Online worksheet · 2 of 4

Preserve identity when changing a data model - Online practice 2

Read the information, then answer the questions. An adult may read the instructions aloud. Show your working where asked.

Read before answering

Invented records in tenant T: old lesson O2 and another lesson X2 share title 'Reading'. Submission S2 points to O2; attempt A2 also points to O2. Replacement N2 has new teaching, not proven equivalent. Policy: archive O2 from current navigation, retain historical links, and do not alter X2. No real migration is requested.

Worksheet preview

This exercise is included in the paid course. Full-course fee: GBP 200.00 once. Register and enrol to complete all course exercises and download the course PDFs. Access begins after payment is confirmed.

Already registered? Sign in