update command sets the values of a particular column .
using this command we can manipulate data within a database.
update command can be used with where clause.using this we 
can set the values in a column at any time.

Hi,

     By using Update command we can update the data in a 
table from one value to another value..


Regards,
Satya.k

to manipulate the data in exisiting row



by
kotravel
nathakkadiyur
erode

Update command is used to change the value of an 
 column/s (field) of a table

or 

to change an existing value/s of a table

update command is used to modify the values of existing 
data.
here where clause is used to check the condition where we 
want to make change?

Update command is used to modify, we can modify column
name,Values etc.,