hi,
i have a table below and corresponding field.
table1
code // it's a unique field.
des // varchar

insert into table1(code,des) values('001','description') on duplicate key update des = 'new description';
the sql above is used to insert data but if already exist it execute update my problem is , what if my field code is not unique. How to execute a insert / update sql.

Anyone can help me.
Popskie

well, you started out saying that it is unique

anyhow, the mysql manual says that if it is not unique, only one row will be updated

you should probably run a few queries on a test table to become familiar with how it works

Is their any other way beside on duplicate key. Ok i'll explain to you clearly.
My scenario is there is a insert / update procudere with two filtering expression.

ex.
if id and code not exist.
insert into table1(id,code,name)values(value1,value2,value3)
else
update table1 set name = value3 where id =value1 and code = value2


Is this posible in mysql with only a single shot and take this two statement execute to the server.

define your key with two fields

ok thanks r937. I thought mysql primary has only 1 field.

that's right, keys can have more than one column

PRIMARY KEY (index_col_name,...)

the "dot dot dot" is the secret