Dating design patterns digital photogr pg steps for dummies
The process only requires you give your new database a name, but there are other options that are available and usefull, and I analyse them in this video.Postgre SQL suports multiple data types for its columns and choosing the right datatype for each column is importante, both for correct data representation and database optimization.A well normalized database is usually better organized and more maintainable.This will also set the bases for relationships in our database.In this video, we will recreate the car Brand table, but we'll add the PRIMARY KEY constraint to the id column, and NOT NULL and UNIQUE constraints to the name column in the SQL statement.
Postgres offers a series of datatypes to eficiently store numbers in diferent formats and ranges.
There are a few steps you need to take in Postgres to correctly create new users.
Ins this lesson, I cover those steps so that a new user can connect to a specific database and access it with the necessary privileges.
In this video I review the numeric types and show some examples of how rounding decimal numbers works, and some errors that may occur.
The requirments gathering process is important in database construction since it allows for a better understanding of the problem that our databse will solve.