Questions

We are using DB v19.0 with the latest patches. We are in Greece but our packages / procedures and client apps are designent to work on AMERICA NLS_TERRITORY, so everything works fine!But in some cases, some 3rd party apps, are connecting to our database using ...

Hi,Can we create Composite sub-partitions on multiple columns using templateExampleCREATE TABLE sgs.part_test( order_date_time SYSTIMESTAMP, modulo_store_id NUMBER, recurring_flag CHAR (1))PARTITION BY RANGE (order_date_time) INTERVAL ( NUMTOYMI...

Hello, Ask TOM Team.Scenario:1. We have to deploy a feature in one app. The change consists of avoiding duplicates (mix of three database columns).2. In the database site I have to add one column to a table (200+ millions) and then update it so the app can val...

Tom,What is the difference between Checkpoint, incremental checkpoint & rolling checkpoints? I've read that an incremental checkpoint occurs every 3 seconds as opposed to a checkpoint which occurs based on fast_start_mttr_target, log switches, instance shutd...

I learned from the documentation of 11g that “Oracle Database always enforces statement-level read consistency”, <b>which I think should mean that every query in a single statement (including subqueries, excluding queries in PL/SQL functions) is consistent to ...

I want to validate the clob column from the source table using db link, but I am not able to fetch the clob column from the source table via db link. I am not having any permissions to the source db(create view/create table/PLSQL execution) other than read acc...

I have a scheduled job on Oracle which does counts before and after delete statements and spools the results to a log file on the Oracle server. The job is type SQL_SCRIPT. When I execute the job the SQL statements are also included in the spool file even th...

Hi,I will be starting my development for an Archiving project. Aim is to move all the old data from Production database and make it lighter. It consist of 2 parts. One is to move all data except the latest 6 months into an Archiving database in Oracle from PRO...

hi tomi have a databse with 125 tables. i can find the total number of tables of the database by the sql select * from tab; now i would like to know the number of rows in each table of my database with out executing select count(*) from...; each time.please...

We have a UI based application where users come in and setup SQL's to get excel based reports back, there are multiple options to chose on the schedule of the SQL execution and other related parameters. It's a free text box, the expectation is that the users w...

Hi Tom.I'm a great believer that a backup you haven't tested isn't a backup, so I'm trying to ensure that our RMAN backups get automatically verified, however I've come across some weird behaviour with rman backup validation.My aim is to run full verification ...

Hi Tom,My first time asking a question here. Am querying a historical table which not only has START_DATE and END_DATE, it also has CURRENT_FLAG where CURRENT_FLAG = 1 corresponds to END_DATE is null.I assume that the CURRENT_FLAG column (all 0s and a 1) woul...

dbms_output.put_line has limitation of 255 characters per line. How can I get out of this limitation, so that I can use dbms_output.put_line to have 480 character per line ...

Hi TOM,Sorry for asking this basic question (After two hours of searching, I am unable to find the answer)Let's say I have run opatch in an ora19 home to patch the binaries.But then I "forgot" to run datapatch.Is there any dictionary view to tell me that I "fo...

HiI have a query that is spooling results to a text file via an automated process Monday to Friday. Below are the variables that are used in the query. The queries returns data in Oracle SQL Developer, but returns only the headers with no data when I use Toa...

I have an issue with the 19c data pump export and I'm wondering if there is a data pump export parameter or some other strategy for resolving it.When a table's primary key is created as part of the create table statement, a unique index is automatically create...

In my data management class, we've started talking about OLTP vs. OLAP and the access patterns of each. The main points are that OLTP requires high performance, as these are the systems that our users interact with, and there's often a large concurrent number ...

Hello Experts,For an upcoming audit requirement, am working on a query. I am facing performance issues in getting the data. In one table gl_import_references the transactional references are stored in reference columns. There is a index in this table for colum...

Hi. What is the technical reason why the package DBMS_DEBUG_JDWP is not available on the Oracle Autonomous Database? What does it do that makes calling it illegal in PL/SQL?Thanks,...

Hi,I am working on a Archiving application. Aim is to bring year and years of data from Production DB into another DB named as Archiving DB and then delete from the Production DB. Currently I am testing deletion on an Archiving DB to test my package performanc...