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 instruction:
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: | DEMO Using Vercel Postgres COMING SOON |
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