SQL seems simple and complex, and the time of learning depends on where you work. If you are a novice programmer but just a beginner, you will find that it is just a tool that can access data, but programmers with high registration need to master optimization skills. So how long will it take to learn SQL without foundation?
How long will it take to learn SQL?
There are only four SQL instructions. Select insert update delete is not a problem at all. The difficulty is data structure and algorithm, but the key is mathematical foundation.
Therefore, 15 days of self-study SQL for analysis is enough.
Which is better, the basic sql tutorial or must know?
For zero based friends, Mick's Basic SQL Tutorial is easier to understand and learn, and is very suitable for beginners to learn.
After reading the SQL Basic Tutorial, you can quickly read the SQL Must Know and Must Know. In fact, this is a function of checking, filling and reviewing.
The evaluation of a certain section of "SQL Must Know and Must Know" Version 5 and "SQL Basic Tutorial Version 2" is OK, both suitable for beginner learning. The 2013 version of SQL Know It Now is much more popular than the Basic SQL Tutorial.
Basic knowledge of SQL
In fact, SQL can also be said to exist everywhere, even widely used. In life, every payment record we consume, every user information we collect, and every message we send will be stored in the database or its related products. Perhaps this is the charm of SQL.
