What are differences between INSERT and UPDATE in MySQL?
Solution 1
In CRUD operations, the INSERT
is the 'C' and the UPDATE
is the 'U'. They are two of the four basic functions of persistent storage. The other two are SELECT
and DELETE
. Without at least these four operations, a typical database system cannot be considered complete.
Use INSERT
to insert a new record.
Use UPDATE
to update an existing record.
Solution 2
You cannot UPDATE a row that's not in a table.
You cannot INSERT a row that's already in a table.
Solution 3
Insert is for adding data to the table, update is for updating data that is already in the table.
Solution 4
An UPDATE
statement can use a WHERE
clause but INSERT
cannot.
Solution 5
Insert is for putting in a fresh record to the table. while the update enables you to modify the inserted record e.g. modifying data type etc.
shin
IB Diploma and MYP mathematics teacher who loves coding.
Updated on December 03, 2020Comments
-
shin over 3 years
It seems
INSERT
andUPDATE
do the same things to me.Is there any occasions where I should use
INSERT
instead ofUPDATE
and vice versa?