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General Questions

Is SQL LRS a Learning Record Provider (LRP), Learning Management System (LMS), or content store?

No, SQL LRS is strictly a Learning Record Store (LRS), and is not an application that includes its own LRP or LMS. Unlike a Learning Record Provider (LRP), SQL LRS does not produce learning data on its own, and unlike a Learning Management System (LMS), it does not host, distribute, author, or serve as a repository for learning content.

As an LRS, SQL LRS is strictly a database application for xAPI statements, attachments, and documents. It receives, validates, stores, and makes available xAPI data produced by external LRPs or LMSs.

I've used Yet's Cloud LRS products in the past. What are the differences?

If you previously used Yet's Cloud LRS products, it is important to be aware of certain differences:

  • Tenancy is not supported in SQL LRS; the entire database can be considered to be a single default tenant.
  • All operations in SQL LRS are synchronous; async operations are not supported.
  • stored timestamps are not strictly monotonic in SQL LRS; two or more Statements may be assigned the same timestamp if stored in quick succession.
  • If a Statement voids a target Statement that is itself voiding, SQL LRS will accept it upon insertion, though it will not update the state of the target Statement as per the xAPI spec. (The Cloud LRS, on the other hand, will simply reject the voiding Statement.)

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