Questions

In our production environment ,a 2 nodes 11.2.0.4 rac ,the parameter parallel_force_local=true is set.one sql use hint parallel ie: SELECT /*+ PARALLEL(t1 8) */ .in sql execute plan we found Parallel Execution on 2 instanceParallel Execution Details (DOP=8 , S...

Good afternoon, Tom.I've started working for a new company recently and was just assigned a ticket regarding a "Free Space Fragmentation Index" warning for the SYSTEM tablespace of one of our databases (something I never ran into at my previous job). The first...

Oracle's Critical Patch Update Advisory publishes Oracle Patch number along with a matrix of CVE's that are on some Risk Matrix.For some reason, I am unable to see any way to see what CVE's a patch number affects.Am I missing something or is this not a possibi...

In Oracle Release 19 Document: Database SecureFiles and Large Objects Developer's Guide (https://docs.oracle.com/en/database/oracle/oracle-database/19/adlob/LOB-storage-with-applications.html#GUID-B82B3C24-1FAF-4661-96A0-28241FD2A052)there are following des...

Hi Tom,While doing sql query tuning I came across SQLT Tool and I found it very useful. But there's one problem. Our clients (esp. client's DBAs) are not ready to allow me to use it on their production environment. I told them that it won't have any adverse im...

Hi Tom,sorry for asking this dumb question. This is about how blocks are placed in the buffer cache, Say a 50 GB table is accessed using Full table scan with buffer cache size 20 GB, Does Oracle bring all the blocks of the 50 GB to the buffer cache and produce...

If a SQL statement in pdb container A is <b>exactly</b> the same SQL statement as in pdb container B, will they share the same execution plan even though the owner of the tables and the user owning the session (including GTTs) will be different in each contain...

Problem StatementI am working with a large dataset (~11-12 million records), where I need to identify key out-of-stock (OOS) event dates for different products (MASTER_ID) across multiple marketplaces (MARKETPLACE_ID).Each record in the DETAILED_OOS_EVENTS tab...

v19.22Requirement is to run some queries against the audit table at the beginning of the month to capture details about the previous calendar month.EVENT_TIMESTAMP in UNIFIED_AUDIT_TRAIL is timestamp(6) (not date)Is this an appropriate where clause to query th...

Hi Tom,i have a question about the index fragmentation, on the famous white paper "How to stop defragmenting and start living: the definitive world of fragmentation" by Bhaskar Himatsingka and Juan Loaiza, on section 4.2, they provide a script to tell if the i...

now i have json response from oracle service like following code{ "Status": null, "RequestNumber": null, <b>"validationResults": [ { "code":E1000, "details":'Validation Error' } ]</b>}now i can read keys Status and reque...

I'm trying to follow along with the live lab 'Build a 'Doctor Appointments Made Easy' App using Oracle APEXIntroduction' to get to know the new Workflows in Application Express. In Lab 9 task 6 I run into an error in the Check Appointment Fee activity: ORA-018...

Hi Experts, Thanks for taking the time out to ready my Question. I am receiving a file from a third party as a flat file, with different lines of different lengths. The first two characters of each line represents what data that line will have. (Please let me ...

Oracle Version: Docker Image container-registry.oracle.com/database/enterprise:19.19.0.0Setup Script (to enable logminer)<code>SELECT log_mode FROM v$database;SHUTDOWN IMMEDIATE;STARTUP MOUNT;ALTER DATABASE ARCHIVELOG;ALTER DATABASE OPEN;SELECT log_mode FROM v...

========= Dump for incident 2526042 (ORA 7445 [qcdlgcd]) ========[TOC00003]----- Beginning of Customized Incident Dump(s) -----Exception [type: ACCESS_VIOLATION, UNABLE_TO_READ] [ADDR:0x4] [PC:0x7FF87F3C490B, qcdlgcd()+75]The database prompts a socket error, a...

Hello Tom ,We have been facing a performance issue for some of the sql's in our system .We have a procedure called "<b>process_xyz</b>" which is being called our batch system and Web application ( OLTP) system . It uses a global temporary table to stage the ...

I was recently asked to find out why an SQL in our web solution took so much time to execute.- The SQL involved querying vast amounts of data- Without the expression involved in the query which took much time, the SQL took less than a second to execute.- Our D...

I get a .csv log file dropped from a microsoft server to a linux server using winSCP. The column REASON, is enclosed with "" and includes LF. Here is a 2 record snippet of the file: 5826431,5826431,,,New,17255483,,,,2e4cf893-078d-45b3-b548-2dc3c970ff25,5826431...

I was loading Large Data into a newly created table in Toad For Oracle 16.3 using SQL Loader with an Excel Data but i got error "Rejected - Error on table SCH_STRUCT_FIN.OFFSHORE_INV_COMM_MEETING_DATA, column COLLATERAL_FUNDING_REQUIREMENT . Field in data file...

Can I join a PL/SQL table with database tables? If so, what's kind of PL/SQL table I can use: index table or nested table? ...