sqliteHow can I use an upsert statement to update data in a SQLite database?
An upsert statement can be used to update data in a SQLite database. It is a combination of the words "update" and "insert" and is a convenient way to update or insert data into a table.
The syntax for an upsert statement in SQLite is as follows:
INSERT INTO table_name (column1, column2, ...)
VALUES (value1, value2, ...)
ON CONFLICT (column1) DO
UPDATE SET column2 = value2, column3 = value3, ...;
In the above statement, table_name
is the name of the table where the data will be updated or inserted. column1
, column2
, etc. are the columns in the table that will be affected. value1
, value2
, etc. are the values that will be inserted or updated.
For example, if we wanted to update the name
column of the users
table with the value John
, we could use the following statement:
INSERT INTO users (name) VALUES ('John')
ON CONFLICT (name) DO
UPDATE SET name = 'John';
The output of this statement will be the number of rows affected, which in this case would be 1.
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