Update set with inner join oracle

UPDATE 
(SELECT table1.value as OLD, table2.CODE as NEW
 FROM table1
 INNER JOIN table2
 ON table1.value = table2.DESC
 WHERE table1.UPDATETYPE='blah'
) t
SET t.OLD = t.NEW

or

UPDATE table1 SET table1.value = (SELECT table2.CODE
                                  FROM table2 
                                  WHERE table1.value = table2.DESC)
WHERE table1.UPDATETYPE='blah'
AND EXISTS (SELECT table2.CODE
            FROM table2 
            WHERE table1.value = table2.DESC);

Source: stackoverflow.com

Similar codes

50 votes264 views6 answers
Install mysql on ubuntu
SQL
0 vote159 views2 answers
Pg_restore: error: input file appears to be a text format dump. Please use psql.
SQL
1 vote192 views1 answer
Mysql select all and rename one
SQL
0 vote164 views2 answers
Mysql on update current_timestamp
SQL
1 vote171 views3 answers
Psql: error: FATAL: role "postgres" does not exist
SQL
0 vote227 views1 answer
Tsql find procedure with name
SQL
1 vote204 views1 answer
Mysql print variable
SQL
1 vote185 views2 answers
How to install mysql workbench in ubuntu 20.04
SQL
0 vote164 views1 answer
Start and stop mysql
SQL
0 vote172 views1 answer
Qt qsql check if table exist
SQL