Update con select postgresql

Postgres update with if condition query

update t1
        set t1.current_location =   
        CASE  
			WHEN SUBQUERY.status = 0 THEN 'Deployed' 
			WHEN SUBQUERY.status = 1 THEN 'Retrieved' 
			WHEN SUBQUERY.status = 2 THEN 'Lost' 
            ELSE t1.current_location
		END 
from (
    select t3.serial_number, t2.status
    from t2 inner join t3
        on t2.some_id = t3.some_id
    ) as SUBQUERY

where SUBQUERY.serial_number = t1.serial_number;

Source: stackoverflow.com

Update from select postgresql

UPDATE
  <table1>
SET
  customer=subquery.customer,
  address=subquery.address,
  partn=subquery.partn
FROM
  (
    SELECT
      address_id, customer, address, partn
    FROM  /* big hairy SQL */ ...
  ) AS subquery
WHERE
  dummy.address_id=subquery.address_id;

Source: stackoverflow.com

Update con select postgresql

UPDATE dummy
SET customer=subquery.customer,
    address=subquery.address,
    partn=subquery.partn
FROM (SELECT address_id, customer, address, partn
      FROM  /* big hairy SQL */ ...) AS subquery
WHERE dummy.address_id=subquery.address_id;

Source: es.stackoverflow.com

Similar codes

0 vote265 views1 answer
Check if database exists sql
SQL
0 vote225 views1 answer
Java spring boot connect to sql server
SQL
4 votes261 views2 answers
Could not find driver (SQL: select * from information_schema.tables where table_schema = pics and table_name = migrations and table_type = 'BASE TABLE')
SQL
0 vote280 views1 answer
Postegresql update to null
SQL
0 vote264 views1 answer
Mysql illegal mix of collations for operation 'concat'
SQL
0 vote268 views1 answer
Create date sql
SQL
1 vote266 views1 answer
Postgresql transaction discard all
SQL
4 votes253 views1 answer
Oracle show errors compilation
SQL
31 votes253 views3 answers
Sql count
SQL
0 vote309 views1 answer
Tsql cte in a transaction
SQL