/SQL/Postgres update with if condition query

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

Postgres update with if condition query

update t1 
  set current_location = 
    case t2.status
        when 0 then 'Deployed'
        when 1 then 'Retrieved'
        when 2 then 'Lost'
    end
from t2 inner join t3
   on t2.some_id = t3.some_id
where t3.serial_number = t1.serial_number;

Source: stackoverflow.com

Similar codes

-1 vote119 views1 answer
Phinehas Psalm 106
SQL
6 votes117 views2 answers
Join vs union
SQL
0 vote105 views1 answer
Mysql case when null
SQL
61 votes274 views6 answers
Mysql add column
SQL
0 vote117 views1 answer
Connect by query in oracle
SQL
1 vote109 views1 answer
Pl sql insert into table
SQL
1 vote102 views1 answer
PLS-00225 type
SQL
2 votes61 views1 answer
Select sid oracle
SQL
1 vote102 views2 answers
Grab part of a string sql
SQL
8 votes107 views5 answers
Alter table add column with default value
SQL