Обсуждение: Auto commit Off how will it effect us ?

Dear all ,

Permit me to gain some of your most valuable knowledge ...........

Our intrAnet server has the following spec
1. RH 9.0
2. Postgresql 7.3.4
3. PHP 4.3.3
4. GCC  3.2.2

Till date my front end language (PHP) use to simply pass the data to
postgresql in case of insert and
update we were not using
1  BEGIN COMMIT block in PHP till date thanks to auto-commit-ON in postgreql
2. ROLLBACK script in PHP script


And now when our company has decided to switch over to  postgresql 7.4
we have some doubt
1. Do we have to include BEGIN and COMMIT block around the insert
process . (Because Postgresql 7.4 has auto-commit-OFF) in our PHP scripts
2. Not only this do we also have to port the pgSQL functions which use
to do inserts into a third table such that
    data gets committed on function execution


Please provide us any kinda information so that we can happily switch to
postgressql 7.4



Regards,
V Kashyap

hi,

SaiHertz And Control Systems wrote, On 12/3/2003 5:33 PM:
> Dear all ,
>
> Permit me to gain some of your most valuable knowledge ...........
>
> Our intrAnet server has the following spec
> 1. RH 9.0
> 2. Postgresql 7.3.4
> 3. PHP 4.3.3
> 4. GCC  3.2.2
>
> Till date my front end language (PHP) use to simply pass the data to
> postgresql in case of insert and
> update we were not using
> 1  BEGIN COMMIT block in PHP till date thanks to auto-commit-ON in postgreql
> 2. ROLLBACK script in PHP script
>
>
> And now when our company has decided to switch over to  postgresql 7.4
> we have some doubt
> 1. Do we have to include BEGIN and COMMIT block around the insert
> process . (Because Postgresql 7.4 has auto-commit-OFF) in our PHP scripts

in pg7.4
AUTOCOMMIT = 'on'

try: SET AUTOCOMMIT = off; you will get:
ERROR:  SET AUTOCOMMIT TO OFF is no longer supported

C.

  I have a table called Jobs and another called Applications. I can
query all Job rows, but how do I also include the number of Application
rows for each Job row in the SELECT statement?

applications has a jobid foreign key

create table job (      jobid SERIAL,
                         login varchar(40),
                         jobtitle varchar(70),
                         jobdescrip TEXT,
                         jobkeywords TEXT,
                         valid int2 NOT NULL,
                         postdate TIMESTAMPTZ,
                         PRIMARY KEY (jobid),
                         FOREIGN KEY(login) REFERENCES company
                             ON DELETE CASCADE
                         );


CREATE TABLE application        (   applid SERIAL,
                                     jobid INTEGER,
                                     login varchar(6),
                                     apldate TIMESTAMPTZ,
                                     PRIMARY KEY (applid),
                                     FOREIGN KEY (jobid) REFERENCES job
                                         ON DELETE CASCADE,
                                     FOREIGN KEY (login) REFERENCES
student
                                         ON DELETE CASCADE
                                 );



thanks for any help on this..
Michael