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    ZOS101 and System Z Jobs Board!
Find Fresh New z/OS and System Z Jobs Here! All the newest System Z Jobs listed on our new state-of-the-art Job Board. Also search 1000's of New Mainframe Jobs, Project Management, and IT Management Jobs. Jumpstart your career NOW!

SQL Server Memory Buffer Pools: Understand the Basics
Yes, the best way to reduce memory pressure is to tune inefficient queries that are reading too much data for the result set that they are returning.

DB2 Basics: Table spaces and buffer pools - United States
This article helps the new DB2(R) database administrator understand the importance of table spaces and buffer pools. The article also explains how properly designing and tuning table spaces and buffer pools can enhance database performance. [Originally written in 2002, this article has been updated for IBM DB2 V9.7 for Linux(R), UNIX(R), and Windows(R).]

DB2 for z/OS Buffer Pools: Diving Into the Deep End ...
This article takes a detailed look at DB2 buffer pool management, an important performance consideration. The goal is to leverage virtual storage so you can keep application data closer at hand and eliminate physical I/Os—still the biggest component of DB2 application response time.

DB2 for z/OS: Something You Might Not Know About Large ...
Fast forward about seven months, and I'm talking to a group of people about DB2 for z/OS buffer pools and large real storage page frames. I told my audience that DB2 will automatically seek to allocate a PGFIX(YES) buffer pool using 1 MB page frames.

Tuning the Database Buffer Cache - Oracle Help Center
For many types of operations, Oracle Database uses the buffer cache to store data blocks read from disk. Oracle Database bypasses the buffer cache for particular operations, such as sorting and parallel reads.

Recommendations to reduce allocation contention in SQL ...
Note If a page is evenly-divisible by 8088, then it is a PFS page. For example, page 2:3:905856 is a PFS in file_id=3 in tempdb.

Db2 - IBM Data for developers
Featured. IBM Machine Learning for z/OS. Quickly create, deploy and manage high quality self-learning behavioral models to extract hidden value from enterprise data securely, in place and in real time.

Best practices for tuning DB2 UDB v8.1 and its databases
Creating buffer pools. Properly defining buffer pools is one of the major keys to having a well-performing system. With 32-bit operating systems, it is important to be aware of the limit on shared memory, which restricts a database’s buffers pools (that is, database global memory) from exceeding the following limits (64-bit systems do not have such a limit):

The Oracle PL/SQL LEVEL Keyword - PSOUG.org
Term: LEVEL Definition: In Oracle PL/SQL, the term LEVEL refers to a pseudocolumn in Oracle which is used in a hierarchical query to identify the hierarchy level in numeric format. For each row returned by a hierarchical query, the LEVEL pseudocolumn returns 1 for a root row, 2 for a child of a root, and so on. In a tree-like structure, the lowest level is the root (LEVEL=1) and it progresses ...

Oracle multiple CPU parallel query OPQ
One of the latest trends is for systems to have more and more CPUs inside a single server.

 

 

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