Sorry I just abbreviated the original column name to desc its obviously not that in the db — user Add a comment. Active Oldest Votes. That syntax isn't valid in Oracle.
NEW It depends if the inline view is considered updateable by Oracle To be updatable for the second statement depends on some rules listed here. Improve this answer. Tony Andrews Tony Andrews k 20 20 gold badges silver badges bronze badges. I did the second example but had to add aliases to the column names in the select and then reference them by their names in the SET but it worked, thanks — Gustavo Rubio.
The second example has the benefit of allowing you to test the SQL before actually performing the update. The second example worked for me. I like that one because it looks clean and readable. Don't know what the pros and cons are between the two when it comes to performance.
But, I wasn't worried about that for now 'cuz I used this for a one off script to correct bad data. Explanation on key-preserved requirement for updatable joins: asktom. Got this - "ORA cannot modify a column which maps to a non key-preserved table", and then stackoverflow.
Show 7 more comments. Quassnoi Quassnoi k 88 88 gold badges silver badges bronze badges. Works perfectly but Oracle required me to say merge into table 1 t and so forth. Late to the party, but this is still a good thread. I need to know, tho' Master table, "table1". Table2, aliased as t2, but in the ON, the references are External Table1 - not t1 - is this a reference to the outer table or a type?
Not t2? Je suis confused. Fan of better aliases Just a point here, if your key trg. Marc In the ON , trg is the alias for the master table, table1 "outer" table by your logic , and src references the USING group "inner table" by your logic. But yeah, probably could've been referenced better, but I was able to follow it. This can work in some cases, but the view has to be "key-preserved" every joined table has to be equality-joined on its primary key or otherwise unique fieldset.
This makes sure every record in the target table contributes to at most one record in the resulting rowset, and, hence, every record in the target table is updated at most once.
Show 3 more comments. Roland Roland 6, 11 11 gold badges 55 55 silver badges bronze badges. In this article, we have learned about the Oracle Update with Join query which is responsible for execution of the cross-table update.
In this way, the existing data in the database can be modified with this Oracle update with join query commands that helps to update within a same table or multiple tables.
This is a guide to Oracle Update with Join. Here we discuss the definition, syntax, and How update with join works in Oracle? You may also have a look at the following articles to learn more —. Submit Next Question. By signing up, you agree to our Terms of Use and Privacy Policy. Forgot Password? This website or its third-party tools use cookies, which are necessary to its functioning and required to achieve the purposes illustrated in the cookie policy.
By closing this banner, scrolling this page, clicking a link or continuing to browse otherwise, you agree to our Privacy Policy. Oracle Update with Join. Viewed 10k times. Improve this question. Marmite Bomber Add a comment. Active Oldest Votes. You could also use a merge instead of an update, e.
Improve this answer. Alex Poole Alex Poole k 9 9 gold badges silver badges bronze badges. Thank you! And yes, I have multiple IDs and will make an update on that. For now, I was just trying to get one to work. I appreciate it : — JMC. Marmite Bomber Marmite Bomber Sign up or log in Sign up using Google.
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