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UPDATE Keyword

Update

The UPDATE

command is used to update existing rows in a table.

Formula

The following SQL statement updates the first customer (CustomerID = 1) with a new contact person and a new city.

Example

UPDATE Customers

SET ContactName = 'Alfred Schmidt', City= 'Frankfurt'

WHERE CustomerID = 1;
The following SQL statement will update the contactname to "Juan" for all records where country is "Mexico":

Example

UPDATE Customers

SET ContactName='Juan'

WHERE Country='Mexico';

Note:

Be careful when updating records in a table! Notice the WHERE clause in the

UPDATE statement.
The WHERE clause specifies which record(s) that should be updated. If you omit the WHERE clause, all records in the table will be updated!

SQL UPDATE Keyword

SQL UPDATE Keyword

UPDATE Keyword

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Update

The UPDATE

Example

UPDATE Customers

Example

UPDATE Customers

Note:

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SQL UPDATE Keyword

SQL UPDATE Keyword

UPDATE Keyword

Previous

Next

Update

The UPDATE

Example

UPDATE Customers

Example

UPDATE Customers

Note:

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