How to fix Error 2752 on Windows Server 2025 / Windows 11

by

Why This Error Happens

Error 2752 occurs when the seed value specified for an IDENTITY column falls outside the valid range of the column’s declared data type, such as assigning a seed of 500 to a tinyint column (max 255) or using a decimal value for an integer-based type. This typically happens during CREATE TABLE or ALTER TABLE statements where the IDENTITY(seed, increment) property is manually defined with incompatible values. It can also surface after a database migration or restore where collation or schema changes altered the expected data type boundaries for the identity column.

Step-by-Step Resolution Guide

Step 1: Identify the Column’s Data Type and Valid Range

  • Open SQL Server Management Studio (SSMS) 21 and run EXEC sp_help 'YourTableName'; to inspect the column definition.
  • Check the data type (tinyint, smallint, int, bigint, decimal, etc.) and note its minimum/maximum allowable values.
  • Confirm whether the seed value you intended to use actually fits within that range.

Step 2: Correct the IDENTITY Seed Value in the Script

  • Open the original CREATE TABLE or ALTER TABLE script in SSMS or Azure Data Studio.
  • Adjust the seed to a valid value, for example: IDENTITY(1,1) instead of IDENTITY(500,1) for a tinyint column.
  • If the seed must stay large, change the column’s data type to a larger integer type (e.g., int or bigint) using ALTER TABLE YourTable ALTER COLUMN YourColumn bigint;.

Step 3: Reseed the Identity Value Using DBCC CHECKIDENT

  • If the table already exists and only the current seed is invalid, run: DBCC CHECKIDENT ('YourTableName', RESEED, NewValidSeedValue);
  • Ensure NewValidSeedValue is within the bounds of the column’s data type.
  • Re-run the insert operation to confirm the seed now increments correctly.

Step 4: Rebuild the Table if Schema Changes Are Required

  • If the data type itself is the root cause, create a new table with the corrected data type and seed definition.
  • Migrate data using INSERT INTO NewTable SELECT * FROM OldTable;, then rename tables using sp_rename.
  • Drop the old table only after verifying data integrity in the new one.

Alternative or Verification Steps

  • Run SELECT IDENT_CURRENT('YourTableName'), IDENT_SEED('YourTableName'), IDENT_INCR('YourTableName'); to confirm the seed, increment, and current identity values are all valid and consistent with the column type.
  • If the error persists after reseeding, check for any Linked Server or replication scripts that might be pushing an out-of-range seed value during synchronization jobs.