Working with Query Results
When you run a query (a SELECT
statement) in the console,
the data retrieved from the database are shown in table format in the Result pane of
the Database Console tool window.
Depending on the settings, a new Result tab opens for each query,
or one and the same tab is used.
In the latter case, the results on the tab are updated for each next query.
Use the Result pane to sort, add, edit and remove the data as well as to perform other, associated tasks.
- Hiding or showing the toolbar
- Pinning the Result tab
- Switching between subsets of rows
- Making all rows visible simultaneously
- Navigating to a specified row
- Navigating to related records
- Sorting data
- Reordering columns
- Hiding and showing columns
- Restoring the initial table view
- Using the Structure view to sort data, and hide and show columns
- Using the quick documentation view
- Transposing the table
- Enabling coding assistance for a column
- Modifying cell contents
- Adding a row
- Deleting rows
- Managing database transactions
- Comparing tables
- Copying table data to the clipboard or saving them in a file
- Copying a selection to the clipboard
- Changing data output format
- Saving a LOB in a file
- Updating the table view
- Viewing the query
Hiding or showing the toolbar
To hide or show the toolbar of the Result pane and also that of the Database Console tool window:
Pinning the Result tab
If one and the same tab is used to show your query results, and you get the result that you want to keep, you can pin the tab to the tool window. Do one of the following:
See also, Show query results in new tab.
Switching between subsets of rows
If only a subset of the rows that satisfy the query is currently shown, to switch between the subsets, use:
See also, Making all rows visible simultaneously.
Making all rows visible simultaneously
If you want all the rows that satisfy the query to be shown simultaneously:
- Click on the toolbar of the Database Console tool window.
-
Switch to the page,
specify
0
in the Result set page size field, and click OK. - Click or press Ctrl+F5 to refresh the table view.
See also, Updating the table view and Result set page size.
Navigating to a specified row
To switch to a row with a specified number:
Navigating to related records
If a row references a record in a different table or is referenced in a different table, you can switch to the corresponding table to see the related record or records.
To switch to a referenced row:
- Do one of the following:
- If more than one record is referenced, select the target record in the pop-up that appears.
To switch to a row that references the current one, or to see all the rows that reference the current one:
The options described above can also be accessed by using one of the following:
Sorting data
You can sort table data by any of the columns by clicking the cells in the header row.
Each cell in this row has a sorting marker in the right-hand part and, initially, a cell may look something like this: . The sorting marker in this case indicates that the data is not sorted by this column.
If you click the cell once, the data is sorted by the corresponding column in the ascending order. This is indicated by the sorting marker appearance: . The number to the right of the marker (1 on the picture) is the sorting level. (You can sort by more than one column. In such cases, different columns will have different sorting levels.)
When you click the cell for the second time, the data is sorted in the descending order. Here is how the sorting marker indicates this order: .
Finally, when you click the cell for the third time, the initial state is resorted. That is, sorting by the corresponding column is canceled: .
See also, Restoring the initial table view and Using the Structure view to sort data, and hide and show columns.
Reordering columns
To reorder columns, use drag-and-drop for the corresponding cells in the header row.
See also, Restoring the initial table view.
Hiding and showing columns
To hide a column, right-click the corresponding header cell and select Hide column.
To show a hidden column:
-
Do one of the following:
In the list that appears, the names of hidden columns are shown struck through.
- Select (highlight) the column name of interest and press Space.
- Press Enter or Escape to close the list.
See also, Restoring the initial table view and Using the Structure view to sort data, and hide and show columns.
Restoring the initial table view
Click on the toolbar and select Reset View to restore the initial table view after reordering or hiding the columns, or sorting the data. As a result, the data, generally, becomes unsorted, the columns appear in the order they are defined in the corresponding query, and all the columns are shown.
Using the Structure view to sort data, and hide and show columns
When working with the Result pane, the table structure view is available as the corresponding popup.
The structure view shows the list of all the columns and lets you sort the data as well as hide and show the columns.
To open the structure popup, do one of the following:
In the popup, select the column of interest and do one of the following:
- To sort the data by this column in the ascending order, press Shift+Alt+Up.
- To sort the data in the descending order, press Shift+Alt+Down.
- To cancel sorting by this column, press Ctrl+Shift+Alt+Backspace.
- To hide the column (or show a hidden column), press Space. (The names of hidden columns are shown struck through.)
The shortcuts for sorting table data (Shift+Alt+Up, Shift+Alt+Down and Ctrl+Shift+Alt+Backspace) can be used in the Result pane without opening the structure view.
See also, Sorting data, Hiding and showing columns and Restoring the initial table view.
Using the quick documentation view
The quick documentation view provides details about the values in the selected cell or cells. For example, if a cell contains long text, normally, you can see only its beginning. The whole text is shown in the quick documentation view.
If a cell contains an image, you can see that image in the quick documentation view.
You can also see the records referenced in the current record as well as the records that reference the current one.
If necessary, you can switch to the transposed view. This is when the rows and columns are interchanged. Thus, for a row, the cells are shown one beneath the other.
To open the quick documentation view, press Ctrl+Q or select Quick Documentation from the View or the context menu.
To switch to the transposed view, click Transposed View. See also, Transposing the table.
To close the quick documentation view, press Escape.
Transposing the table
The transposed table view is available. In this view, the rows and columns are interchanged.
To turn this view on or off, click on the toolbar and select Transpose. Alternatively, use the Transpose context menu command.
Enabling coding assistance for a column
You can assign a column one of the supported languages (e.g. SQL, HTML or XML): right-click the corresponding header cell, select Edit As and select the language. As a result, you get coding assistance for the selected language in all the cells of the corresponding column.
You can also assign a language to an individual cell.
Modifying cell contents
You can modify values in the table cells and, if appropriate, upload files.
- To start editing
a value or uploading a file,
do one of the following:
- Double-click the corresponding table cell.
- Right-click the cell and select Edit Value or Edit Maximized from the context menu.
- Select the cell and press F2 or Shift+Enter. In the latter case, the cell will be maximized.
- Select the cell and start typing. Note that in this case the initial cell contents are deleted right away and is replaced with the typed value.
- When in the editing mode, you can:
- Modify the value right in the cell. To start a new line, use Ctrl+Enter. To save the changes, press Enter. To restore an initial value and quit the editing mode, press Escape.
-
Maximize the cell if you need more room for editing.
To do that, press Ctrl+Shift+Alt+M, or
right-click the cell and select Maximize.
When working in a maximized cell, use Enter to start a new line and Ctrl+Enter to save the value. To restore an initial value and quit the editing mode, press Escape.
- Upload a file into the field (e.g. to replace an existing file with a new one). To do that, right-click the cell and select Load File. Then select the necessary file in the dialog that opens.
-
Replace the current value with
null
. To do that, right-click the cell and select Set NULL. - Edit a value in the cell as a fragment in one of the supported languages (e.g. SQL, HTML or XML). To do that, right-click the cell, select Edit As and select the language. As a result, you get coding assistance for the language you have selected.
Adding a row
If on the toolbar is enabled, you can add rows to the table.
- To start adding a row, do one of the following:
- Click on the toolbar.
- Right-click the table and select Add New Row from the context menu.
- Press Alt+Insert.
Note that the context menu Clone Row command (Ctrl+D) can be used as an alternative.
- Enter the values into the cells. For instructions, see Modifying cell contents.
- To save the new row, select Submit New Row from the context menu or press Ctrl+Enter.
Deleting rows
If on the toolbar is enabled, you can delete rows. To do that:
-
Select the row or rows that you want to delete.
Rows are selected by clicking the cells in the column where the row numbers are shown. To select more than one row, use mouse clicks in combination with the Ctrl key.
- Do one of the following:
- Confirm you intention to delete the selected row or rows.
Managing database transactions
The Auto-commit check box, and the Commit and Rollback icons on the toolbar let you manage database transactions.
The Auto-commit check box is used to turn the autocommit mode for the database connection on or off.
In the autocommit mode, each SQL statement is executed in its own transaction that is implicitly committed. Consequently, the SQL statements executed in this mode cannot be rolled back.
(Each change of a value in the table, or adding or deleting a row results in executing an SQL statement.)
If the autocommit mode is off, transactions are committed or rolled back explicitly by means of the Commit () or Rollback () command. Each commit or rollback starts a new transaction which provides grouping for a series of subsequent SQL statements.
In this case, the data manipulations in the transaction scope are committed or rolled back all at once when the transaction is committed or rolled back.
Comparing tables
You can compare the current table with any other table which is open in the table editor or shown in the Database Console tool window. To do that, click on the toolbar and select the table of interest.
The comparison results are shown in the differences viewer.
Copying table data to the clipboard or saving them in a file
- Do one of the following:
- If you are saving the data in a file, select the output format (the extractor), and then specify the file name and location.
If only a subset of rows is currently shown, all the rows that satisfy the corresponding query are copied to the clipboard or saved in a file anyway.
See also, Changing data output format.
Copying a selection to the clipboard
To copy selected cells or rows to the clipboard, press Ctrl+C or select Copy from the main or the context menu.
If the table is shown transposed (see Transposing the table), the range of cells is copied transposed (as shown) if the Allow Transposition option is on and non-transposed (as in the original table) otherwise.
To turn the Allow Transposition option on or off, right-click the table, point to Data Extractor: <current_format> and click Allow Transposition. Alternatively, click on the toolbar and click Allow Transposition.
Changing data output format
When you copy table data to the clipboard (the Copy and Dump Data | To Clipboard commands), unless you change the format, the data are output as Tab-Separated Values (TSV).
To change the output format or to define a new format for the output:
- Do one of the following:
-
Do one of the following:
- To select a different output format, click the name of the format.
- To define a new delimiter-separated values format, or to view or modify the settings for an existing one, click Configure CSV Formats. As a result, the CSV Formats Dialog will open.
Saving a LOB in a file
If a cell contains a binary large object (a.k.a. BLOB or LOB), you can save such a LOB in a file.
- Right-click the cell that contains the LOB of interest and select Save LOB To File.
- In the dialog that opens, specify the name and location of the destination file and click OK.
Updating the table view
To refresh the table view, do one of the following:
- Click on the toolbar.
- Right-click the table and select Reload Page from the context menu.
- Press Ctrl+F5.
Use this function to:
- Synchronize the data shown with the actual contents of the database.
- Apply the Result set page size setting after its change.
Viewing the query
To see the query that was used to generate the table:
-
Click View Query on the toolbar.
If necessary, you can select the query text and copy it to the clipboard (Ctrl+C).
To close the pane where the query is shown, press Escape.