The LDP app provides a FOLIO interface for interacting with an LDP database. Currently there is only one page, the Query builder. As the name suggests, it allows you to build queries without having to know or code any SQL.

Choose the schema and table you would like to report on, select the options you would like, click Submit and you will see your results displayed at the bottom of the page. If you would like to export the displayed results you can click on the save (floppy disk) icon and you can download as a CSV file.


The permissions listed below allow you to interact with the LDP app and determine what you can or cannot do within the app. You can assign permissions to users in the Users app. If none of these permissions are assigned to a user, they are unable to see the LDP app or any related information.

The following are all the LDP app permissions:

  • LDP: all permissions: This permission allows the user to see and use the LDP app.
  • Settings (LDP): Can view, create, edit, and remove. This allows users to manage the settings in the Settings app.


Think of schema as the “buckets” in which tables live.

For a fuller explaination of schemas and examples of some defaults included see Library Data Platform - Using schemas.


Tables are where related data lives. Tables belong to a specific schema. With the schema and table selected, the other fields will unlock and update based on the selection.

Filter by column

This is where you may specify constrains to column for data you are wanting to report on.

Show columns

These will be the fields that you want present in your report. By default all columns will be present.

To limit, simply click on the Show Columns drop-down and click on the listed fields. To remove added fields you can either click on the x next to the field name in the box or from the drop-down list, click on the field again to deselect it.

Order by column

By click on the Add ordering criterion you can add a new column to be used to order you results. After clicking you should then see a box for selecting a column, how to order such as ascending, and where to order Null values. If you wish to order on multiple columns you can click the Add ordering criterion again. To remove a column sort click the trashcan icon.

Limit number of results

This is where you can set how many results you would like to have returned.

What can be changed in the Settings app

  • Record limits
    • Default number to show
    • Maximum number to show
    • Maximum number of export
  • Table availability
    • Shows the schema and tables in the connected database and allows tables to be “turned off” from being able to query against them.
Last modified May 11, 2022