Hi, This is a big problem since LONG is a very painful data type. You cannot search in it, use it in CTAS (create table as), pass it to a plsql object as parameter etc. Oracle strongly suggest not to use a LONG column anymore but unfortunately there are many LONG columns in data dictionary
18c
Oracle 18c New feature Private Temporary Table
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 the session which inserts the
Using “User” function in a scheduled Job
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 job for a different user
Sequential ID column without gap!
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
CLOB size matters!
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, your data might be in
ORA-00942: table or view does not exist and sequences as default value
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 quick investigation I realized that
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