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Blog

How to Load Data Objects With Related Geopoints Using API

In other articles, we have covered: how to declare a geo-to-data relationship in a data table schema and how to create relationships between an object in that schema and geopoints. Of course, both of the operations above can also be accomplished with the API. In this post, we are going to show how to retrieve…

by Mark Piller on September 1, 2019

How to Load Data Objects From the Server With an SQL Query

In other articles, we have reviewed multiple techniques for loading data objects from persistent server-side storage. There is a list of all articles categorized by topic. In this post, we are going to review the API for loading data objects using an SQL query.

by Mark Piller on September 1, 2019

How to Delete Persistent Objects Using Data Service API

Deleting an object in your Backendless Database using the Data Service API is just as easy as creating or updating one. If an object has relations, they are broken up and the related objects are not deleted. The sample below retrieves the first object from a table and deletes it.

by Mark Piller on September 1, 2019

How to Load the First Object From a Data Table Using API

There is an API for loading the very first object created in the table. The first object is determined by the value in the created column – Backendless Database picks the one with the smallest timestamp.

by Mark Piller on September 1, 2019

How to Efficiently Load Large Data Sets in a Mobile App With Data Paging

Data paging is the process of breaking up a larger set of objects into smaller chunks, commonly referred to as pages. Typically paging applies to the results of search queries when the server may return too many objects at once.

by Mark Piller on September 1, 2019

How to Update an Object’s Related Collections Using API

Data objects stored in Backendless Database may have related objects through one-to-one or one-to-many collections. When objects are retrieved on the client-side, these relations are materialized as collections of data in the object’s fields or properties.

by Mark Piller on September 1, 2019

How to Declare Minimum Required Properties in Your Data Classes

In another post, we showed how to update data objects in the persistent storage. In this post, we’ll talk about declaring the minimum required properties needed to update objects.

by Mark Piller on September 1, 2019

How to Save Objects With Relations and Create Dynamic Schema

In this post, we will show how to save an object with relations in Backendless Database. We are using the “code first” approach, which means we will not be creating data tables in the backend. Instead, the code will dictate to the backend what the data schema should look like.

by Mark Piller on September 1, 2019

How to Update Data Objects Using API

Once an object is stored in the Backendless data storage, any of its properties (except for the system ones) can be updated using the data update API. The API works the same way as the initial call for saving the object. To update a property value, simply modify it in the instance representing the saved…

by Mark Piller on September 1, 2019
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