Skip to content

DBzTech-Technology Dossier

A repository of technical findings.

Menu
  • Home
  • COBOL
  • DB2
  • SAS
  • JCL
  • Google Cloud
  • AI
  • Contact
Menu

What is Google Cloud Functions

Posted on December 2, 2025May 17, 2026 by DBZtech

Looking for a way to run a small piece of code only when it’s needed — without managing servers? That’s exactly what serverless functions do. 🚀 What is Google Cloud Functions (Function-as-a-Service)?…

Google Cloud Run Vs Google App Engine

Posted on November 29, 2025May 16, 2026 by DBZtech

When exploring Google App Engine (GAE) as part of your Google Cloud learning journey, especially for the Google Cloud Digital Leader Certification, it becomes clear that while GAE is a powerful PaaS…

Google App Engine

Posted on November 29, 2025May 17, 2026 by DBZtech

Google App Engine is the solution to Infrastructure problem as seen in Compute Engine. Google App Engine (GAE) is a cloud-based Platform-as-a-Service (PaaS) that lets developers build, deploy, and scale web applications…

What is Google Anthos?

Posted on November 13, 2025May 17, 2026 by DBZtech

Google Anthos is a comprehensive hybrid and multi-cloud management platform designed for modern Kubernetes (K8s) deployments. It enables organizations to deploy, manage and secure Kubernetes clusters across the Google Cloud Platform (GCP),…

Google Cloud VMware Engine

Posted on November 12, 2025June 1, 2026 by DBZtech

Discover how Google Cloud VMware Engine and HCX enable seamless hybrid cloud migration, network extension, and automation for modern enterprises.”

Understanding Containers in Cloud: Virtual Machines Vs Containers

Posted on November 10, 2025May 17, 2026 by DBZtech

Revisiting VM Architecture and Its Limitations To understand the concept of a container, let’s first revisit the architecture of a virtual machine (VM) and examine why, despite its popularity, it has inherent…

What is Bare Metal Solution in GCP

Posted on November 9, 2025May 17, 2026 by DBZtech

What is a Bare Metal Server Bare metal servers are physical computers or dedicated servers that provide direct access to hardware resources—without any virtualization layer in between. Unlike virtual machines that share…

What is Google Compute Engine-Infrastructure-as-a-Service (IaaS)

Posted on November 8, 2025May 17, 2026 by DBZtech

Learn how Google Cloud Compute Engine simplifies infrastructure management through Infrastructure-as-a-Service (IaaS). Explore how automation, scalability, and built-in security transform traditional data centers.

What is Cloud CDN in GCP

Posted on November 7, 2025May 29, 2026 by DBZtech

🚀 Why Does Your Website Feel Slow — Even with “Fast” Internet? If a user in Tokyo tries to fetch assets from an origin server in Virginia, the laws of physics will…

Fix for ICE251A MISSING RDW OR DATA FOR *OUTREC in DFSORT

Posted on November 4, 2025May 17, 2026 by DBZtech

If you work with IBM DFSORT or ICETOOL, sooner or later you may encounter a cryptic error message like this:ICE251A 0 MISSING RDW OR DATA FOR *OUTREC : REASON CODE 03, IFTHEN…

Compare 2 files with ISRSUPC to find out Delta Records

Posted on November 1, 2025June 2, 2026 by DBZtech

🔍 Comparing Datasets with ISRSUPC (SuperC) in JCL: Filtering Delta Records In mainframe environments, comparing datasets to identify changes is a common task — especially in data migration, auditing, or version control scenarios….

Lock Escalation in DB2

Posted on October 20, 2025May 16, 2026 by DBZtech

Learn what lock escalation in IBM DB2 means, how it works, when it occurs, and how to prevent performance issues. Includes examples of lock promotion, tuning parameters like LOCKMAX, MAXLOCKS, and NUMLKTS, and best DBA practices for optimizing concurrency.

Ways to Access IBM DB2

Posted on October 14, 2025May 16, 2026 by DBZtech

IBM’s DB2 database system offers a robust set of interfaces and tools designed to streamline database access, management, and administration across platforms like UNIX, Windows, and z/OS. This guide outlines the key…

Export Query Results from IBM Db2 QMF to a Dataset

Posted on October 2, 2025June 2, 2026 by DBZtech

IBM Db2 QMF Export Report to a Dataset IBM Db2 Query Management Facility (QMF) provides several options for generating and saving reports. One of the most commonly used features is the IBM…

Understanding DB2 SQL Error -904: Resource Unavailable

Posted on September 17, 2025May 30, 2026 by DBZtech

DB2 SQLCODE -904 Resource Unavailable: Causes, Reason Codes, and How to Fix It If you’ve encountered DB2 SQLCODE -904, you’ve likely seen the message “resource unavailable”. While the error sounds straightforward, finding…

Posts pagination

Previous 1 2 3 4 … 7 Next

🔥 POPULAR WITH READERS

What Others Are Reading

    🔍 DEBUG CHALLENGE

    Spot the SQL Performance Killer

    Which line in this DB2 query will cause a costly full table scan instead of using the index?

    1: SELECT EMP_ID, SALARY 
    2: FROM EMPLOYEE 
    3: WHERE YEAR(HIRE_DATE) = 2026;
    ©2026 DBzTech-Technology Dossier | Design: Newspaperly WordPress Theme