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

0 vote265 views1 answer
How to check if there is no database schema
SQL
0 vote314 views1 answer
Database schema for mcqs type exam in sql
SQL
0 vote288 views1 answer
Oracle query to find schema you are working on
SQL
0 vote304 views1 answer
How do you insert boolean to postgresql
SQL
2 votes331 views1 answer
Find column in all stored procedures sql server
SQL
0 vote309 views1 answer
Select year from dual oracle
SQL
0 vote276 views1 answer
Except in sql
SQL
7 votes279 views6 answers
Nth highest salary in sql
SQL
0 vote276 views2 answers
Oracle create chain rule
SQL
16 votes308 views6 answers
Mysql find duplicates in same table
SQL