How do you ensure that the column size in the database is consistent with the text input field at the UI level?

Question

Database

After all, 99% of all written applications are forms for entering data into the database - Web or Vin, of which there are a lot of - from the "Name", "Address" series, etc.
The application grows and there are hundreds of thousands of millions of such fields.
Who does what to get a guarantee that all user input will fit 100% into the columns reserved for them in the database?

Answer 1

I keep 3 domains (static types) in Firebird
D_CODE (varchar 64)
D_STRING (varchar 512)
D_TEXT (blob sub_type text)
there are simply no other string lengths.
When stored on disk, they are compressed by the cunning algorithms of Firebird itself (RLE compression)
. Only the contents of the line are in memory on the client.
Validators are all standard
win-win

Answer 2

No way to get. Business has new requirements, it is necessary to expand the structure.

Answer 3

Appropriate setting of validators at the model level.

Answer 4

To be honest, until this morning I didn’t know that there is a rating on the toaster, I’m even afraid to ask why do you need it?

Answer 5

Ivan : Rating-drocher, karma-drocher - let's already give up our childhood habits of labels. Replace "Ivan" with the Surname-Name, put in the signature not a pretentious reference to a well-known film, but something not "such ...". Weak?
The toaster is another plus on the resume. A person can link to a tag (let's say #github) instead of answering stupid questions "what is a commit?", "how often do you commit?". It is quite logical that people want to receive a certain "profit" for the content that they fill the site with. And likes can be left for social networks with cats ...
Maxim Karakulov : that is, the optimal strategy for playing on this site is not to give the best answers, but to give out content that users like? OK...