Bulk update example in oracle 11g

One would use a record of arrays in 8i to facilitate bulk collects whilst using a record. Hi Tom, Is it possible to bulk append to a collection. Say I have a collection x that already has 5 elements populated. Now I want to add 10 elements to it. Is there a way to avoid, in the case of nested table, doing loop x.

May 14, - am UTC. No, not really. You can optimize the extend by extending all N at once but then you would be doing singleton assignments to move the second collection into the first. Hi Tom, I just overlooked your above emprec definition.

Thanks a lot for the clarification. Shaji, May 14, - am UTC. Hi Tom, I just overlooked the emprec definition. Thanx for the clarification. And does this resolve the lock issue? We have these update statements in our batch jobs that get kicked off every night at same time. The values for the columns come from different sources. Your help would be much appreciated. May 15, - am UTC. ROWS are locked, not columns. Thanks Tom. I thought so, but just want to confirm. It works! Bulk updates lakshmi, May 15, - am UTC.

Dear Tom, One of my daily night process takes around 12 hours to completes which processes around 6 Lakhs of rows. The logic built was that the number of rows to be processed are inserted into a table which is first truncated. The logic built by the application tea was declare define a cursor begin for cursor loop processing I wanted to use bulk collect feature using records as shown by you in the top.

But when compared to single processing the tieme taken is same in both the cases. Based on the logic developed by our developer, I have created a package with both the options Bulk Fetch and Single Fetch. The check was made for rows. Bulk Processing hsecs. Then it gets inserted using forall. What I assume is that since I am calling the functions in a loop using for loop and this loop is being executed total no.

Is there any way that I can pass bulk parameters to functions instead of running the loop times. Please help.

This will help me enhance my knowledge towards application tuning. There are similar processes which I need to improve in terms of response time. Regards Vivek. September 30, - am UTC. I cannot read the above code and "tune it" for you -- well, maybe I could but thats not what this is about. Hi Tom, You said that in 8i it would not be possible to bulk collect in arrays of records.

I have a similar question for bulk binds. Can we bulk bind arrays of records or arrays of some other data type using the forall statement in 8i. March 06, - am UTC. Thanks for an excellent explanation of the bulk collect and forall. I was able to quickly take your example and apply it to my case. Thanks for helping me keep my job!! Hello Tom, I am making exact the same as you but it dosen't work. June 27, - am UTC. Sorry I didn't want to waste your time.

Here a "working" fragment of the code. I know how it looks like. Database is getting data from a sensor. Therefore this funny "1 row insertion". June 27, - pm UTC. Just an Idea Richard, June 29, - am UTC. I was very interested in the question posed by "A Reader" the one where you replied, "better idea. Fair enough, but now I'm wondering if A Reader ever did ask the question, again.

Frustrated, an idea popped into my head: why not have user IDs a bit like OTN IDs , so that it'd be easy to search for questions asked by certain persons? Also, it'd be nice to be able to sort the "Recent" questions by date, age, and the question-poser's ID. September 13, - pm UTC. However I wish to perform updates. September 14, - am UTC. Yes, your approach is the correct one for updates. Hi Tom, building on my previous question please, how would you go about resolving the issue where either an update or insert is required depending on an indicator.

However I know that a forall can only accept one dml statement. I can see in another thread that you offered a way of forall inserting into different tables.

I cannot do a forall insert and then a forall update since the records must be processed in timestamp order. Any hints would be very much appreciated thanks.

November 10, - pm UTC. A reader, July 27, - am UTC. This is a collection of exceptions for the most recently executed FORALL statement, with the following two fields for each exception:. In sparsely populated collections, the exception row must be found by looping through the original collection the correct number of times.

The total number of exceptions can be returned using the collections COUNT method, which returns zero if no exceptions were raised. As shown from previous examples, a move from conventional operations to bulk operations will require a revision of your current exception handling or the desired results may not appear.

The use of bulk operations with dynamic SQL is explained in the next section. Feel free to ask questions on our Oracle forum. Verify experience! Anyone considering using the services of an Oracle support expert should independently investigate their credentials and experience, and not rely on advertisements and self-proclaimed expertise. All legitimate Oracle experts publish their Oracle qualifications. Oracle technology is changing and we strive to update our BC Oracle support information.

If you find an error or have a suggestion for improving our content, we would appreciate your feedback. If generate is TRUE , bulkload generates intermediate files. When using the check or generate action, you must specify the path name to the LDIF data file. When append is TRUE , bulkload can perform its actions while the server is up and running. Use the restore flag only when the LDIF file contains operational attributes, such as orclguid or creatorsname.

To import an LDIF file, you use the bulkload utility. This section discusses the tasks to process an LDIF file through bulkload. When you specify both the check and generate options, the entries are checked for schema compliance. All check -related errors are reported as command line output. This is just for information purpose. The bulkload tool does not generate duplicate data for duplicate entries.

It ignores duplicate entries. Use a text editor to fix all bad entries, then re-run bulkload with the check and generate options.

Repeat until there are no errors, or until the remaining errors are acceptable to you. For example, you might be willing to load a small number of entries with ldapadd. Even when errors occur, bulkload generates the intermediate files for those entries that had no check errors.

Do not modify these files. After you have generated the input files, run bulkload with the load option. The syntax is:. The tool will indicate any errors on the screen. They reside in bulkload. If load fails, the database might be in an inconsistent state. Restore the database to its state prior to the bulkload operation, either by using bulkload with the recover option or by restoring Oracle Internet Directory directory from a backup taken before you invoked bulkload.

Then repeat the command:. If you encounter an error during database statistics generation, you can use the oidstats. If you must add entries to an Oracle Internet Directory server that already contains data, and the server must be up and running at the same time, then you must use the incremental or append mode.

This mode is usually faster than other methods of adding entries to the directory. You invoke bulkload in incremental or append mode with command lines similar to these:. The bulkload operation can either update indexes or create indexes. Sometimes, however, bulkload does not update or create the indexes properly. This is typically due to issues like improper sizing. If this happens, you can use bulkload to verify and re-create all the indexes.

The load phase of bulkload can fail because of issues like improper disk sizing. After such a failure, the directory data might be inconsistent. You can use the recover option to return the directory data to its pre-bulkload state.

The bulkmodify tool is useful for modifying the attributes of a large number of entries in an existing directory. It can perform add and replace operations on attribute values.

It can operate on a naming context. Using filters, it can also operate selectively on a few entries under a specified naming context. The bulkmodify tool does not allow add or replace operations on the following attributes:.

It does not allow add for single-valued attributes. Select either the add or the replace option. By default, it deletes entries completely. It removes all traces of an entry from the database. If you use the option cleandb FALSE , bulkdelete turns all entries into tombstone entries instead of deleting them completely.