Thanks i will
Kees Nuyt wrote:
>
> On Wed, 6 Aug 2008 23:57:51 -0700 (PDT), you wrote:
>
>>
>>In sqlite whether can we rotate content in database .
>>That means i want to restirct my database to some size,if it exceeds that
>>size it has to replace first entry.
>>Can anybody help.Thanks in advance
>
> I had a similar requirement some time ago.
> This was my solution (it limits the number of rows in the
> table, not the size on disk, but in many implementations
> that is more or less equivalent):
>
> CREATE TABLE jobs (
> jobid INTEGER PRIMARY KEY AUTOINCREMENT NOT NULL,
> jobprio INTEGER DEFAULT 9
> CONSTRAINT jobs_valid_prio
> CHECK (jobprio > 0 AND jobprio < 10),
> status CHAR(1) DEFAULT 'W'
> CONSTRAINT jobs_valid_status
> CHECK (status IN ('W','I','R','T','A','C')),
> userid VARCHAR(8) NOT NULL,
> :
> :
> );
> CREATE INDEX idx_jobs_tsn ON jobs(TSN);
>
> CREATE TRIGGER jobs_ins AFTER INSERT ON jobs
> FOR EACH ROW BEGIN
> DELETE FROM jobs WHERE jobid < (NEW.jobid - 9999);
> END;
> --
> ( Kees Nuyt
> )
> c[_]
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>
>
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