Title: Automatically Add Keys To Rows
Slug: automatically_add_keys_to_rows
Summary: Automatically Add Keys To Rows in SQL.
Date: 2016-05-01 12:00
Category: SQL
Tags: Basics
Authors: Chris Albon
Note: This tutorial was written using Catherine Devlin's SQL in Jupyter Notebooks library. If you have not using a Jupyter Notebook, you can ignore the two lines of code below and any line containing %%sql. Furthermore, this tutorial uses SQLite's flavor of SQL, your version might have some differences in syntax.
For more, check out Learning SQL by Alan Beaulieu.
In [1]:
# Ignore
%load_ext sql
%sql sqlite://
%config SqlMagic.feedback = False
In [2]:
%%sql
-- Create a table of criminals with pid being a primary key integer that is auto-incremented
CREATE TABLE criminals (pid INTEGER PRIMARY KEY AUTOINCREMENT,
name,
age,
sex,
city,
minor);
-- Add a single row with a null value for pid
INSERT INTO criminals VALUES (NULL, 'James Smith', 15, 'M', 'Santa Rosa', 1);
Out[2]:
In [3]:
%%sql
-- Select everything
SELECT *
-- From the table 'criminals'
FROM criminals
Out[3]:
In [4]:
%%sql
INSERT INTO criminals VALUES (NULL, 'Bill James', 22, 'M', 'Santa Rosa', 0);
INSERT INTO criminals VALUES (NULL, 'Stacy Miller', 23, 'F', 'Santa Rosa', 0);
INSERT INTO criminals VALUES (NULL, 'Betty Bob', NULL, 'F', 'Petaluma', 1);
INSERT INTO criminals VALUES (NULL, 'Jaden Ado', 49, 'M', NULL, 0);
INSERT INTO criminals VALUES (NULL, 'Gordon Ado', 32, 'F', 'Santa Rosa', 0);
INSERT INTO criminals VALUES (NULL, 'Bill Byson', 21, 'M', 'Santa Rosa', 0);
INSERT INTO criminals VALUES (NULL, 'Bob Iton', NULL, 'M', 'San Francisco', 0);
Out[4]:
In [5]:
%%sql
-- Select everything
SELECT *
-- From the table 'criminals'
FROM criminals
Out[5]: