How to fix the Oracle error ORA-01188: The block size specified string does not match header block size string?

In this post, you’ll learn more about the Oracle ErrorORA-01188: The block size specified string does not match header block size string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01188: The block size specified string does not match header block size string

Reason for the Error ORA-01188: The block size specified string does not match header block size string

The block size specified in the BLOCKSIZE clause of the CREATE CONTROLFILE statement does not equate to the block size recorded in the log file header.

How to fix the Error ORA-01188: The block size specified string does not match header block size string ?

You can fix this error in Oracle by following the below steps

Specify the correct block size.