what about:
CREATE UNIQUE INDEX id ON thistable (APPCODE, EMAILID);
regards,
rene
----- Original Message -----
From: "Duke" <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Tuesday, March 20, 2001 4:02 PM
Subject: Wats the CREATE TABLE statement?
I would like to know how to write a SQL statement if i have a composite key
present in the table. eg. my table is
APPCODE EMAILID EMAIL
1 ML1 [EMAIL PROTECTED]
1 ML2 [EMAIL PROTECTED]
2 ML1 [EMAIL PROTECTED]
3 ML1 [EMAIL PROTECTED]
4 ML1 [EMAIL PROTECTED]
4 ML2 [EMAIL PROTECTED]
as you can see in the above table ..... emailids per appcode is maximum 2.,
hence each appcode will repeat.
Also the combination of APPCODE+EMAILID helps to identify a given row
uniquely. ie. APPCODE + EMAILID are a combined primary key.
but i havent able to figure out how to go bout writing the SQL code.
does any1 know what the SQL CREATE TABLE statement will be?
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