Overview
This 5-day course is an introduction to SQL, relational database principles, and the HP NonStop SQL/MX product and serves as a prerequisite to more advanced NonStop SQL/MX courses. Hands-on lab sessions provide practical experience with generating SQL/MX queries to access data and creating database objects (catalogs, tables, indexes, views, and constraints).
Prerequisites
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Concepts and Facilities course
Audience
-
Anyone requiring an introduction to SQL and working with the NonStop SQL/MX product
Delegates will learn how to
- Describe relational database concepts and terminology
- Describe the HP NonStop™ SQL/MX processes and objects
- Use a mxci session and reference ANSI names for SQL/MX database objects
- Describe the basic process to write queries and the tools to evaluate the query performance
- Use the mxci SELECT statement and predicates to retrieve data from single tables
- List the types of functions supported in SQL/MX
- Retrieve data from
- Create a SQL/MX database (Catalog, Schema, Tables, Indexes, Views and Constraints)
- Modify data in a table using SQL/MX INSERT, UPDATE, and DELETE statements
- Describe the SQL/MX access options and isolation levels
- Describe SQL/MX database management functions
Benefits to you
Upon completion of this course, you will:
- Understand key relational database concepts and terminology
- Be able to use mxci commands to create SQL/MX objects
- Be able to use SQL statements to retrieve or modify data in SQL/MX tables
Outline
Module 1 Introduction to SQL Relational Databases
- Definition of a relational database
- Components of a relational database table
- Forming relationships in a relational database
- Types of relationships
- Description of Structured Query Language: Data Definition Language, Data Manipulation Language, Data Control Language, and Transaction Control Language
- Characteristics of a Relational Database Management System (RDBMS)
- Lab exercise
Module 2 Overview of SQL/MX Architecture
- SQL/MX Architecture
- SQL/MX System Metadata
- User Metadata (UMD) Tables
- User Catalog and Schemas
- SQL/MX User Tables,Objects, Tables, Indexes, Views, Constraints, Triggers,Object Namespaces-Object Type, Security Model, Process Architecture, Components, Catalog Manager, DDL Operations, Utilities
- NSM/web Architecture
- Lab exercise
Module 3 Introduction to mxci
- SQL/MX Help Facilities
- Starting an mxci session
- mxci Prompts and Termination Character
- SQL/MX Identifiers
- Logical (ANSI) Names
- Specifying ANSI
- Using Logical Names in an mxci Session
- mxci
- mxci cd Command, Is Commands
- mxci — LOG Command
- Lab exercise
Module 4 Query Writing Process
- Overview of query execution
- Overview of query development process
- Analyzing the query objective, Generating the query, Executing the query
- Verifying the results, Assessing performance
- Lab exercise
Module 5 Retrieving Data from a Single Table
- Data Types, Character Data Types, Numeric Data Types-Exact and Approximate, Datetime Data Types, Interval Data Types
- INVOKE Command
- SELECT Statement-Clauses, Syntax, Select List
- SELECT-Select List, ALL or DISTINCT Rows, [ANY N] or [FIRST N]
- FROM and WHERE Clause
- Predicates
- Row-Value-Constructor
- Comparison Predicates-Syntax, Examples
- LIKE, BETWEEN, and IN Predicates
- Boolean Operators and Compound Predicates
- NULL Values
- IS [NOT] Predicate
- ORDER BY, GROUP By, HAVING Clause
- Lab exercise
Module 6 Functions and Expressions
- Aggregate functions
- Character functions
- Datetime functions
- Mathematical functions
- Types of Expressions
- Literal Expressions
- Numeric Expressions
- Lab Exercise
Module 7 Retrieving Data from Multiple Tables
- Generating the following types of joins: CROSS, NATURAL, INNER, EQUI, LEFT, RIGHT, Self
- Correlation Names
- Join with Additional Search Conditions
- UNION Operation
- Lab exercise
Module 8 Query Expressions
- Query Expression: Definition, Types, Joined Table, Syntax
- Non-Joined Query Expresion Table: VALUES Statement, TABLE Statement, SELECT Query Specification
- Simple Table - SELECT Expression
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