Apex Update DML Statement
To update an existing record, you need to use the update statement.
Example 1:
public static void main() {
Account a = [SELECT Name from Account WHERE Name like‘ Sh % ’LIMIT 1]
a.name = ‘Cyntexa’;
update a;
}Example 2:
List < Contact > conList = [SELECT firstname, lastname FROM Contact WHERE
createdDate = Today
];
Integer i = 1;
for (Contact cc: conList) {
cc.firstname = cc.firstname + i);
i++;
}
update conList;Note:
We cannot modify a list or collection in a for-each loop where its even elements are iterated. (infinite loop)
