Note: You’ll need to have mysqlclient installed using pip or conda. Step 2 – Use the code below to connect to MySQL and load the empty database with data. The command-line syntax is given below: create database datasciencedb You can either use the command line or the Workbench GUI (See the video for details). Step 1 – Create an empty database in MySQL. We would also use the same imports as with SQLite. Let’s now connect to Python to MySQL Database. Please watch the video for a detailed procedure. You can download them from the links below To view this SQLite database you will need a tool like DB Browser for SQL Lite or DBeaver. Once this code executes, the database would be available in the datasets directory with the name tutorial.db. I recommend you execute each part of the code separately. # Load the imported CSV into your databaseĭata. # Create the db engine for in-memory databaseĭata = pd. Import pandas as pd # Create the db engine for file databaseįile_db = ce( 'sqlite:///datasets/tutorial.db') # Import the neccessary modules from sqlalchemy import create_engine as ce Then we load this database using data imported from a CSV file. Actually, we’ll create an in-memory database. Let’s connect Python to a database in memory. In this tutorial, you have learned how to show the structure of a table in SQLite via a command-line shell program or SQL statement.In this tutorial, you will learn how to connect Python code to various SQL database servers including: SQLite, PostgreSQL, MS SQL, MySQL. WHERE name = 'albums' Code language: SQL (Structured Query Language) ( sql )Ĭode language: SQL (Structured Query Language) ( sql ) You can find the structure of a table by querying it from the sqlite_schema table as follows: SELECT sql FROM sqlite_schema The following picture shows the output: cid name type notnull dflt_value pkĢ ArtistId INTEGER 1 0 Getting the structure of a table using the SQL statement mode column Code language: SQL (Structured Query Language) ( sql )Īnd use the PRAGMA command as follows: pragma table_info( 'albums') Code language: JavaScript ( javascript ) To do it, you use the following command to format the output. INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,įOREIGN KEY () REFERENCES "artists" ()ĬREATE INDEX ON "albums" () Code language: SQL (Structured Query Language) ( sql )Īnother way to show the structure of a table is to use the PRAGMA command. Here is the output: CREATE TABLE IF NOT EXISTS "albums" schema will consider the albums as the table name and returns nothing because the table albums does not exist. Notice that there is no semicolon ( ) after the table name. schema albums Code language: SQL (Structured Query Language) ( sql ) schema table_name Code language: SQL (Structured Query Language) ( sql )įor example, the following command shows the statement that created the albums table. To find out the structure of a table via the SQLite command-line shell program, you follow these steps:įirst, connect to a database via the SQLite command-line shell program: sqlite3 c:\sqlite\db\chinook.db Code language: SQL (Structured Query Language) ( sql ) Getting the structure of a table via the SQLite command-line shell program Summary: in this tutorial, you will learn about various ways to show the structure of a table in SQLite.
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