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primary-keys

2 posts

2026-09-21 ef-core ef-core-10 oracle

How to use an Oracle sequence to generate primary keys in EF Core

Map an EF Core key to an Oracle sequence with UseSequence in Oracle.EntityFrameworkCore 10: the DDL and INSERT SQL the provider really emits, how to point at an existing sequence or a legacy trigger, why quoting and HiLo trip people up, and how to move an identity column onto a sequence without ORA-00001.

2026-08-17 ef-core ef-core-11 sql-server

How to generate a primary key from a database sequence on insert in EF Core 11

Move a key off IDENTITY and onto a SQL Server sequence in EF Core 11 with UseSequence: the exact SQL EF emits, why explicit key values suddenly work without IDENTITY_INSERT, the bigint sequence feeding an int column, and the gaps you have to design around.