constructors | Fields | Methods | Properties
Build new SQL layer.
Syntax
Overrides TGIS_DbAbstract.sqlBuild.
// Delphi public procedure sqlBuild( const _path : String; const _extent : TGIS_Extent; const _type : TGIS_ShapeType; const _storage : String; const _layerName : String ); override;
// C++ Builder public: virtual void sqlBuild( const UnicodeString _path, TGIS_Extent* const _extent, TGIS_ShapeType* const _type, const UnicodeString _storage, const UnicodeString _layerName );
Parameters
| Name | Type | Description |
|---|---|---|
| _path | String | path to .ttkls file; if empty the build base on existing parameters SQLParameter; if points to non-existent file then will be treated as a list of CRLF or '\n' deliminated parameters |
| _extent | TGIS_Extent | starting extent of a layer - cannot be zero-sized |
| _type | TGIS_ShapeType | shape type supported by the layer |
| _storage | String | storage type |
| _layerName | String | layer name |
Remarks
If _path was provided but not exists the Access (MSJET) layer will be created in a database named "Layers.mdb". Current layer name will be used. If current name is empty then name will be constructed based on ttkls file name. Internal table name could be canonized to be based only on ASCII characters - in worst case replaced by NAME_xxxx unique identifier.
2020/05/07 01:07