Create a new Database Import Filter
Using tree-filters in the SQL Spreads Designer
Using the selected filter values as parameters in a database query
- Database Filters are created by entering a SQL query that generates the tree structure seen in the image above.
- In the Filter Panel, the text in each top node (Region and YearMonth in the image above) is the name of each filter.
- When a Filter Item is selected, the import data will be reloaded and filtered using the selected Filter Value.
- Database Import Filters can only be used for manually created Database Imports.
NOTE: When exporting data from Excel to SQL Server, you can let SQL Spreads insert the value from a selected filter into a column in the database table.
To insert the value of the selected filter into a column in a table, select the filter name from the Drop Down List used to map your SQL Server table columns in the 'Edit Database Export' dialog.
To create a new Database Import Filter:
- In the SQL Spreads tab in Excel, open the Advanced Setup menu and click the Database Import Filter button.
- The Manage Import Filters will be shown, click New to bring up the Edit Import Filter dialog.
- Enter your filter SQL query for generating the filter items.
- Click OK to go back to the Mange Filter dialog and then click OK again
- The Filter Selection Panel will be shown and the items in your new filter will be loaded. Each separate filter will be shown as a top node in the Filter Selection Panel. If you create several filters, the user has to select one item in each filter to import the data.
- Create your filter using the Advanced Setup > Database Import Filter selection
- Your filter items will be shown in the left side panel in Excel.
- To use the tree-filter in the SQL Spreads Designer, you will have to first select one item in each of your filters. In the example below you must select both a Region item and a YearMonth item:
- Open the SQL Spreads Designer and select your table. When the table is loaded go to the Filters tab and create a new Custom SQL filter:
- In the text box at the bottom, add a filter query in the same format as a WHERE clause in a standard SQL query. For each tree-filter there will be two parameters available to use in your query. Each filter's parameters are named with the filter name plus either “_Code” and “_Text”, eg @Region_Code and @Region_Text.
In the example below only table rows where the table columns RegionID and YearMonthKey match the selected items in the two filters Region and YearMonth will be fetched from the database into Excel:
When a user selects a new item in the filter tree-view, SQL Spreads will re-run the Database Import queries and do a refresh of the data in Excel.
By using the selected filter values as parameters in the Database Import SQL queries, the imported data in the spreadsheet will reflect the selected filter items.
A Filter Item is used as a parameter in a SQL query in the format:
The @FilterName_Text parameter will hold the selected's Text column in the Import Filter query, and the @FilterName_Code parameter will hold the selected item's Code column in the Import Filter query.
To quickly insert the selected filter value into the Database Import SQL, the filters are available in a Drop Down list in the top-right corner of the Database Import dialog.
Select a value in the drop-down List and then click the Insert Parameter button to insert the selected filter item as a parameter in the SQL Query.
First, we create the filter for selecting customer gender:
We start with creating a SQL Query that will return a list of the two gender items 'Female' and 'Male'. In the database, the gender column contains the values 'F' or 'M' so our filter will need to show Female or Male to the user, but use F or M as parameters when filtering the import data.
When creating a filter, you decide which column that should be shown as text and which should be shown as code by adding the names 'AS TEXT' or AS CODE' to the resulting columns. Our query will look like this:
SELECT 'F' AS Code, 'Female' AS Text UNION
SELECT 'M' AS Code, 'Male' AS Text
Click the Setup Filters button in the SQL Spreads tab in Excel, and then click New. Give the filter the name Gender, and add the query and test it by clicking the Execute SQL button.
Click OK and then click New to create our second filter.
Now, we will move up one step in difficulty level and create a SQL Query that will populate our filter pane with the decades that our customers were born in. The query takes the BirthDate and uses the SQL method YEAR() to get the Birth Year. The Birth Year is then divided by ten and multiplied by ten to remove the year value and get only the decade. We would like the text in the filter to be in the format 'From 1960 to 1969'.
Our query would then looks like this:
'From ' + CAST
(YEAR([BirthDate])/10*10 AS VARCHAR) + ' to ' +
CAST(YEAR([BirthDate])/10*10 + 9 AS VARCHAR) AS Text
,YEAR([BirthDate])/10*10 AS Code
ORDER BY YEAR([BirthDate])/10*10
Add the query to the Filter and name the filter BirthYear.
The last thing we have to do is to add a WHERE clause to our Database Import query.
Click Database Import, select your import and click Edit. Now add a filter statement to the end of the query:
YEAR([BirthDate])/10*10 = @BirthYear_Code AND
Gender = @Gender_Code
Click OK twice and then select a value in the filter pane for both BirthYear and Gender. The data in Excel will be refreshed from the SQL Server table and filtered based on the selected filter items
NOTE: When updating your Database Import query, you will see your available filters in the Drop Down list in the upper right corner in the Database Import dialog. To insert a filter as a parameter, place the cursor in your SQL query, select the parameter in the list and click the