At any point, you can find out the schema of how the tables were created in the database.At this time, nothing will be returned because the table is created, but there is no data in the table yet. The * is a symbol that means “all of the columns”. Use a SELECT statement to return out all rows in the weather table.Ensure that the weather table was created.tables Use this command to list out all tables.Note: This is not the full table you’ll be using in Sunshine, this is just a simpler version of the table. Note: SQLite keywords, such as CREATE TABLE or PRIMARY KEY, are capitalized for ease of readability to distinguish them from the table and column names that we’ve selected, but you can lowercase the keywords if you want. The list of possible SQLite data types is a useful resource, or you can see this tutorial. We specify the _id column to be the primary key and it’s an integer.ĬREATE TABLE weather( _id INTEGER PRIMARY KEY, date TEXT NOT NULL, min REAL NOT NULL, max REAL NOT NULL, humidity REAL NOT NULL, pressure REAL NOT NULL) We also specify that the column should be non-null. It should have 6 columns of data: ID, date, min temperature, max temperature, humidity, and pressure.In the CREATE TABLE statement, each column definition is separated by commas, where you provide the column name and datatype for that column. Use the CREATE TABLE statement to create a new database table called “weather.” Each row will be one day’s worth of weather data. A table is a collection of rows and columns like a spreadsheet.Our Sunshine app will only have a single database, and that database can contain multiple tables. In an app, you can have multiple databases. It should display one database called main and the file location on your computer for sunshine.db.databases One of the commands is to list out all databases.Create a new database file called sunshine.db and start the SQLite shell (which will recognize your SQL commands) by typing: sqlite3 sunshine.db Open terminal and navigate to a folder of your choice where you will save your database. You can follow this tutorial or go directly to
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