RZRameen Zafarinoracle-impact.hashnode.dev·1d ago · 10 min readMulti-Region Bulk Actions in Oracle APEX: Selection, Copying, and Deletion across Cards & ReportsAdding multi-select features to tabular data is a standard UX requirement in web applications. While Interactive Grids in Oracle APEX offer native selection out of the box, Classic Reports and Cards R00
RGRafal Grzegorczykinrafal.hashnode.dev·2d ago · 3 min readSQLcl has built-in code snippets (ALIAS command). Because you can't remember everything, right?How many times a day do you re-type the exact same SQL queries? Whether it is checking system time, finding out which employees earn way too much, or running a complex query to check active database s00
CYchetan yadavinlevelupcareers.hashnode.dev·2d ago · 12 min readOCI DMS vs Manual Data Pump Migration: A Time and Risk ComparisonExecutive Summary Both OCI Database Migration (DMS) and a hand-run Data Pump migration move your data with the same underlying engine: Data Pump. If you only compare the data-movement time, they are r00
MMarkinr12.hashnode.dev·3d ago · 1 min readAPEX sidestep - inconventient "Warn on Unsaved Changes"Some of my Oracle APEX pages give me a "Warn on unsaved changes" even though the user has not touched any items yet. To determine which of the items APEX believe have been touched you can execute belo00
UAUptime Architectinuptimearchitect.hashnode.dev·3d ago · 15 min readOracle Transparent Data Encryption: Prove the Datafile Is Unreadable"The data is encrypted at rest." Everyone says it. Almost nobody checks it. It goes in the compliance questionnaire, the auditor ticks the box, and the actual bytes on disk stay a mystery until the da00
4F404 Foundersin404-founders.com·3d ago · 3 min readOracle WebLogic CVE-2026-21962: Max-Severity Flaw Under AttackCISA added a maximum-severity Oracle WebLogic Server Proxy Plug-in flaw to its Known Exploited Vulnerabilities catalog on August 24, 2026, confirming what honeypot researchers had already seen since l00
MMMatt Mulvaneyinmattmulvaney.hashnode.dev·5d ago · 2 min readSYS.VALIDATE_APEX : Fix-all for Upgrade issues Upgraded something? - don't let let issue find you first, just run the following as SYS after switching to your PDB -- CONN / AS SYSDBA -- ALTER SESSION SET CONTAINER=FREEPDB1; begin sys.validate_00
CYchetan yadavinlevelupcareers.hashnode.dev·5d ago · 12 min readOCI Database Migration Service (DMS): Setup and First MigrationExecutive Summary OCI Database Migration (still widely called DMS) is Oracle's managed service for moving Oracle databases into OCI, Base Database, Exadata, or Autonomous, with either an offline load 00
MMichaelinmmuehlbeyer.hashnode.dev·Aug 20 · 3 min readunable to open a cloned PDB with ORA-44303 & ORA-44775 Last week I've stumbled over an issues while cloning PDB from on CDB to another (remote) CDB. Basically everything has been done as usual. a common user has been created on the source CDB database h00
MSManu Shuklainecorpit.hashnode.dev·Aug 21 · 14 min readAWS shipped an RDS Oracle switchover block for ARC Region switch on 20 August 2026AWS shipped an RDS Oracle switchover block for ARC Region switch on 20 August 2026 Summary. On 20 August 2026 AWS added the Amazon RDS Switchover Read Replica execution block to Application Recovery C00
