On 3/19/20 3:32 PM, pabloa98 wrote:
>
>
> On Thu, Mar 19, 2020 at 3:17 PM Rob Sargent <robjsargent@xxxxxxxxx
> <mailto:robjsargent@xxxxxxxxx>> wrote:I have a table called "pair":
CREATE TABLE pair( group INT NOT NULL, element INT NOT NULL, CONSTRAINT PRIMARY KEY (group, element)
);
I must add entries to the table "event". This table event will have a code that will be generated using a sequence of that is a function of s(group,element).
CREATE TABLE event( group INT NOT NULL, element INT NOT NULL, code INT NOT NULL, CONSTRAINT PRIMARY KEY(code, element, group) );
Unless event table is searched by code more than group, you probably want to maintain the key order from the pair table's primary key.
OK. I will do that.
If gaps are ok do you still near multiple sequences?
I need to start each "code" value from 1 in each (group, element) pair. This is because we only have 99999999 codes for each pair. We do not want to waste numbers. If there is a gap is OK but no a gap of millions of numbers.
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