DB03 - DB2 z/OS for COBOL / PL1 Developers - 3 Days

2022-08-17Virtual3 Days £1200.00 (plus VAT)
2022-10-19Virtual3 Days £1200.00 (plus VAT)

Course Description


For on-site courses (i.e. at your premises), we are more than happy to tailor the course agenda to suit your exact requirements. In many cases, we are able to build your in-house standards and naming conventions into the delivered course.

Course Details

DB2 Environments
Important Note
Development Cycle With DB2
SQL Statement Format - Cobol
SQL Statement Format - Pl/I
Table Declaration
SQL Statements Used In Application Programs
SQL Include
SQL Communication Area
Retrieving Data Into Host Variables
Ambiguous Host Variables
SQL Error Codes
The SQLca - SQL Communications Area
Decoding The SQLca In A Program
Singleton Selects
Using A Cursor To Retrieve A Result Set
Declare Cursor
Open Cursor
Fetch A Row
Row Update
Row Deletion
Close Cursor
With Hold Option
The Optimize Statement
Fetch First 'n' Rows Only Clause
Fetch First vs Optimize For
Handling Nulls
Retrieving System Registers
Rowid - Direct Row Access
Direct Row Access - Example
Table Names In Application Programs
Batch Execution

Scrollable Cursors
Declaring a Scrollable Cursor
Insensitive Cursor
Sensitive Static Cursor with Insensitive Fetch
Sensitive Static Cursor with Sensitive Fetch
Sensitive Dynamic Cursor
Asensitive Cursor
Scrollable vs Non-scrollable Cursors
Updatable Cursors
Declaring a Scrollable Cursor
Fetching from a Scrollable Cursor
Absolute Fetching Examples
Relative Fetching Examples
Sensitive Dynamic Cursors - Fetching Rows
Sensitive Fetches - Update and Delete Holes
Positioned Updates Using A Sensitive Cursor
Scrollable Cursor Considerations

Multi-row Fetch and Insert
New Syntax for Declare Cursor
Fetching Rowsets
Fetch Examples
Host Variable Arrays
Catering for Update and Delete Holes
Partial Rowsets
Rowsets - SQLCA
Locking Rowsets
Positioned Update
Positioned Delete
Multi-row Insert
Multi-row Insert Syntax
Static & Dynamic Insert
Get Diagnostics
Get Diagnostics - Statement Information
Get Diagnostics - Condition Information
Get Diagnostics - Connection Information
Get Diagnostics - Examples
Diagnostic Information for Multi-Row Fetch
Get Diagnostics Fetch Example
Diagnostic Information for Multi-Row Insert
Get Diagnostics Insert Example
The Merge Statement
Merge Statement Restrictions
Merge Statement Example
Get Diagnostics Recap
Get Diagnostics - Statement Information
Get Diagnostics - Condition Information
Get Diagnostics - Merge Example

DB2 Bind
Packages Overview
Explanation Of Packages
Advantages Of Using Packages
Binding Packages
Binding Plans
Defaults For Binding
Binding In Batch
Identifying A Collection Within A Program
Program Execution In Batch
Plan Names In Application Programs

Identity Columns
Identity Columns - Examples
Identity Column Enhancements
Altering Identity Columns
Identity Columns - New Version 8 Parameters
Identity Columns - Retrieving the Generated Number
Identity Columns - Data Sharing Implications
Using Identity Columns with the Load Utility
Create Sequence Syntax
Sequence Ordering
Altering Sequences
Dropping Sequences
Using Sequences in Applications
Sequences - Considerations and Restrictions
Sequence Application Examples
Sequences and Identity Columns Comparison

Implications Of Concurrent Processing
Ims Resource Lock Manager (Irlm)
DB2 Locking Methods
The Lock Table Statement
Lock Modes
When Locks Are Acquired
When Locks Are Released
Isolation Levels
Controlling The Isolation Level At SQL Level
Keep Update Locks
Skip Locked Data
Unit Of Work In TSO
Commit And Rollback
Declaring Cursors With Hold
CICS Issues
IMS Issues
Savepoint Definition
Savepoints - Considerations and Restrictions
Transaction Deadlocks
Design Considerations

What Is Referential Integrity?
Parent And Dependent Tables
The Primary Key
The Foreign Key
Referential Constraint Rules
Constraint Names
More Complex Referential Structures
Check Pending Status
Resetting Check Pending Status
Referential Integrity Access
Design Considerations

Utility Overview
Running Utilities
The LOAD / UNLOAD Utilities
Online Load Resume
Online Load Considerations

Course Enquiry