Normally refers to a variable length string data type.

learn more… | top users | synonyms

0
votes
1answer
49 views

Can I use LongText instead of varchar

I want to store string like ins37_14387771184402,ins37_14387771184403,ins37_14387771184404,ins37_14387771184405,ins37_14387771184402,ins37_14387771184403,ins37_14387771184404,ins37_14387771184405,...
0
votes
1answer
86 views

Does PostgreSQL have a variable character storage layer that optimizes storage space by automatic dedupe?

My application has a Product and a Purchased table. The Purchased table includes a full copy of the Product row at time of purchase, so that, even if a product name or description was changed, the ...
0
votes
1answer
149 views

Implicitly (or proxy) convert to Nvarchar on incoming queries from legacy or 3rd party applications

We have a 3rd party application of which we don't have the source code. This application executes queries on our database without using the "N" prefix before literal strings. It does this in inserts ...
1
vote
0answers
30 views

Wordpress using varchar(255) for index with InnoDB and utf8mb4_unicode_ci?

I'm trying to learn a bit more about the details of proper database construction and ran across something that confuses me. In a current Wordpress installation, I'm finding varchar fields used for ...
0
votes
0answers
412 views

varchar() vs TEXT with utf8 encoding character length limit

I'm building a huge dashboard for a big website. And I'm now in the phase of creating the database and it is very very big with a lot of relations. So I want to build something that doesn't consume ...
0
votes
0answers
44 views

making everything varchar on purpose, though some fields should be int

I'm writing a PHP website for some clients which parses excel, stores the value in a database and then retrieves them. Some fields are only integers, but the clients can't make up their minds, they ...