Search for tag: "2024"

Scale productivity with watsonx assistants

Leading-edge companies are outperforming their competition in profitability, innovation, and revenue growth using generative AI assistants to transform how work gets done. In this session, learn how…

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Webinar: Now that you implemented IMS catalog, what's next?

This webinar explains some of the best practices to implement once the IMS catalog is up and running. For the most up to date information regarding IMS, please visit our product page:…

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IMS Community Call - Q2 2024

In our IMS Community Call hosted on 04.30.2024, the IMS team discussed the following topics: Updates from the previous quarter Upcoming events, conferences, webinars, enhancements, and blog releases…

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Unit 15 Section 5: Annotated VSAM Print of the Primary Index Database (HIDAM), Part 3

This video describes the beginning of the PRINT of the first DATA-containing CI.

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Unit 15 Section 4: Annotated VSAM Print of the Primary Index Database (HIDAM), Part 2

This video describes the second CI of the ESDS main database data set.

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Unit 15 Section 3: Annotated VSAM Print of the Primary Index Database (HIDAM), Part 1

This video describes the items in the first page of a VSAM PRINT for the database data set that corresponds to the first CI of the HIDAM primary index which is a VSAM KSDS data set.

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Unit 15 Section 2: CI and Block Sizes and HIDAM Space Usage

This video some items that should help you VSAM PRINTs, by providing a hexadecimal to decimal conversion table, VSAM’s numbering system, and how to find answers about HIDAM space usage.

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Unit 15 Section 1: Segment Format

This video describes the sequence in which various pointer types exist in the prefix of IMS segments.

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Unit 14 Section 6: Changes to Database Hierarchic Structure

This video describes how changes to the database hierarchic structure will require some database tool (such as IBM’s IMS Tools DB Segment Restructure), or a combination of standard utilities…

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Unit 14 Section 5: Database Segment Changes

This video describes the impacts of changing database segments. Existing application programs need not be affected by adding new segments. Existing programs can process without even being aware that…

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Unit 14 Section 4: Impacts of Database Changes

This video describes the impacts of making database changes, including what actions have no or little impact on application processing.

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Unit 14 Section 3: Database Design Considerations for Pointers

This video describes the following design considerations:Why you should validate your database design with some performance measurements Why you never specify a pointer that will never be used but…

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Unit 14 Section 2: Sequence Fields

The root segments of all database types, except for HDAM, require that a unique sequence field be defined. If no sequence field is defined for other (that is, non-root) segment types, IMS relies on…

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Unit 14 Section 1: Pointer Selection

This video describes physical child pointers, physical twin pointers, and secondary index pointers.

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Unit 13 Section 16: Lab 4: Database Recovery, Part 2

This lab demo continues the discussion of IMS database backup and recovery utilities.

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Unit 13 Section 15: Lab 4: Database Recovery, Part 1

This lab demo shows you how to: Use the Database Image Copy utility and prepare JCL and utility control statements to run it Use the DB Change Accumulation utility and prepare the JCL and utility…

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