Difference between revisions of "lazdbexport"
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'''lazdbexport''' is a package that supplies components to facilitate database export. It is delivered with lazarus and may be installed by using [Package|Install/Uninstall packages]. After install the components are accessible via the [[Data Export tab]]. | '''lazdbexport''' is a package that supplies components to facilitate database export. It is delivered with lazarus and may be installed by using [Package|Install/Uninstall packages]. After install the components are accessible via the [[Data Export tab]]. | ||
It provides a template class for descendants that can provide export of datasets. | It provides a template class for descendants that can provide export of datasets. | ||
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| [[image:trtfexporter.png]] || [[TRTFExporter]] || RTF | | [[image:trtfexporter.png]] || [[TRTFExporter]] || RTF | ||
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− | | [[image:tstandardexportformats.png]] || [[TStandardExportFormats]] || | + | | [[image:tstandardexportformats.png]] || [[TStandardExportFormats]] || |
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| [[image:tfpdataexporter.png]] || [[TFPDataExporter]] || | | [[image:tfpdataexporter.png]] || [[TFPDataExporter]] || | ||
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== Example == | == Example == | ||
See the examples in your FPC source directory $(fpcdir)\source\packages\fcl-db\tests (see [[Databases#Running_FPC_database_tests]]), specifically testdbexport.pas. | See the examples in your FPC source directory $(fpcdir)\source\packages\fcl-db\tests (see [[Databases#Running_FPC_database_tests]]), specifically testdbexport.pas. | ||
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Revision as of 14:01, 12 July 2017
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English (en) │
français (fr) │
lazdbexport is a package that supplies components to facilitate database export. It is delivered with lazarus and may be installed by using [Package|Install/Uninstall packages]. After install the components are accessible via the Data Export tab. It provides a template class for descendants that can provide export of datasets. Also included are various ready-made descendants for:
icon | Component | Description |
---|---|---|
TCSVExporter | CSV | |
TFixedlengthExporter | Fixed length | |
TSQLExporter | SQL | |
TXMLXSDExporter | XML/XSD | |
TSimpleXMLExporter | XML | |
TSimpleJSONExporter | json | |
TFPDbfExport | dbf | |
TTeXExporter | TeX | |
TRTFExporter | RTF | |
TStandardExportFormats | ||
TFPDataExporter |
As indicated, developers can write their own export classes using the export framework. An example of this is the Excel/spreadsheet format exporter in FPSpreadsheet
Import
There is no corresponding import to dataset code in FPC/Lazarus, but there is third party code like dbimport (https://bitbucket.org/reiniero/smalltools/src, directory dbimport).
DbImport is used in the LazSQLX and TurboBird database management tools for importing CSV (like) data into datasets.
Another form of import is the use of TSQLScript; an exported database with TSQLExporter can be imported with the use of TSQLScript.
Example
See the examples in your FPC source directory $(fpcdir)\source\packages\fcl-db\tests (see Databases#Running_FPC_database_tests), specifically testdbexport.pas.