UPDATE table1 t1 SET (name, desc) = (SELECT t2.name, t2.desc FROM table2 t2 WHERE t1.id = t2.id) WHERE EXISTS ( SELECT 1 FROM table2 t2 WHERE t1.id = t2.id ) Assuming the join results in a key-preserved view, you could also They are often used in SELECT and UPDATE statements to make these queries more efficient and easier to maintain.

rajesh@ORA11G> create table dept as select * from scott.dept; Table created. 5 Ways to Update Data with a Subquery in Oracle SQL.

rajesh@ORA11G> update ( select ename,dname 2 from emp e, dept d 3 where e.deptno = d.deptno ) 4 set ename = dname; set ename = dname * ERROR at line 4: ORA-01779: cannot modify a column which maps to a non key-preserved table This Oracle tutorial explains how to use the Oracle UPDATE statement with syntax, examples, and practice exercises.
There are 2 syntaxes for an update query in Oracle. Total: 16 Average: 3.8.

oracleのupdate select（selectした結果でupdateする）oralceのupdateはupdate select、つまりselectした結果でupdateすることができます。updateは「set」で「更新列」と「値 This is called a correlated update. The Oracle UPDATE statement is used to update existing records in a table in an Oracle database. A subquery is a powerful way to find the data you want to use for another query. December 6, 2017 December 6, 2017 Ben Brumm Oracle.

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