On 2022-08-07 7:54 AM, Ron wrote:
On 8/7/22 00:30, Frank Millman wrote:
Hi all
Apologies if this is an FAQ, but I could not find the answer I was
looking for.
I want to run two SELECTs, one immediately after the other.
I want to ensure that no other process updates the database in
between the two.
What is the best way to achieve this?
You probably want to put the queries in a Repeatable Read transaction,
or even a READ ONLY serialized transaction.
https://www.postgresql.org/docs/12/transaction-iso.html#XACT-REPEATABLE-READ
https://www.postgresql.org/docs/12/transaction-iso.html#XACT-SERIALIZABLE
https://www.postgresql.org/docs/12/sql-set-transaction.html
Thanks, Ron. That is exactly what I am looking for.
Frank
