Learn more about MySQL auto_increment AWS DSM from our experts. Our AWS Support team is here to help you with your questions and concerns.

AWS DMS MySQL auto_increment | About

AWS DMS, short for Database Migration Service is a service offered by Amazon Web Services.

It lets us migrate databases from different sources to AWS database solutions. Furthermore, when we migrate MySQL databases with AWS DMS, we have to consider the auto_increment feature as well.

In MySQL, the auto_increment attribute generates unique values for a column. This is useful for primary key purposes.

In fact, when we migrate a MySQL database via AWS DMS, the auto_increment attribute depends on the migration task settings and the target database.

According to our experts, when we migrate to a MySQL target database via AWS DMS, the auto_increment attribute is maintained for the migrated tables by default.

In other words, the auto_increment column values are preserved during the migration process. Furthermore, AWS DMS ensures that the auto_increment values in the target database are the same as in the source database.

However, in certain cases, we may want to alter the behavior of the auto_increment attribute during migration. This is where AWS DMS comes in handy. It offers options to customize the handling of auto_increment columns through task settings. Let’s take a look at some examples:

• We can specify a starting value for the auto_increment column in the target database by setting the AutoIncrementColumnValue option in the AWS DMS task settings.
• In case the target database supports sequences, we can disable the auto_increment attribute during migration and use a sequence generator instead.
• If we want to change the behavior of the auto_increment attribute, like changing the increment value or the starting point, we can use the column settings feature of AWS DMS. This lets us modify the properties of specific columns during the migration process.

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Conclusion

In brief, our Support Techs introduced us to the MySQL auto_increment feature in AWS DSM.