IBM Informix Online Training

Objective

  • Select the IBM IDS data types appropriate for storing your data
  • Create and maintain databases, tables, and indexes
  • Estimate size and extent requirements for tables and indexes
  • Create index strategies to improve performance
  • Create and maintain table and index partitioning (fragmentation)
  • Implement referential and entity integrity
  • Manage database and table modes
  • Manage violations logging
  • Describe how the optimizer builds an optimal query plan
  • Use the SET EXPLAIN feature to capture optimizer query plans
  • Use directives and environment variables to influence the optimizer
  • Optimize the query plan through the use of UPDATE STATISTICS
  • Manage end-user concurrency
  • Use permissions and roles to manage data security
  • Create and use views
  • Manage smart large objects
  • Create and manage triggers

IBM Informix Course Content:

1.Introduction to IDS Terminology

  • Define basic Informix Dynamic Server terms
  • Query the sysmaster database for information about the server

2.IDS Data Types

  • Identify the Informix data types
  • Choose the appropriate data type for a data column

3.Creating Databases and Tables

  • Create databases and tables
  • Determine database logging and storage requirements
  • Locate where the database server stores a table on disk
  • Create temporary tables
  • Locate where the database server stores temporary tables
  • Use the system catalog tables to gather information
  • Use the dbschema utility

 4.Altering and Deleting Databases and Tables

  • Drop a database
  • Drop a table
  • Alter a table
  • Convert a simple large object to a smart large object

5.Create, Alter, and Drop Indexes

  • Build an index
  • Alter, drop, and rename an index
  • Identify the four index characteristics

6.Managing and Maintaining Indexes

  • Explain the benefits of indexing
  • Evaluate the costs involved when indexing
  • Explain the maintenance necessary with indexes
  • Describe effective management of indexes
  • Enable or disable indexes

7.Table and Index Partitioning

  • List the ways to fragment a table
  • Create a fragmented table
  • Create a detached fragmented index
  • Describe temporary fragmented table and index usage

8.Maintaining Table and Index Partitioning

  • Alter a fragmented table
  • Alter a fragmented index
  • Explain how to skip inaccessible fragments

9.Cost-Based Query Optimizer

  • Write queries that produce the following index scans:
  • Sequential with a temporary table
  • Sequential scan with filter
  • Key-only index scan
  • Index Scan: lower and upper index filters
  • Dynamic Hash Join
  • Key-first index scans

10.Updating Statistics and Data Distributions

  • Execute the UPDATE STATISTICS statement and explain the results
  • Use the system catalogs to monitor data distributions

11.Managing the Optimizer

  • Describe the effect on the engine of the different values of OPTCOMPIND
  • Describe the effects of setting the OPT_GOAL parameter
  • Write optimizer directives to improve performance

12.Referential and Entity Integrity

  • Explain the benefits of referential and entity integrity
  • Specify default values, check constraints, and referential constraints
  • Determine when constraint checking occurs

13.Managing Constraints

  • Determine when constraint checking occurs
  • Drop a constraint
  • Delete and update a parent row
  • Insert and update a child row

14.Modes and Violation Detection

  •  Enable and disable constraints and indexes
  •  Use the filtering mode for constraints and the indexes
  •  Reconcile the violations recorded in the database

15.Concurrency Control

  •  Use the different concurrency controls
  •  Monitor the concurrency controls for lock usage
  •  Use the Retain Update Lock feature

16.Data Security

  • Use the database, table, and column level privileges
  • Use the GRANT and REVOKE statements
  • Use role-based authorization

17.Views

  •  Create views
  •  Use views to present derived and aggregate data
  •  Use views to hide joins from users

18.Introduction to Stored Procedures

  •  Explain the purpose of stored procedures
  •  Explain advantages of using stored procedures

19.Triggers

  •  Create and execute a trigger
  •  Drop a trigger
  •  Use the system catalogs to access trigger information

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