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Select and load data with a Presto connection

Once you have created a Presto connection, you can select data and load it into a Qlik Sense app or a QlikView document. In Qlik Sense, you load data through the Add data dialog or the Data load editor. In QlikView, you load data through the Edit Script dialog.

Information noteThe SELECT statement does not include a WHERE clause, but one can be added in the Data load editor after the script built automatically in the script panel is inserted there. The SELECT statement for the PrestoDB Connector supports the addition of WHERE clause.

Qlik Sense: Presto data selection properties

Database properties that can be configured
Properties Description
Database Lists the databases configured for Presto. If a database was specified in the Catalog (Project) property of the connection dialog, it will be selected automatically when you open the selection dialog. You can select additional databases when you build the data selection script. After selecting tables and fields from one database, select another database and owner, and the tables and fields you select from that database will be added to the data selection script.
Owner Lists the owners of data sets in the selected database.
Tables

Lists the tables associated with the selected owner.

Selecting a table will cause the table fields to be displayed in the Data preview tab.

Filter tables Displays a field where you can enter filter criteria to search for specific tables.
Data preview

Displays a preview of the fields and data of the selected table.

You can select which data columns to include by checking the box beside the field name. You can also change the field name by clicking on the existing field name. The new name is then used as an alias for the name the field has in the database.

Metadata Displays a table of the fields and whether they are primary keys.
Fields

Lists the fields in each selected table. If the table name check box is selected, all the fields in the table are automatically selected. If you click only the table name, fields are displayed but not selected. They can then be selected individually.

You can also change the field name by clicking on the existing field name. The new name is then used as an alias for the name the field has in the database.

Filter data

Displays a field in which you can enter filter criteria to select a subset of data in the fields you are loading. The Filter data property displays after tables have been selected.

Filter data from an ODBC database

Filter fields Displays a field where you can filter on field names
Hide script/Preview script Shows or hides the load script that is automatically generated when table and field selections are made.
Include LOAD statement

Adds a LOAD statement before the SELECT statement.

Add a LOAD statement to an ODBC connection

Add data

Opens the Associations view of the Data manager. This option is available only when you use Add data.

Allows you add more data sources, fix any errors in your data, and create table associations. This option is available only when you use Add data.

Managing data associations

Insert script Inserts the script displayed in the Data preview panel into the script editor. This option is available only when you use the Data load editor.

QlikView: Presto data selection properties

Database properties that can be configured
Properties Description
Database Lists the databases configured for Presto. If a database was specified in the Catalog (Project) property of the connection dialog, it will be selected automatically when you open the selection dialog. You can select additional databases when you build the data selection query.
Owner Lists the owners of data sets in the selected database.
Objects

Lists the tables associated with the selected owner.

Selecting a table will cause the table fields to be displayed in the Data preview tab.

Fields Lists the fields in each selected object.
Script Displays the load script built from the selected objects and fields.
Preview

Displays a preview of the fields and data of the selected table.

Use the Maximum rows drop-down menu to limit the number of lines included in the preview.

Preceding load

Adds a LOAD statement before the SELECT statement.

Add a LOAD statement to an ODBC connection

OK Inserts the script displayed in the Script panel into the script editor.

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