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Aporeon interview preparation

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EF Core Practical Data Access Labs

Updates & Conflicts

Set-based updates, rowversion conflicts, uniqueness races, and narrow property updates.

4 drillsPractice one at a timeOrdered pathCoding problem

Recommended start

Bulk Session Expiry

Performs a set-based bulk update without loading session entities into the change tracker.

Easy~15 minStep 1 of 4

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4 of 4 shown

1Bulk Session ExpiryRecommended startPerforms a set-based bulk update without loading session entities into the change tracker.Coding problemEasy~15 min.NETASP.NET CoreC#Practice 2Rowversion ConflictUses the client's original rowversion to detect a lost update and return a deliberate conflict response.Coding problemMedium~25 min.NETASP.NET CoreC#Practice 3Unique Email ConflictRelies on a database unique constraint and translates only the expected provider error into a domain conflict.Coding problemMedium~25 min.NETASP.NET CoreC#Practice 4Targeted Property UpdateAttaches a key-only stub and marks one property modified for a narrow update while naming the rules this pattern bypasses.Coding problemMedium~25 min.NETASP.NET CoreC#Practice

Practice order

4 drillsOne at a time

1Bulk Session ExpiryUp next / Easy / ~15 min
2Rowversion ConflictMedium / ~25 min
3Unique Email ConflictMedium / ~25 min
4Targeted Property UpdateMedium / ~25 min