PL/SQL package SYS.DBMS_BACKUP_RESTORE version 19.03.00.00 in TARGET database is not current after upgrade Mustafa, 2020-04-06 Hi there, Yesterday I upgraded a 19.3 database to 19.6 on Windows 10 Pro and after upgrade Rman starts to give two warnings: PL/SQL package SYS.DBMS_BACKUP_RESTORE version 19.03.00.00 in TARGET database is not current PL/SQL package SYS.DBMS_RCVMAN version 19.03.00.00 in TARGET database is not current this didn’t happen when I… Continue Reading
Oracle 18c New feature Private Temporary Table Mustafa, 2020-03-22 Hello, 18c introduced a new object called Private Temporary Table (I will call it PTT in this post). PTT is just another version of Global Temporary Table(GTT). The data is temporary and will be stored for a time. Data in temporary tables (both PTT and GTT) can be queried by… Continue Reading
Using “User” function in a scheduled Job Mustafa, 2020-03-172020-03-17 Hi there, I wanted to talk about a problem that I faced recently. Also I thought about the subject because this post is also related with “Session user vs Schema”. Whenever I use the term of “Job” I will be talking about Dbms_Scheduler Jobs not Dbms_Job! When you created a… Continue Reading
Sequential ID column without gap! Mustafa, 2020-02-062020-02-06 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… Continue Reading
How to store Yes No questions on table and BITAND function Mustafa, 2020-01-20 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… Continue Reading
Commit Time – Part 2 (On Commit Trigger) Mustafa, 2019-12-192019-12-19 Hello again, Not long ago, I mentioned about how to get approximate commit time on a table: https://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…. Continue Reading
Can not Drop Materialized View on 12c and above? Mustafa, 2019-12-06 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…. Continue Reading
CLOB size matters! Mustafa, 2019-07-312020-07-05 Hi, Many developer and DBA has an idea about the storing clobs. Basic rule is “if length of clob is higher tan 4000 then it will be stored in lob segment not in table segment” which is correct but sometimes misinterpreted! if you have a clob column in your table,… Continue Reading
ORA-00942: table or view does not exist and sequences as default value Mustafa, 2019-07-232020-07-05 Hello, after 12c or above we are able to set sequence’s nextval as the default value of an ID column. One of my customer started to complain about the ORA 00942 (table or view does not exist) error even if they have all necessary privileges on the table. After a… Continue Reading