Hello, A customer is asking to you generate order numbers one by one and without gap! What an unpleasant request isn’t it? if you are not familiar to databases then you might think that this request is logical but it is not. So your customer asked for this and you decided to develop your code
Development
How to store Yes No questions on table and BITAND function
Hi everyone, you might see BITAND function is frequently used by Oracle on source codes. Did you wonder why? What does BITAND function do? as you can understand from the name, it does a bitwise AND operation on parameters. probably you know what a bitwise and but as a small explanation it is an AND
Commit Time – Part 2 (On Commit Trigger)
Hello again, Not long ago, I mentioned about how to get approximate commit time on a table: http://mustafakalayci.me/2019/05/25/commit-time-for-an-inserted-row-in-oracle/ While I was reading some blogs and jumping from one to another, I came to Saibabu Devabhaktuni’n blog post: http://sai-oracle.blogspot.com/2013/09/how-to-setup-oracle-on-commit-trigger.html and I was literally shocked because I never heard something about this. So I did my tests
Can not Drop Materialized View on 12c and above?
Hello Everyone, I couldn’t write for a long time because of a crazy workload. During this heavy hardworking, I faced with a problem on one of my customers. They have a on commit refresh Materialized View (MV) and started to complain about they couldn’t insert into main table of MV. When I checked, I saw
Insert multi line text data using sqlldr
Hello Everyone, I just answered an OTN question about inserting multi line data using sqlldr and simply wanted to share it here (https://community.oracle.com/thread/4278952) so if have a data like this in your text file: you need to do some extra work to accomplish this problem. In my example I have 4 rows but 2
Using Temp instead of Undo for GTTs
Hello everyone, with 12c we have a very nice new option; Temp Undo for GTTs (Global Temporary Tables). as you know temporary tables are used for storing temporary data. those tables data are stored in TEMP tablespace so they are not vital. Temporary tables can generates very little redo data so they are faster than
Commit Time for an Inserted Row in Oracle
Hello everyone, This week, one of my customer have experienced a problem. They provide some Web Service to their suppliers and one of those web services creates some rows and then returns the response as successful operation but just after that, supplier queries the newly created those rows but they get “no rows”! When analyze
How to Get Your SID? USERENV vs V$MYSTAT!
Hello everyone, This is an easy question. How to find your own session SID and when you ask Google for it, you will find many answers. While reading some documents, I realized that some Gurus are using V$MYSTAT to get current SID: I always prefer USERENV(‘SID’) context to get SID and curious about which
Goodbye Log Triggers Welcome Flashback Data Archive
Hello, I would like to talk about Flashback Data Archive (or Flashback Archive – FBA) in 12c. FBA was introduced in 11g. It is not new but it has very important new features that allow us to use FBA very efficiently and for free. I would like to talk about new features more than what
How to call a Web Soap Service or API from PLSQL
Hello Everyone, I would like to share one of my codes which allows you to call a web service (soap service) or API through PLSQL. I modified it time to time whenever something new comes up and I still do. I hope it helps you too.