O Guia Definitivo do Yii 1.1

Data manipulation queries refer to SQL statements for inserting, updating and deleting
data in a DB table. Corresponding to these queries, the query builder provides insert,
update and delete methods, respectively. Unlike the SELECT query methods described
above, each of these data manipulation query methods will build a complete SQL
statement and execute it immediately.
• insert: inserts a row into a table
• update: updates the data in a table
• delete: deletes the data from a table
Below we describe these data manipulation query methods.
insert
function insert($table, $columns)
The insert method builds and executes an INSERT SQL statement. The $table parameter
specifies which table to be inserted into, while $columns is an array of name-value pairs
specifying the column values to be inserted. The method will quote the table name
properly and will use parameter-binding for the values to be inserted.
Below is an example:
// build and execute the following SQL:
// INSERT INTO `tbl_user` (`name`, `email`) VALUES (:name, :email)
$command->insert('tbl_user', array(
'name'=>'Tester',
'email'=>'tester@example.com',
));
update
function update($table, $columns, $conditions='', $params=array())
The update method builds and executes an UPDATE SQL statement. The $table
parameter specifies which table to be updated; $columns is an array of name-value pairs
specifying the column values to be updated;$conditions and $params are like in where,
which specify the WHERE clause in the UPDATE statement. The method will quote the
table name properly and will use parameter-binding for the values to be updated.
Below is an example: