sqliteHow do I perform an update query in SQLite?
An update query in SQLite can be used to modify existing data in a table. The basic syntax of an update query is as follows:
UPDATE table_name
SET column1 = value1, column2 = value2, ...
WHERE condition;
In this example, table_name
is the name of the table in which the data is being updated, column1
, column2
, etc. are the names of the columns being updated, and value1
, value2
, etc. are the new values being assigned to those columns. The WHERE
clause specifies the condition that must be met for the update to take place.
For example, the following query will update the name
and age
columns of the users
table for all users whose id
is 1
:
UPDATE users
SET name = 'John Doe', age = 30
WHERE id = 1;
This query will result in the following output:
Query OK, 1 row affected (0.01 sec)
The following parts compose the query above:
UPDATE users
- this specifies the table to be updatedSET name = 'John Doe', age = 30
- this sets the new values for the specified columnsWHERE id = 1
- this specifies the condition that must be met for the update to take place
For more information, see the SQLite documentation.
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