Parsing CSV Lines and columns in PLSQL Mustafa, 2020-06-032020-06-03 Hi, Yesterday, one of my customers asked for help to tune a procedure and when I investigated the problem I find out that their method to get a specific “column” value in csv file was the problem. So we discuss the situation and adopt a new version of the code…. Continue Reading
Min/Max on same column Mustafa, 2020-05-222020-05-22 Hi, Let’s do a simple trick. You want to get min and max value of a column which is already indexed. As you know if you have an btree index on a column and try to get a Min or Max value then you will see an “Index Full Scan(Min/Max)”… Continue Reading
Be careful on Standard Edition 2 CPU Licensing Mustafa, 2020-04-222020-04-22 Hi, Today I looked for some dedicated servers for two of my customers. They have Standard Edition 2 (SE2) License. So this license says you can have only 1 CPU socket on the machine it does not matter how many core it has! this is really great reason to use… Continue Reading
Oracle Enterprise Manager Express 19c missing menus Mustafa, 2020-04-08 Hello again, Today, I’ve read a thread in the community and OP was asking for missing menus like Configuration, Storage, Tablespaces, users etc. This is the default behavior now! Since flash become obsolete slowly, Oracle leaves old EM Express flash version and comes up with Java Jet and default is… Continue Reading
How to convert a LONG column to CLOB directly in a query Mustafa, 2020-04-062020-04-06 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… Continue Reading
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