Update row oracle

Specify a comment that passes instructions to the optimizer on choosing an execution plan for the statement. The ONLY clause applies only to views. Specify the schema containing the object to be updated. If you omit schema , then the database assumes the object is in your own schema. Specify the name of the table, view, materialized view, or the columns returned by a subquery to be updated. If you specify view , then the database updates the base table of the view. If table or the base table of view contains one or more domain index columns, then this statement executes the appropriate indextype update routine.

You cannot update rows in a read-only materialized view. If you update rows in a writable materialized view, then the database updates the rows from the underlying container table.

However, the updates are overwritten at the next refresh operation. If you update rows in an updatable materialized view that is part of a materialized view group, then the database also updates the corresponding rows in the master table. Oracle Data Cartridge Developer's Guide for more information on the indextype update routines.

Specify the name of the partition or subpartition within table targeted for updates. Asked 3 years, 6 months ago. Active 3 years, 6 months ago. Viewed 1k times. Improve this question. Gordon Linoff 1. Potato Potato 1 1 silver badge 10 10 bronze badges. Why do you want it row by row which is in general the slowest way of doing it? What is totalTransactions? If you are trying to update the value of a column in multiple rows of a table based on results from other tables, then you would be far better off doing it in a single UPDATE or MERGE statement, rather than using this very procedural row-by-row aka slow-by-slow way.

If you need help writing this single DML statement, please edit your question to include some sample data for all your tables along with the expected output you're expecting to see. Add a comment. Active Oldest Votes. My 2 cents: When you update using the set row feature, triggers you may have defined for a column will fire and may cause unexpected outcomes. I'm a big believer of updating only what is needed and nothing else. June 12, - am UTC.

I respectfully disagree with you here - if the trigger should do things only when a value changes, the trigger should contain requisite code to ensure that. Kashif, June 12, - pm UTC. Tom, I know how you feel about triggers, however things like an auto-generated id in Oracle can be implemented using a trigger only short of calling the sequence everytime in an insert.

Plus, the trigger may or may not validate for changed values in the columns, I was simply trying to provide a heads-up on potential issues Rizwan may encounter.

I would question why there are columns in the table to begin with. June 12, - pm UTC. And the price was pointed out - the trade off you have to make Triggers with Instead-OF Views are great! Rumburak, June 12, - pm UTC. Oh Tom, first time that I have to disagree! They helped me so much in my Apex-Apps when I use the automatic row processing feature. I hate them. I like simple things done simply Because every time a developer comes up with something really fancy smancy smart and dandy - we get burned I am a developer, I've burned myself so many times.

Thanks very much! Kashif, June 13, - am UTC. That's been my experience anyway. Getting back to SET ROW, I would be interested to know the actual not hypothetical number of unique update statements generated by Rizwan's application. Don't think it would be in the millions June 13, - pm UTC. I showed how to do it, i was not advocating it. I've written many many times that "this is not the right way", in books even Rizwan already said it would be lots of unique combinations - hundreds at least I would guess.

Reader03, June 14, - am UTC. Any obvious drawbacks or just a feeling? June 14, - am UTC. I don't like magic. I don't like surprises. One mans Magic Mike, June 14, - am UTC.