Currently my users table has the below fields Username Password Name Surname City Address Country Region TelNo
I have a question about Database design. I have two tables, usertable and historytable, which are one-to-many relationship, which usertable contains
Would it be possible (or is it illegal for any reason) to have something like this: This is basically an ISA class with a foreign-key relationship to itself.
I\'m somewhat new to SQL. I need to make an invoice that can be queried to create a document that looks something like this:
I\'m wondering what is the best way to create and maintain databases maps and SQL scripts. I know I\'m more a fan of writing the SQL script by hand on a text editor (plus designing a map to have next
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references,or expertise, but this question will likely solicit debate, a
I need to model a Q & A site like stackoverflow in mongoDB, here are my main issues. I have 2 main objects - Questions and users (just forget the others like answers etc...).
I\'m designing a web application which stores SEO metrics relating to websites. There are around 50 metrics relating to each website which are calculated and stored each day. I need to be able to trac
When you model inherit开发者_如何转开发ance through class table inheritance relationships in a database model, do you...
Let\'s consider the followi开发者_StackOverflow社区ng table models for sqlalchemy in python. class Worker(Base):
加载中,请稍侯......