Postgres allows: UPDATE dummy SET customer=subquery.customer, address=subquery.address, partn=subquery.partn FROM (SELECT address_id, ... ... <看更多>

Without concurrent write access. Materialize a selection in a CTE (Common Table Expressions) and join to it in the FROM clause of the UPDATE . ... <看更多>

Explore the full course (special discount included in the link):https://www.udemy.com/sql-and-postgresql-for ... ... <看更多>

I'm trying to use SELECT .. FOR UPDATE SKIP LOCKED in a subquery to delete some records concurrently, and I think I stumbled upon a bug. ... <看更多>

又开启另一个session3，更新非select for udpate里的数据. 1. 2. 3. postgres=# update shortlink set long_url = ' ... ... <看更多>