SQL Update

















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SQL Update




Update Rows

The UPDATE statement updates or changes rows:


UPDATE table_name SET column_name = new_value
WHERE column_name = some_value




Person:


LastName
FirstName
Address
City


Nilsen
Fred
Kirkegt 56
Stavanger


Rasmussen
 
Storgt 67
 





Update one Column in a Row
We want to add a first name to the person with a last name of
"Rasmussen":

UPDATE Person SET FirstName = 'Nina'
WHERE LastName = 'Rasmussen'

Update several Columns in a Row
We want to change the address and add the name of the city:

UPDATE Person
SET Address = 'Stien 12', City = 'Stavanger'
WHERE LastName = 'Rasmussen'

Result


LastName
FirstName
Address
City


Nilsen
Fred
Kirkegt 56
Stavanger


Rasmussen
Nina
Stien 12
Stavanger







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