How will search engines react to the complete replacement of information in the database?

Question

Google

Good afternoon. Interested in the reaction of search engines to the following actions. There is a directory site, in which more than 130,000 entries are indexed, but most of the data is no longer relevant. Now we want to upload a new database (about 300 thousand companies). How will search engines react if we delete the entire database and upload a new one. The content in the new database is unique, the number of duplicates is minimal.
PS Thanks in advance for your reply.

Answer 1

changing content for a specific URL - the URL leaves the index and hits on a general basis
, therefore it is always better not to replace, but to supplement

Answer 2

It all depends on how the architecture of your site is arranged and how often the robot comes to interrogate you.
If the content has not changed for a long time, then you will wait a long time and hard to update the issue.
If your content is unique, then it will rank fairly high in the SERPs.
If your content is completely replaced, the robot will index it and you will be in the search results after updating for new keywords (new content). And how high depends on the keywords, their frequency and real uniqueness.