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SQL Server Identity Column Reset Guide
databasestar.com/reset-identity-column/Yapay zekadan makale özeti
- What is Identity Column
- Identity column automatically generates unique primary key values
- IDENTITY property can be added to table data type
- Values don't matter as long as they're unique
- Reset Process
- DBCC CHECKIDENT procedure shows current identity value
- Reset requires deleting existing data first
- New data must be inserted after reset
- Large tables can use backup table with gaps
- Important Considerations
- Identity values can have gaps but database doesn't care
- Identity values shouldn't affect row count calculations
- TRUNCATE resets identity to initial seed value
- DELETE resets identity to new seed + current increment