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145 lines
12 KiB
ReStructuredText
145 lines
12 KiB
ReStructuredText
.. _editgrid:
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***********************************
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`Reviewing and Editing Data`:index:
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***********************************
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To review or modify data, right click on a table or view name in the *Browser* tree control. When the context menu opens, use the *View/Edit Data* menu to specify the number of rows you would like to display in the editor panel.
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.. image:: images/editgrid.png
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:alt: Edit grid window
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To modify the content of a table, each row in the table must be uniquely identifiable. If the table definition does not include an OID or a primary key, the displayed data is read only. Note that views cannot be edited; updatable views (using rules) are not supported.
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The editor features a toolbar that allows quick access to frequently used options, and a work environment divided into two panels:
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* The upper panel displays the SQL command that was used to select the content displayed in the lower panel.
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* The lower panel (the Data Grid) displays the data selected from the table or view.
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**The View/Edit Data Toolbar**
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The toolbar includes context-sensitive icons that provide shortcuts to frequently performed tasks.
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.. image:: images/editgrid_toolbar.png
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:alt: Edit grid toolbar
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Hover over an icon to display a tooltip that describes the icon's functionality.
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+----------------------+---------------------------------------------------------------------------------------------------+-------------+
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| Icon | Behavior | Shortcut |
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+======================+===================================================================================================+=============+
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| *Save* | Use the *Save* icon to save your changes to the currently displayed table contents. | |
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+----------------------+---------------------------------------------------------------------------------------------------+-------------+
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| *Find* | Use options on the *Find* menu to access Search and Replace functionality or to Jump to another | Ctrl/Cmd +F |
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| | line. | |
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+----------------------+---------------------------------------------------------------------------------------------------+-------------+
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| *Copy* | Click the *Copy* icon to copy the currently selected data. | Ctrl+C |
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+----------------------+---------------------------------------------------------------------------------------------------+-------------+
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| *Paste Row* | Click the *Paste Row* icon to paste the content that is currently on the clipboard. | |
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+----------------------+---------------------------------------------------------------------------------------------------+-------------+
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| *Delete Row* | Use the *Delete Row* icon to delete all the selected rows from the output panel. | |
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+----------------------+---------------------------------------------------------------------------------------------------+-------------+
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| *Filter* | Click the *Filter* icon to open a dialog that allows you to write and apply a filter for the | |
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| | content currently displayed in the output panel. Click the down arrow to open the *Filter* drop- | |
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| | down menu and select from pre-defined options: | |
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| | | |
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| | Use options on the *Filter* menu to quick-sort or quick-filter the data set: | |
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| | | |
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| | * Filter: This option opens a dialog that allows you to define a filter. A filter is a | |
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| | condition that is supplied to an arbitrary WHERE clause that restricts the result set. | |
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| | | |
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| | * Remove Filter: This option removes all selection / exclusion filter conditions. | |
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| | | |
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| | * By Selection: This option refreshes the data set and displays only those rows whose | |
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| | column value matches the value in the cell currently selected. | |
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| | | |
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| | * Exclude Selection: This option refreshes the data set and excludes those rows whose | |
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| | column value matches the value in the cell currently selected. | |
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+----------------------+---------------------------------------------------------------------------------------------------+-------------+
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| *No limit* | Use the *No limit* drop-down listbox to specify how many rows to display in the output panel. | |
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| | Select from: *No limit* (the default), *1000 rows*, *500 rows*, or *100 rows*. | |
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+----------------------+---------------------------------------------------------------------------------------------------+-------------+
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| *Execute/Refresh* | Click the *Execute/Refresh* icon to execute the SQL command that is displayed in the top panel. | F5 |
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| | If you have not saved modifications to the content displayed in the data grid, you will be | |
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| | prompted to confirm the execution. To preserve your changes before refreshing the content, click | |
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| | the *Save* toolbar button before executing the refresh. | |
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+----------------------+---------------------------------------------------------------------------------------------------+-------------+
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| *Stop* | Click the *Stop* icon to cancel the execution of the currently running query. | |
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+----------------------+---------------------------------------------------------------------------------------------------+-------------+
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| *Clear History* | Use the *Clear History* drop-down menu to erase the contents of the *History* tab. | |
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+----------------------+---------------------------------------------------------------------------------------------------+-------------+
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| *Download as CSV* | Click the *Download as CSV* icon to download the result set of the current query to a | F8 |
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| | comma-separated list. You can control the CSV settings through | |
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| | *Preferences -> SQL Editor -> CSV output* dialogue. | |
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+----------------------+---------------------------------------------------------------------------------------------------+-------------+
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**The Data Grid**
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The top row of the data grid displays the name of each column, the data type, and if applicable, the number of characters allowed. A column that is part of the primary key will additionally be marked with [PK].
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To modify the displayed data:
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* To change a numeric value within the grid, double-click the value to select the field. Modify the content in the square in which it is displayed.
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* To change a non-numeric value within the grid, double-click the content to access the edit bubble. After modifying the contentof the edit bubble, click the *Save* button to display your changes in the data grid, or *Cancel* to exit the edit bubble without saving.
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To enter a newline character, click Ctrl-Enter or Shift-Enter. Newline formatting is only displayed when the field content is accessed via an edit bubble.
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To add a new row to the table, enter data into the last (unnumbered) row of the table. As soon as you store the data, the row is assigned a row number, and a fresh empty line is added to the data grid.
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To write a SQL NULL to the table, simply leave the field empty. When you store the new row, the will server fill in the default value for that column. If you store a change to an existing row, the value NULL will explicitly be written.
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To write an empty string to the table, enter the special string '' (two single quotes) in the field. If you want to write a string containing solely two single quotes to the table, you need to escape these quotes, by typing \'\'
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To delete a row, press the *Delete* toolbar button. A popup will open, asking you to confirm the deletion.
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To commit the changes to the server, select the *Save* toolbar button. Modifications to a row are written to the server automatically when you select a different row.
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**Geometry Data Viewer**
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If PostGIS is installed, you can view GIS objects in a map by selecting row(s) and clicking the 'View Geometry' button in the column. If no rows are selected, the entire data set will be rendered:
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.. image:: images/geometry_viewer.png
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:alt: Geometry Viewer Button
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You can adjust the layout by dragging the title of the panel. To view the properties of the geometries directly in map, just click the specific geometry:
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.. image:: images/geometry_viewer_property_table.png
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:alt: Geometry Viewer Property Table
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Notes:
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- *Supported data types:* The Geometry Viewer supports 2D and 3DM geometries in EWKB format including `Point, LineString, Polygon MultiPoint, MultiLineString, MultiPolygon and GeometryCollection`.
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- *SRIDs:* If there are geometries with different SRIDs in the same column, the viewer will render geometries with the same SRID in the map. If SRID=4326 the OSM tile layer will be added into the map.
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- *Data size:* For performance reasons, the viewer will render no more than 100000 geometries, totaling up to 20MB.
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- *Internet access:* An internet connection is required for the Geometry Viewer to function correctly.
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**Sort/Filter options dialog**
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You can access *Sort/Filter options dialog* by clicking on Sort/Filter button. This allows you to specify an SQL Filter to limit the data displayed and data sorting options in the edit grid window:
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.. image:: images/editgrid_filter_dialog.png
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:alt: Edit grid filter dialog window
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* Use *SQL Filter* to provide SQL filtering criteria. These will be added to the "WHERE" clause of the query used to retrieve the data. For example, you might enter:
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.. code-block:: sql
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id > 25 AND created > '2018-01-01'
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* Use *Data Sorting* to sort the data in the output grid
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To add new column(s) in data sorting grid, click on the [+] icon.
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* Use the drop-down *Column* to select the column you want to sort.
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* Use the drop-down *Order* to select the sort order for the column.
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To delete a row from the grid, click the trash icon.
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* Click the *Help* button (?) to access online help.
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* Click the *Ok* button to save work.
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* Click the *Close* button to discard current changes and close the dialog.
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