The data stored in a table can be updated using the UPDATE command:

UPDATE people SET age=2 WHERE name='Joe';

It’s important to add the WHERE clause; otherwise this statement:

UPDATE people SET age=2;

would update all the rows in the table.

Lessons in this unit:

0:	Introduction
1:	Using TablePlus
2:	Create a Postgres database
3:	Create a new table
4:	Add data to a table
5:	Query data with SELECT
6:	Delete data from the database
7:	▶︎ Update data with UPDATE
8:	Null constraints
9:	Unique and primary keys
10:	Updating a table structure
11:	Joins
12:	SQL Views
13:	SQL, copy data from one table to another